Updated on 2024/03/24

写真a

 
NORINAGA Koyo
 
Organization
Institutes of Innovation for Future Society Professor
Graduate School
Graduate School of Engineering
Title
Professor
Contact information
メールアドレス
External link

Degree 1

  1. PhD (Engineering) ( 1999.3   Hokkaido University ) 

Research Interests 2

  1. Chemical engineering

  2. Chemical engineering

Research Areas 4

  1. Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Chemical reaction and process system engineering

  2. Environmental Science/Agriculture Science / Environmental load reduction and remediation

  3. Energy Engineering / Earth resource engineering, Energy sciences

  4. Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Chemical reaction and process system engineering

Current Research Project and SDGs 2

  1. Energy and material recycling of wastes

  2. CO2 capture and utilization

Research History 8

  1. Nagoya University   Institutes of Innovation for Future Society   Professor

    2022.4

  2. Nagoya University   Director in General

    2023.4

  3. Nagoya University   Institute of Innovation for Future Society   Director in General

    2018.10 - 2022.3

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  4. Nagoya University   Graduate School of Engineering Chemical Systems Engineering 1   Professor

    2017.4

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  5. Kyushu University   Institute for Materials Chemistry and Engineering   Associate professor

    2009.4 - 2017.3

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  6. 北海道大学エネルギー変換マテリアル研究センター   准教授

    2006.4 - 2009.3

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    Country:Japan

  7. Institute for Chemical Technology and Polymer Chemistry, KIT (former University of Karlsruhe), Germany   Researcher

    2002.4 - 2006.3

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    Country:Germany

  8. 東北大学反応化学研究所   助手

    1999.4 - 2002.3

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    Country:Japan

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Professional Memberships 5

  1. 化学工学会

  2. 日本エネルギー学会

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  3. 日本鉄鋼協会

  4. 日本鉄鋼協会

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  5. 化学工学会

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Committee Memberships 27

  1. 石油エネルギー技術センター(JPEC)   評議員  

    2023.6   

  2. 公益財団法人地球環境産業技術研究機構   科学技術諮問委員会委員  

    2022.4 - 2024.3   

  3. 公益財団法人地球環境産業技術研究機構   科学技術諮問委員会委員  

    2022.4 - 2024.3   

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  4. 公益社団法人化学工学会   戦略企画会議委員  

    2021.4   

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    Committee type:Academic society

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  5. 公益社団法人化学工学会   理事  

    2021.4   

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    Committee type:Academic society

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  6. 公益社団法人化学工学会   戦略企画会議委員  

    2021.4 - 2023.3   

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    Committee type:Academic society

  7. 公益社団法人化学工学会   理事  

    2021.4 - 2023.3   

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    Committee type:Academic society

  8. 石油エネルギー技術センター(JPEC)   技術企画委員会委員  

    2021.12   

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    Committee type:Government

  9. 石油エネルギー技術センター(JPEC)   製油所グリーン化技術委員会委員  

    2021.12   

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    Committee type:Government

  10. 石油エネルギー技術センター(JPEC)   技術企画委員会委員  

    2021.12   

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    Committee type:Government

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  11. 石油エネルギー技術センター(JPEC)   製油所グリーン化技術委員会委員  

    2021.12   

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    Committee type:Government

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  12. 北海道大学   研究開発推進委員(NEDOプロジェクト)  

    2020.8   

  13. 北海道大学   研究開発推進委員(NEDOプロジェクト)  

    2020.8   

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  14. 国立研究開発法人 新エネルギー・産業技術総合開発機構   NEDO技術委員  

    2020.8 - 2022.3   

  15. 国立研究開発法人 新エネルギー・産業技術総合開発機構   NEDO技術委員  

    2020.8 - 2022.3   

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  16. 化学工学会 石油精製ファウリング防止分科会   副委員長  

    2019.4   

  17. 化学工学会東海支部   幹事  

    2019.4   

  18. 化学工学会東海支部   幹事  

    2019.4   

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  19. 日本学術振興会 石炭・炭素資源利用技術第148委員会   委員  

    2018.10 - 2020.3   

  20. 日本学術振興会 石炭・炭素資源利用技術第148委員会   委員  

    2018.10 - 2020.3   

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  21. NEDOバイオジェット燃料生産技術開発事業推進委員会   委員  

    2017.12 - 2021.3   

  22. NEDOバイオジェット燃料生産技術開発事業推進委員会   委員  

    2017.12 - 2021.3   

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  23. 化学工学会   エネルギー部会 炭素資源利用分科会 分科会長  

    2017.4   

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    Committee type:Academic society

  24. 化学工学会 エネルギー部会   幹事  

    2017.4   

  25. 化学工学会 エネルギー部会   幹事  

    2017.4   

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  26. 日本エネルギー学会   大会実行委員  

    2010.4 - 2019.3   

  27. 日本エネルギー学会   大会実行委員  

    2010.4 - 2019.3   

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Awards 6

  1. 研究賞

    2024.3   化学工学会  

    則永行庸

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    Award type:International academic award (Japan or overseas)  Country:Japan

  2. 日本エネルギー学会:平成28年度「論文賞」

    2016.8   日本エネルギー学会  

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    Award type:Honored in official journal of a scientific society, scientific journal  Country:Japan

  3. 日本エネルギー学会:平成27年度「論文賞」

    2015.8   日本エネルギー学会  

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    Award type:Honored in official journal of a scientific society, scientific journal  Country:Japan

  4. 日本エネルギー学会 進歩賞(学術部門)

    2013.2   日本エネルギー学会   炭化水素熱分解の詳細化学と分子反応速度モデリングに関する研究

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  5. (公財)鉄鋼環境基金 技術委員長賞

    2011.9   (公財)鉄鋼環境基金    コークス炉ガスの接触部分酸化・水蒸気改質反応機構の解明と迅速水素製造システムの構築

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    Award type:Award from publisher, newspaper, foundation, etc.  Country:Japan

  6. Best paper award

    2010   Second International Symposium on Gasification and Its Application, iSGA 2010   COPRODUCTION OF CLEAN SYNGAS AND IRON FROM WOODY BIOMASS AND NATURAL GOETHITE ORE

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    Award type:Award from international society, conference, symposium, etc.  Country:Japan

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Papers 205

  1. Design and optimization of the flexible poly-generation process for methanol and formic acid from CO<inf>2</inf> hydrogenation under uncertain product prices Reviewed

    Li Q., Machida H., Ren X., Feng Z., Norinaga K.

    International Journal of Hydrogen Energy   Vol. 54   page: 635 - 651   2024.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:International Journal of Hydrogen Energy  

    During the design of the carbon capture and hydrogen storage process, a static CO2 hydrogenation poly-generation process for methanol and formic acid synthesis was developed, thereby reducing recycling flow and feedstock losses in the single methanol synthesis process and increasing product diversity. Additionally, a novel flexible poly-generation process was proposed as the product prices fluctuated with the market environment throughout the plant's life cycle. For the static poly-generation process, a mixed integer nonlinear programming model was established, followed by the Mesh Adaptive Direct Search algorithm to determine the optimal parameter design. For flexible processes, with the unscented transform tool, a two-stage optimization strategy is proposed for obtaining optimal design and operating parameters that are computationally tractable. With an input CO2 flow rate of 200 kmol/h, the results show (1) the static process with an optimal Return On Investment of 13.05%, a fixed investment cost of $ 34.14 × 106, and an annual net profit of 4.46 × 106 $/year; and (2) the flexible process, in which the flexibility indices of the methanol and formic acid production units are 1.088 and 1.194, respectively, resulting the fixed investment cost increase to $ 39.19 × 106, an increase of 14.79%. Accordingly, the annual net profit increased by 8.97% to 4.86 × 106 $/year, while the Return On Investment decreased by 4.67%–12.44%. For investment decision-makers, the flexible poly-generation process can achieve higher profits and reduce potential market risks when they have adequate financing.

    DOI: 10.1016/j.ijhydene.2023.01.205

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  2. Regulation of temperature distribution in fixed bed reactor for CO<inf>2</inf> methanation through “CHESS” monolith structure catalyst Reviewed

    Zhang W., Lin Y., Zhang Y., Li T., Li J., Chen Z., Norinaga K.

    Applied Thermal Engineering   Vol. 236   2024.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Applied Thermal Engineering  

    CO2 methanation suffers from the problem of temperature runaway phenomenon due to its exothermic nature. To mitigate this issue, optimizing catalyst structure becomes crucial. This work established numerical models to investigate the CO2 methanation reaction and heat/mass transfer process in the reactor with porous pellet and monolithic catalysts. Results show that the reactor with porous pellets has the lowest carbon conversion per unit pressure drop due to its large total pressure drop. In contrast, the reactor with monolith exhibits a much larger carbon conversion per unit pressure drop but a smaller absolute carbon conversion. Based on this, an improved “CHESS” monolith structure was proposed and improved, which not only maintains a high absolute carbon conversion (62.6 %) but also enhances the heat transfer process in CO2 methanation. Moreover, compared with the reactor with porous pellets, the maximum temperature in the improved “CHESS” monolith was decreased by around 11.09 %.

    DOI: 10.1016/j.applthermaleng.2023.121826

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  3. 1-02 Tar and soot formation characteristics of various coals in a two-stage entrained flow coal gasifier revealed by detailed chemical kinetic modeling Reviewed

    LI Tailin, NAKAMURA Maiki, UEHARA Yusuke, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 60 ( 0 ) page: 4 - 5   2023.10

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Institute of Energy  

    <p>Substituting air with either CO<sub>2</sub> or H<sub>2</sub>O in the gasifying agents presents a viable strategy for promptly integrating a carbon-neutral energy vector into coal gasification technology, concurrently mitigating harmful particulate matter emissions. However, fully understanding the evolution of tar in the practical gasifier has proven to be challenging owing to complex mixture of the scale of reactors. This study presents a detailed kinetic investigation of tar and soot formations from the gas-phase reactions in the reductor of a two-stage entrained flow coal gasifier under oxy-fuel (O<sub>2</sub>/CO<sub>2</sub>, O<sub>2</sub>/H<sub>2</sub>O) atmospheres. The effects of temperature and coal types were studied. The results show that benzene, followed by naphthalene and phenanthrene, serves as the primary tar products. Higher temperature promotes tar reduction, especially under O<sub>2</sub>/H<sub>2</sub>O condition. Moreover, soot yield under the O<sub>2</sub>/H<sub>2</sub>O condition is less than that under the O<sub>2</sub>/CO<sub>2</sub> condition owing to weaker hydrogen abstraction acetylene addition route. Soot yield decreases with the temperature rises. This work provides valuable insights and guidance for the reduction of tar and soot in the two-stage entrained flow coal gasifier under oxy-fuel atmospheres.</p>

    DOI: 10.20550/jiesekitanronbun.60.0_4

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  4. 1-08 The computational fluid dynamics analysis resolved at the formed catalyst shape level of CO<sub>2</sub> hydrogenation reactor Reviewed

    SHIMADA Taiki, LIN Yixiong, NAKAMURA Maki, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 60 ( 0 ) page: 16 - 17   2023.10

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Institute of Energy  

    <p>This paper reports a 3D computational fluid dynamics simulation of carbon dioxide (CO<sub>2</sub>) methanation in a shell-and-tube reactor resolved to the catalyst geometry level. Fluid flow, heat transfer, and mass transfer are calculated, and the local distribution of gas and solid phases in the reactor is shown in detail. To generalize the simulation model, the catalyst effectiveness factor was treated as a variable, and the catalyst effectiveness factor equation and its parameters were investigated. As a result, the catalyst effective coefficient derived from the general Thiele modulus was the best agreement for the present computational model. For higher accuracy, the equations need to be improved to be more suitable for more reality models and chemical reaction equations.</p>

    DOI: 10.20550/jiesekitanronbun.60.0_16

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  5. CFD simulation of CO2 methanation through the Sabatier reaction in a shell-and-tube reactor incorporating phase change on the shell side Reviewed

    Kazui Fukumoto, Wei Zhang, Risa Mizoguchi, Yixiong Lin, Cheolyong Choi, Hiroshi Machida, Koyo Norinaga

    Fuel   Vol. 349   page: 128126 - 128126   2023.10

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    DOI: 10.1016/j.fuel.2023.128126

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  6. Modeling the Chemical Structures of Coals with Different Classifications Using Mean Molecular Weights

    Hata Yuki, Hayashizaki Hideyuki, Takanohashi Toshimasa, Takahashi Takafumi, Kanehashi Koji, Norinaga Koyo

    Tetsu-to-Hagane   Vol. 109 ( 10 ) page: 792 - 801   2023.10

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Iron and Steel Institute of Japan  

    <p>The chemical structure models for the extractions and residues of two types of bituminous coals, A and B, were constructed. The molecular weights of the extractions were determined via gel permeation chromatography (GPC). New standard materials with structures similar to those of coal extraction (<i>i.e</i>., 9, 10- diphenylanthracene, 5,6,11,12-tetraphenylnaphthracene, and chemical compounds A (Mw = 811) and B (Mw = 1135), which were synthesized using the coupling reaction) were adopted for GPC in order to obtain more accurate mean molecular weights than those in literature. Furthermore, a support program for constructing chemical structure models based on <sup>1</sup>H nuclear magnetic resonance (NMR) spectra was adopted. The coal models constructed suitably indicate the differences between the types of coal. In particular, it is found that a high pyridine-insoluble fraction extracted rate, which accounts for the most significant difference between the total extracted rates for coals A and B, enhance the coking property of coal A. In addition, the cluster size in the magic solvent-insoluble fraction might affect the softening property of coal.</p>

    DOI: 10.2355/tetsutohagane.tetsu-2023-042

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  7. Facile Synthesis and Insight of Atomically Dispersed Ni Catalyst on N-Doped Carbonized Lignin for Highly Efficient Electrochemical CO<sub>2</sub> Reduction to CO Reviewed

    Park, GD; Sirisomboonchai, S; Norinaga, K

    CHEMSUSCHEM   Vol. 16 ( 16 ) page: e202300530   2023.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ChemSusChem  

    For the electrochemical CO2 reduction reaction (CO2RR), the single-metal atom catalysts (SACs) on N-doped carbon are considered promising alternatives to conventional catalysts owing to their unique electrocatalytic properties. However, environmentally friendly methods to prepare SACs are still required. Herein, Ni SAC was synthesized using lignin derived from biomass whose structural and chemical properties render it suitable as both a base carbon matrix and a metal chelating agent. The coordination environment of active Ni−Nx sites was readily manipulated by controlling thermal activation. The Ni SAC on lignin-derived N-doped carbon achieved an outstanding CO Faradaic efficiency of 98.2 % at −0.9 V vs. RHE, which is comparable to those of conventional SACs. Experimental results combined with DFT calculations demonstrate the optimal conditions for manufacturing Ni SAC which is highly selective for CO2-to-CO conversion and the effect of the electronic structure of Ni atom on CO2RR kinetics.

    DOI: 10.1002/cssc.202300530

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  8. 6-1-1 Overall electrochemical CO<sub>2</sub> reduction - oxygen evolution reaction system via electrodeposition bimetallic covered Cu-foam based electrode Reviewed

    SIRISOMBOONCHAI Suchada, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of the Annual Conference of The Japan Institute of Energy   Vol. 32 ( 0 ) page: 116 - 117   2023.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Institute of Energy  

    <p>CO<sub>2</sub> reduction reaction(CO<sub>2</sub>RR), as a potential path toward converting CO<sub>2</sub> to fuel, is of great significance for alleviating the shortage of fossil fuels and combatting global climate change. Cu foam (CF) exhibits high electrochemical water splitting and CO<sub>2</sub> reduction activity. Practical electrochemical overall CO<sub>2</sub>RR−OER two-electrode systems include a CO2RR at the cathode and an oxygen evolution reaction (OER) at the anode. Herein, we emphasized the CF-modified surface for the two-side reaction by constructing earth-abundant materials on the CF-modified surface with InZnCu/CF as the cathode and Cu(OH)<sub>2</sub> NWs@NiCo-LDH as the anode. These were efficient for a CO<sub>2</sub>RR system with a potential close to an ideal thermodynamic potential for an overall CO<sub>2</sub>RR−OER. Although this system had different metal composites on both sides, this still allowed a sustainable operation for 40 h with high efficiency. Moreover, we emphasized a further development in scalability. Thus, the energy input for the conversion of CO per ton of CO<sub>2</sub> resulted in a low range. The demonstration of the CO<sub>2</sub>RR−OER provided a facile method of fabricating electrodes based on CF and a constructed overall CO<sub>2</sub>RR system, which will guide the future development of practical industrial applications.</p>

    DOI: 10.20550/jietaikaiyoushi.32.0_116

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  9. 4-4-1 Effect of fluid temperature on heat transfer and flow behavior in a sublimation tank Reviewed

    YAMAGUCHI Hiroyasu, UEHARA Yusuke, MACHIDA Hiroshi, NORINAGA Koyo, SAITO Yasuhiro

    Proceedings of the Annual Conference of The Japan Institute of Energy   Vol. 32 ( 0 ) page: 90 - 91   2023.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Institute of Energy  

    <p>This study investigated the temperature distribution in a laboratory-scale sublimation tank. Numerical simulations in the sublimation tank which cooled CO<sub>2</sub> gas at a cold plate were performed to examine the effect of the inlet and initial temperatures of CO<sub>2</sub> gas on the temperature distribution. The results showed that the inlet temperature had a minimal impact on the temperature distribution in the tank due to the low flowrate of the gas. In contrast, a decrease in the initial temperature resulted in the increase of the sublimation region below the sublimation temperature, indicating the possibility of dry ice deposition in areas other than near the cold plate.</p>

    DOI: 10.20550/jietaikaiyoushi.32.0_90

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  10. 4-5-1 Design and Optimization of the Flexible Poly-generation Process for Methanol and Formic Acid from CO<sub>2</sub> Hydrogenation Under Uncertain Product Prices<sup>☆</sup> Reviewed

    LI Qiao, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of the Annual Conference of The Japan Institute of Energy   Vol. 32 ( 0 ) page: 98 - 99   2023.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Institute of Energy  

    <p>During the design of the carbon capture and hydrogen storage process, a flexible CO<sub>2</sub> hydrogenation poly-generation process for methanol and formic acid synthesis was developed to reduce recycling flow and feedstock losses in the single methanol synthesis process and increase product diversity. This poly-generation process is formulated as the MINLP model, which was optimized using a two-stage optimization strategy with the unscented transform tool to obtain optimal design and operating parameters that are computationally tractable. For investment decision-makers, the flexible polygeneration process can achieve higher profits and reduce potential market risks when they have adequate financing.</p>

    DOI: 10.20550/jietaikaiyoushi.32.0_98

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  11. Insights into structure-performance relationship in radial flow fixed bed reactor for CO<inf>2</inf> methanation Reviewed

    Zhang W., Lin Y., Norinaga K.

    International Journal of Hydrogen Energy   Vol. 48 ( 64 ) page: 24594 - 24606   2023.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:International Journal of Hydrogen Energy  

    The extraction of petroleum and natural gas is often accompanied by a large number of associated gases, especially the high CO2 content reservoirs facing the emission of a large amount of CO2. CO2 methanation is recognized as one of the suitable candidates for CO2 utilization to reduce the emission of CO2. Because of the highly exothermic nature of the reaction, however, it is very important to enhance the heat transfer process inside the reactor and inhibit the formation of hot spots. In the fixed bed reactor, the heat transfer in the radial direction is greatly limited compared with that in the axial direction. Thus, this work adopted the radial flow reactor to evaluate the CO2 methanation process by the means of a numerical model based on OpenFOAM. Four types of radial flow reactor configurations, namely centrifugal Z-type, centrifugal Π-type, centripetal Z-type, and centripetal Π-type, were compared. The fluid flow, heat transfer, and reaction performances for these reactors were discussed under consistent operating conditions. Results show that the centrifugal Π-type structure has the most uniform flow field. In terms of heat transfer and reaction performance, the centripetal Z-type structure is the best among the four radial flow reactor configurations. These findings provide a theoretical basis and technical guidance for designing and developing radial flow reactors.

    DOI: 10.1016/j.ijhydene.2023.03.343

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  12. Polycyclic aromatic hydrocarbons (PAHs) and soot formations under different gasifying agents: Detailed chemical kinetic analysis of a two-stage entrained flow coal gasifier Reviewed

    Tailin Li, Cheolyong Choi, Kazui Fukomoto, Hiroshi Machida, Koyo Norinaga

    Fuel   Vol. 343   page: 127876 - 127876   2023.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.fuel.2023.127876

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  13. Facile pyridinization of bio-based furfural into 3-hydroxypyridines over Raney Fe catalyst Reviewed

    Ren, DZ; Jiang, XL; Zhang, NH; Duo, J; Norinaga, K; Huo, ZB

    BIOMASS CONVERSION AND BIOREFINERY   Vol. 13 ( 9 ) page: 8115 - 8121   2023.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Biomass Conversion and Biorefinery  

    Production of pyridine derivatives from bio-based feedstocks instead of fossil fuels is a promising strategy. The development of effective heterogeneous catalysts and mild reaction systems for pyridinization of renewable biomass derivatives remains a huge challenge. In this article, a direct and environment-friendly method was reported to produce 3-hydroxypyridine from bio-based furfural in water over a Raney Fe catalyst. Raney Fe exhibited an efficient catalytic performance for activation of the aldehyde group of furfural and afforded an 18.2% yield of 3-hydroxypyridine at 120 °C with ammonia as N source. The polymerization of furfural on the catalyst in hot water was the main cause of deactivation, which was verified by the scanning electron microscope (SEM), X-ray diffraction (XRD), and N2 adsorption and desorption analysis. A possible mechanism for this reaction was also proposed. This study provides a new way for academia and industry to realize the synthesis of nitrogen-containing chemicals from biomass and its derivatives.

    DOI: 10.1007/s13399-021-01802-5

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  14. CFD simulation of CVD reactors in the CH3SiCl3(MTS)/H2 system using a two-step MTS decomposition and one-step SiC growth models Reviewed

    Ogawa, T; Fukumoto, K; Machida, H; Norinaga, K

    HELIYON   Vol. 9 ( 4 ) page: e15061   2023.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Heliyon  

    In this study, we report on a computational fluid dynamics (CFD) simulation of the chemical vapor deposition reactor of silicon carbide (SiC) in the methyltrichlorosilane (MTS, CH3SiCl3)/H2 system. The formation of SiC thin film is controlled by various process parameters, such as temperature and pressure. In this study, we propose a reaction mechanism of MTS decomposition to SiC growth on a substrate surface for CVD reactors in the CH3SiCl3(MTS)/H2 system. The reaction mechanism has two gas-phase pyrolysis reactions and one SiC film formation reaction. However, we individually build and validate MTS decomposition and SiC growth models to reduce uncertainty. An in-house version of reactingFoam, a reactive flow solver within OpenFOAM v2006, was used as the simulation tool. Our model accurately reproduced MTS decomposition for T = 1100–1350 K and [H2]/[MTS] = 2.65–14 at p = 101,325 Pa. Then, the MTS decomposition model was coupled with the SiC growth model, and the coupled model was applied to the SiC deposition data. The model could reproduce multiple datasets through validation studies.

    DOI: 10.1016/j.heliyon.2023.e15061

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  15. Lattice Boltzmann study on the effect of hierarchical pore structure on fluid flow and coke formation characteristics in open-cell foam for dry reforming of methane Reviewed

    Lin, YX; Yang, C; Zhang, W; Machida, H; Norinaga, K

    CHEMICAL ENGINEERING SCIENCE   Vol. 268   2023.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Chemical Engineering Science  

    Dry reforming of methane (DRM) is one of the feasible strategies for carbon capture and utilization. However, the DRM process has a high tendency toward carbon deposition, which is restricted to industrial applications. In order to further improve coke formation resistance, open-cell foam with hierarchical pore structure was investigated. An artificial algorithm was adopted to construct a hierarchical pore structure in open-cell foam. Based on a 3-D lattice Boltzmann model, this work explored the effect of two hierarchical pore structure parameters on the fluid flow and coke formation characteristics in open-cell foam, which are hierarchical pore volume ratio (V2/V1) and hierarchical pore size ratio (d2/d1). The results indicated that increasing V2/V1 and d2/d1 can significantly promote permeability. Under the restriction ofV2/V1 = 4, from d2/d1 = 1 to 4, the coke formation rate decreases by approximately 57.49 %. These findings provide a theoretical basis and technical guidance for designing and developing open-cell foam reactors.

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  16. Japanese Gasification Technology Reviewed

    NODA Reiji, ENOMOTO Hiroshi, NAMIOKA Tomoaki, FUSHIMI Chihiro, HOSOKAI Sou, NORINAGA Koyo

    Nihon Enerugii Gakkai Kikanshi Enermix   Vol. 102 ( 1 ) page: 74 - 79   2023.1

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  17. Estimation of effective thermal conductivity in open-cell foam with hierarchical pore structure using lattice Boltzmann method Reviewed

    Lin, YX; Yang, C; Zhang, W; Fukumoto, K; Saito, Y; Machida, H; Norinaga, K

    APPLIED THERMAL ENGINEERING   Vol. 218   2023.1

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    Effective thermal conductivity in open-cell foam with hierarchical pore structure was estimated using lattice Boltzmann method. A new structure algorithm was proposed to reconstruct hierarchical pore structure in open-cell foam. In order to elucidate the heat transfer characteristics in hierarchical pore structure, the effect of structure parameters, namely the hierarchical pore size ratio (d2/d1), the hierarchical pore volume ratio (V2/V1), and temperature on the effective thermal conductivity was investigated. These results indicated that hierarchical pore structure is unfavorable to the effective thermal conductivity in open-cell foam for the heat conduction process. At high temperatures (Tave = 450–1650 K), however, the effective thermal conductivity in hierarchical pore structure is higher than that in uniform pore structure considering heat radiation. Furthermore, for the heat conduction process, a correlation of the effective thermal conductivity related to open-cell foam with hierarchical pore structure was proposed and validated by available experimental data.

    DOI: 10.1016/j.applthermaleng.2022.119314

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  18. Boosting in-situ hydrodeoxygenation of fatty acids over a fine and oxygen-vacancy-rich NiAl catalyst br Reviewed

    Wang, JY; Ren, DZ; Zhang, NH; Lang, JY; Du, YY; He, WH; Norinaga, K; Huo, ZB

    RENEWABLE ENERGY   Vol. 202   page: 952 - 960   2023.1

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    Hydrodeoxygenation (HDO) of fatty acids into long-chain alkanes for aviation fuels with alcohol hydrogen donor at mild condition over Ni-based catalyst is a practicable subject. However, highly active sites design for Ni-based catalyst remains significant challenges. Herein, a fine NiAl particle catalyst with numerous oxygen vacancy sites was fabricated via hydrothermal and reduction treatment. Introduction of small amount of Al species into Ni catalyst not only reduces the Ni particle size exposing plenty of active sites, but also generates oxygen vacancies in AlOx and sets up charge transfer in Ni-AlOx interfaces, thus guarantees the excellent in-situ HDO activity of fatty acids using isopropanol as hydrogen donor. Density functional theory calculation results further reveal that Ni (111) modified by AlOx with oxygen vacancy improves the charge density in Ni-AlOx interface and enhances the adsorption of fatty acid, facilitating the hydrodeoxygenation process. Benefiting from these attributes, Ni–Al0.33Ox presented superior catalytic activity and stability, which achieved 93.2% yield of n-heptadecane at 250 °C and was able to reuse at least 4 times. Therefore, the as-prepared Ni–Al0.33Ox is a promising Ni-based catalyst for alkanes production via in-situ HDO of fatty acids at mild conditions.

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  19. Modeling and estimating kinetic parameters for CO<inf>2</inf> methanation from fixed bed reactor experiments Reviewed

    Tsuboi T., Yasuda S., Choi C., Zhang W., Machida H., Norinaga K., Yajima T., Kawajiri Y.

    Journal of Advanced Manufacturing and Processing   Vol. 5 ( 1 )   2023.1

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    CO2 methanation, which converts CO2 and hydrogen into methane as fuel, is one of the promising candidates for the development of CO2 utilization technologies. Recently, a highly active catalyst made of Ni/ZrO2 for methanation has been developed, and is currently investigated as a potential use in a high-performance reactor. However, design of reactor must be carried out carefully, since this reaction is highly exothermic, which may cause reactor runaway and deterioration of catalysts. For this problem, a mathematical model that can predict the behavior inside the reactor is necessary. In this work, we consider the methanation reaction of CO2 in a reactor model and estimate the kinetic parameters in the reaction rate model from experimental data. In the parameter estimation using literature values and Tikhonov regularization, eight kinetic parameters in the rate equations were identified from 64 data points with a wide range of conditions. We confirm that molar fractions at the reactor exit predicted by this reactor model are in good agreement with the experimental results. Furthermore, the developed model was validated to predict the compositions and temperature that were not used in the estimation. We expect the developed model will be a powerful tool for the reactor design.

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  20. New Data Processing Method for Heavy Oil Components Analyzed by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry Reviewed

    KATANO Keita, SUZUKI Teruo, MATSUMOTO Kotaro, KATO Hiroshi, NORINAGA Koyo

    Journal of the Japan Petroleum Institute   Vol. 66 ( 4 ) page: 101 - 108   2023

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    <p>A data processing method to automatically assign molecular formulae and correct the abundances was developed and used to improve the reliability and quantitative accuracy of data obtained via Fourier transform ion cyclotron resonance mass spectrometry. The technique was utilized to analyze fractions of atmospheric residue, and assigned molecular formulae for each fraction. The algorithm automatically identified nearly 20,000 heavy oil components. The reliability of the data processing technique was demonstrated by absolute mean mass errors in the range of 0.15-0.23 ppm. Distillation simulation was used to correct the abundances of assigned molecular formulae. The distillation properties were estimated from the molecular formulae, and corrections made to match the simulated results within 1 wt%. The correction factor indicated that lower boiling point components tended to require higher correction factors, suggesting that the ion transport efficiency of the instrument becomes lower in the lower molecular weight region.</p>

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  21. Changes in Intermolecular Interaction Forces Inducing Glass Transition Determined by Three-Dimensional Aggregated Structural Models of Coal Reviewed

    Hata Yuki, Hayashizaki Hideyuki, Matsuzaki Yoichi, Morimoto Masato, Takanohashi Toshimasa, Takahashi Takafumi, Kanehashi Koji, Norinaga Koyo

    ISIJ International   Vol. 63 ( 9 ) page: 1433 - 1440   2023

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    <p>The three-dimensional aggregated structural models of two types of coals, A and B, were constructed. It is found that the density and the <i>T</i><sub>g</sub> of the models were qualitatively consistent with values obtained experimentally. The <i>T</i><sub>g</sub> of coals A and B calculated using the model structures are 315°C and 328°C, respectively. The effect of temperature on the distribution of cohesive energy was quantitatively elucidated using the three-dimensional aggregated structural models. The cohesive energy density (CED) of coal B was greater than that of coal A at temperatures <<i>T</i><sub>g</sub>. However, at temperatures ><i>T</i><sub>g</sub>, the CED of coal A is comparable to that of coal B. This implies that the molecules are more strongly aggregated in coal B than in coal A at low temperatures due to hydrogen bonding, and the intermolecular interaction is considered to have gradually relaxed above the <i>T</i><sub>g</sub>. It is concluded that differences in the molecular and cohesive structures of the coals led to differences in the distribution of van der Waals energy and electric energy at different temperatures. The van der Waals energy changed from attraction to repulsion at about 450°C and 285°C in coal A and B, respectively. Electric energy remained an attractive force as the temperature increased. The mechanism of the 13°C difference in the calculated <i>T</i><sub>g</sub> of each coal can be explained by the temperature change in the intermolecular force distribution. Therefore, this three-dimensional aggregated structural model can be used to understand the thermal behavior of aggregated molecules, such as coal thermoplasticity.</p>

    DOI: 10.2355/isijinternational.ISIJINT-2022-547

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  22. Experimental Study on Quantitative Evaluation of Transferable Hydrogen in Possible Raw Materials for Metallurgical Cokes Including Bituminous, Sub-bituminous, Lignite Coals and Biomass Reviewed

    Zhang Lijuan, Uehara Yusuke, Nakamura Maki, Choi Cheolyong, Liu Chong, Machida Hiroshi, Hayashizaki Hideyuki, Kawai Yuya, Hata Yuki, Norinaga Koyo

    ISIJ International   Vol. 63 ( 9 ) page: 1441 - 1450   2023

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    <p>Researchers have thoroughly studied coal pyrolysis over a long period, while the analysis of volatile evolution and the chemical structural changes of solid char were carried out individually in most of the studies. In this work, we quantified the chemical reactions to explain the different physical phenomena, such as softening and caking properties, exhibited by different ranks of coals during pyrolysis. Four typical carbonaceous feedstocks (bituminous, sub-bituminous, lignite coals, and biomass) were selected as test samples. The authors analyzed the generated gas during pyrolysis by using a quadrupole mass spectrometer (Q-MS) and the chemical structure of the pyrolyzed char via spectroscopic methods (NMR, FT-IR, CHNS, and XPS) to gain new insights into the pyrolysis mechanism of the carbonaceous feedstocks. Transferable hydrogen was introduced to define the hydrogen used to stable the free radicals formed during pyrolysis, which can be obtained by quantifying the conversion routes of hydrogen. The hydrogen released for the growth of aromatic clusters has three pathways, namely, (1) consumption by the hydrodeoxygenation reaction to produce pyrolytic vapor, (2) release as gaseous H<sub>2</sub>, and (3) transferable hydrogen. The calculation shows that the amount of transferable hydrogen during pyrolysis decreases as the coal rank gets lower. For pyrolysis up to 500°C, the amount of transferable hydrogen is 3.96, 2.32, and 1.36 mol/kg-coal for bituminous, sub-bituminous, and lignite coals, respectively. On the other hand, the transferable hydrogen of biomass needs to be further considered in terms of the effect of cellulose and hemicellulose’s structure.</p>

    DOI: 10.2355/isijinternational.ISIJINT-2022-517

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  23. Large-eddy simulation of the non-adiabatic reforming process of hot coke oven gas using a flamelet-based approach

    YU Panlong, YADAV Sujeet, HU Yong, KAI Reo, NORINAGA Koyo, KUROSE Ryoichi, WATANABE Hiroaki

    Journal of Thermal Science and Technology   Vol. 18 ( 2 ) page: 23-00279 - 23-00279   2023

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    <p>Large-eddy simulation (LES) coupling with a non-adiabatic flamelet progress variable (NA-FPV) approach with reconstructed flamelet chemistry states is employed to simulate the hot coke oven gas (HCOG) reforming process. In the NA-FPV model, the chemistry states are first computed based on the correction factor for enthalpy defects and then modified by substituting the species statistics in the maximum heat loss state with those of less heat release to compensate for the unphysical results. The numerical results of LES coupling this NA-FPV model have been compared with the experimental measurement data in terms of temperature and yields, and reasonable agreements have been achieved. According to the LES results, it is seen O<sub>2</sub> only participates in the combustion process in the upper stream and the combustion process which mainly consumes H<sub>2</sub> and CO is to provide the other reforming process with heat and steam. In the upper and middle streams, the main HCOG jet is wrapped by the swirling high-temperature combustion products, and the reforming process primarily takes place by consuming CH<sub>4</sub>, polycyclic aromatic hydrocarbons (PAHs), and steam, while considerable H<sub>2</sub>, CO, and CO<sub>2</sub> are produced. It is observed that accompanying the reforming process C<sub>2</sub>H<sub>2</sub> is generated and it peaks in the middle stream, thus it is considered soot is formed in the complex reactions.</p>

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  24. Development of a kinetic model for CO<sub>2</sub> methanation over a commercial Ni/SiO<sub>2</sub> catalyst in a differential reactor Reviewed

    Khuenpetch, A; Choi, C; Reubroycharoen, P; Norinaga, K

    ENERGY REPORTS   Vol. 8   page: 224 - 233   2022.12

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    Development of a kinetic model for CO2 methanation over a commercial nickel catalyst was performed to consider pathways of CO2 conversion via Sabatier and RWGS reactions. H2/CO2 ratio in the feed gas composition was varied at the stoichiometry of the Sabatier reaction assuming a fictitious CO2 conversion of 0 to 0.7. Non-stochiometric gas feeding and the addition of product gases, i.e., methane and steam, were also considered to examine reaction orders and inhibition effects. The kinetic tests were carried out at 300–350 °C and 0.1–0.9 MPa. GHSV corresponded to 37,494 h−1. The stable activity was achieved by forcibly stressing the catalyst under the equilibria at 500 °C for 35 h. The kinetic measurements were conducted at an isothermal differential fixed bed reactor in the absence of heat and mass transport limitations. The methanation reaction was first fitted with the power law and LH approaches by considering the Sabatier reaction. Then, the RWGS reaction was added to consider CO formation using the power law models. The results showed a better fitting of experimental observations by using the LH expression with the formation of formyl as RDS and the power law model with inhibiting influence of water.

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  25. 1-07 Highly selective electrochemical reduction of CO<sub>2</sub> into CO achieved via indium thin-layer on zinc nanosheet over Cu foam Reviewed

    SIRISOMBOONCHAI Suchada, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 59 ( 0 ) page: 14 - 15   2022.10

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    <p>Electrochemical reduction (ECR) of CO<sub>2</sub> is one of the most promising technologies for electrification of the conversion process of CO<sub>2</sub> to obtain valuable chemicals/fuels without extreme condition requirements. Here, the performance of an electrocatalyst with the three-dimensional structure of indium thin-layer dispersed completely over Zn nanosheet structure growing on Cu/Cu foam (CF) is presented. This electrocatalyst was fabricated by electrodeposition of In and Zn over CF and exhibited a superior reduction at a Faradaic efficiency of 93.7% and an excellently long duration of 100h. Furthermore, owing to the synergy of the In thin layer, the Zn nanosheets provided a high active surface area and strong mechanical robustness during the reaction. Moreover, the InZnCu/CF catalyst presented low input energy of 2.90MWh for converting one ton of CO<sub>2</sub> into CO, that is an encouraging achievement toward a feasible large scale applications.</p>

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  26. 2-26 Evaluation of lignin conversion into valuable chemicals via hydrogenation combined with fast pyrolysis processes Reviewed

    ZHANG Lijuan, SIRISOMBOONCHAI Suchada, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 59 ( 0 ) page: 80 - 81   2022.10

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    <p>Lignin, as an important part of lignocellulosic biomass, should give more attention to promote the utilization of biomass. Being a polymer composed of phenylpropane units, lignin is regarded as a promising candidate for obtaining olefins and aromatic compounds. Herein, thermo-catalytic hydrogenation was used as a pretreatment process of lignin, after that more olefins and aromatics were obtained from the solid hydrogenated lignin via fast pyrolysis. This two-stage valorization process was techno-economically evaluated by Aspen plus and compared with the conventional fast pyrolysis process of lignin. Process simulation based on the experiment data suggested the significant economic benefit of this strategy to convert lignin into valuable chemicals, like olefins, aromatics, and phenolics.</p>

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  27. 2-06 Numerical simulation of polycyclic aromatic hydrocarbons and soot formations from coal volatiles in a Two-stage Entrained Flow Gasifier with detailed chemistry Reviewed

    LI Tailin, CHOI Cheolyong, FUKUMOTO Kazui, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 59 ( 0 ) page: 40 - 41   2022.10

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    <p>CO<sub>2</sub> recirculation in the oxy-fuel Integrated Coal Gasification Combined Cycle (IGCC) system is essential for continuous use of coal in the future. This study presents a detailed kinetic investigation into coal gasification under O<sub>2</sub>-N<sub>2</sub> and oxy-fuel (O<sub>2</sub>-H<sub>2</sub>O, O<sub>2</sub>-CO<sub>2</sub>) gasifying agents. The effects on polycyclic aromatic hydrocarbons (PAHs) and soot formation in the reductor of a two-stage entrained flow gasifier were simulated using CHEMKIN. The detailed chemical kinetic model includes 202 species, 1,351 gas-phase reactions, and 101 surface reactions. The numerical results showed that the oxy-fuel blown modes promoted tar reforming to complete elimination at 1,200°C (<1.5mg/Nm<sup><sub>3</sub></sup>). Because of a different tar conversion behavior, the O<sub>2</sub>-H<sub>2</sub>O blown mode provided a more potent tar-yield inhibition. In the case of soot formation, the amount of soot decreased under oxy-fuel blown modes. This behavior resulted from hydrogen abstraction and C<sub>2</sub>H<sub>2</sub> addition (HACA) surface growth, and nucleation rate reductions. Also, the PAHs condensation had a weak effect on the soot formation rate among different gasifying agents. This study promises a better gasification process design for a two-stage entrained flow gasifier in an oxy-IGCC system.</p>

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  28. Analysis of Low Temperature-oxidation Mechanism for Coal by Using High Resolution Solid State NMR and Gas Analysis Reviewed

    Hata Yuki, Takahashi Takafumi, Sakuragi Kiyoshi, Yamaguchi Akimasa, Saito Koji, Norinaga Koyo

    Tetsu-to-Hagane   Vol. 108 ( 10 ) page: 693 - 702   2022.10

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    <p>Spontaneous combustion property of low rank coal, an important issue in coal science, has been substantially studied. However, there are few studies discussing quantitative chemical structural changes of coal during its oxidization under 80°C.</p><p>In the present study, low rank coals of X and Y were oxidized in an adiabatic vessel where their temperature was increased due to spontaneous heating. Generated gases of H<sub>2</sub>O, CO<sub>2</sub>, and CO were analyzed by gas chromatography during the oxidization. As a result, coal Y, which was more easily oxidized than coal X, showed higher generation rate of CO<sub>2</sub> and CO gas than coal X. Some of H<sub>2</sub>O generated during the oxidation must have been remained in coal as adsorbed water since the amount of water in the oxidized coal was higher than that before oxidation.</p><p><sup>13</sup>C MAS NMR spectra of coal X and Y indicated that and chemical reaction producing carboxyl acid in coal Y is more activated than that in coal X. Furthermore, the number of aromatic carbon was reduced during the oxidization. It implied that the aromatic carbon might contribute to oxidization reaction. Coal Y before oxidation had smaller number of aromatic carbon per one cluster than coal X, while the structural parameters of aliphatic carbons in coal X and Y were almost the same. It is considered that smaller number of aromatic carbons more destabilize carbon radicals to generate “active” species. Such active carbon radicals are suggested to also react with oxygen in the atmosphere.</p>

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  29. Pretreatment of lignin by electrochemical hydrogenation to enhance the olefins and aromatic products during rapid pyrolysis Reviewed

    Zhang, LJ; Sirisomboonchai, S; Choi, C; Machida, H; Norinaga, K

    JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   Vol. 166   2022.9

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    Lignin is one of the most promising biopolymers for producing hydrocarbons and aromatic compounds in nature. Electrochemical conversion of lignin is regarded as an attractive technology for producing various aromatic chemicals which are generally derived from fossil fuels. The author reports an electrochemical approach for hydrogenating alkaline lignin (AL), which uses relatively low-cost Ni foam as a working electrode under alkali electrolyte. The primary factors (such as power input, reactor type, temperature, reaction time, catalysts, and electrode substrates) of electrochemical hydrogenation were used to control the products' yield and features. The redox characteristics of the reaction system were directly compared with the cyclic voltammetry measurement under different parameters. After electrochemical hydrogenation (ECH), rapid pyrolysis was conducted on HAL samples to investigate the influence of electrochemical reactions on lignin. The maximum olefins and aromatics yield from HAL was increased to more than three times AL, accounting for 2.22 wt% and 4.07 wt%, respectively. Then, thermogravimetric analysis (TGA), elemental analysis (EA), Fourier-transform infrared spectroscopy (FTIR), and heteronuclear single quantum coherence (HSQC) NMR were employed to characterize hydrogenated lignin samples (HAL), as well as gas chromatography–mass spectrometry (GC-MS) was conducted to investigate the oil-phase products. This work focused on this electrochemical hydrogenation coupled with rapid pyrolysis process to give a possibility that converting lignin into not only liquid oil products, but solid hydrogenated lignin can be used to produce more olefins and aromatics in rapid pyrolysis, and presented the advantages and disadvantages of this two-stage process finally.

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  30. Efficient CO<sub>2</sub> Electrochemical Reduction by a Robust Electrocatalyst Fabricated by Electrodeposition of Indium and Zinc over Copper Foam Reviewed

    Sirisomboonchai, S; Machida, H; Tran, KVB; Kawasumi, M; Norinaga, K

    ACS APPLIED ENERGY MATERIALS   Vol. 5 ( 8 ) page: 9846 - 9857   2022.8

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    Electrochemical reduction of CO2comprising the CO2reduction reactuib (CO2RR) and oxygen evolution reaction (OER) is one of the most promising technologies for electrification of the chemical process industry. Here, the performance of a electrocatalyst with a three-dimensional structure of InZnCu on Cu foam (CF) is presented. This electrocatalyst was fabricated by electrodeposition of In and Zn over Cu and exhibited a superior reduction of CO2to CO at a Faradaic efficiency of 93.7% at -0.7 V and an excellently long duration of 100 h. Due to the synergy of the thin In layer, the Zn nanosheets provided a high surface-active area and strong mechanical robustness during the reaction. Additionally, a two-electrode system was constructed based on the CF-modified surface, which provided valuable guidelines on the overall CO2RR-OER system for further evolution. Furthermore, due to the facile synthesis, the bimetal-layer double hydroxide (LDH) exhibited high conductivity and high OER performance. Hence, the two-electrode system assembled excellent electrocatalysts for the CO2RR-OER (InZnCu/CF||Cu(OH)2NWs@NiCo-LDH/CF) with high conversions of CO2to CO of 67% and 88% at 2 and 50 mA cm-2, respectively. Notably, the CO2RR-OER system exhibited excellent stability in a 40 h CO2conversion with a constant current density of 2 mA cm-2at an ultralow voltage of 1.59 V. Moreover, the calculation of the energy input converting CO per ton of CO2resulted in a low energy input range for further development in scalability. This overall CO2RR-OER proposes development in electrochemical CO2reduction for industrial applications.

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  31. Selective hydrogenation of furfural to tetrahydrofurfuryl alcohol in 2-butanol over an equimolar Ni-Cu-Al catalyst prepared by the co-precipitation method Reviewed

    Rao, TU; Suchada, S; Choi, C; Machida, H; Huo, ZB; Norinaga, K

    ENERGY CONVERSION AND MANAGEMENT   Vol. 265   2022.8

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    In order to upgrade biomass-derived platform chemicals to high value-added chemicals and liquid fuels, it is highly advantageous and desirable to synthesize suitable non-precious bimetallic catalysts that are efficient and versatile in chemical reactions. Equal moles of Ni and Cu were dispersed on varying mole ratios of Al by the co-precipitation method to synthesize Ni-Cu alloy particles to obtain a maximum yield of tetrahydrofurfuryl alcohol (THFA) by the liquid phase hydrogenation of furfural. The nickel species were active for both the furan ring (C=C) and carbonyl group (C=O) of furfural molecule, while Cu species were highly active for only the carbonyl group of furfural molecule. Systematic characterization of the prepared catalysts by XRD, TPR, STEM-EDS, and XPS analysis revealed the formation of highly active Ni-Cu alloys and near-equal Ni/Cu surface contents were achieved for the equimolar catalyst, which showcased a maximum of 98 mol% yield of THFA at 140 °C, 30 bar, 4 h. The reaction pressure and temperature showed a substantial effect on the product yield. The solvent selection also influenced the product selectivity, particularly with 2-butanol, which promoted the reaction with its hydrogen donor capacity and supported the ring hydrogenation of FAL to THFA. Moreover, the reduced Ni1Cu1-Al1 catalyst displayed good recyclability for three runs and an equal activity to that of a fresh catalyst after the regeneration.

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  32. Understanding the involved chemistry and physics toward numerically simulating the reactors for carbon resources and carbon dioxide conversions Reviewed

    NORINAGA Koyo

    Proceedings of the Annual Conference of The Japan Institute of Energy   Vol. 31 ( 0 ) page: xviii - xix   2022.7

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    <p>The recent approaches by the author and co-workers in understanding the involved chemistry and physics toward numerically simulating the chemical reactors are presented. The processes will include the gasification of solid fuels, coal tar reforming, and Sabatier reaction for producing carbon neutral synthetic methane.</p>

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  33. CFD simulation of the Sabatier process in a shell-and-tube reactor under local thermal non-equilibrium conditions: Parameter sensitivity and reaction mechanism analysis Reviewed

    Lin, YX; Zhang, W; Machida, H; Norinaga, K

    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY   Vol. 47 ( 34 ) page: 15254 - 15269   2022.4

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    The Sabatier process is a competitive technology applied for carbon capture and utilization. This process increases the risk of carbon deposition and catalyst thermal degradation because of its exothermic property. In this study, a CFD model verified through existing experimental data was established to systematically investigate the Sabatier process in a shell-and-tube reactor. The effects arising from several operating parameters (e.g., gas flow rate, feed gas composition, the thermal conductivity of catalyst pellet, the inlet temperature of cooling phase, as well as phase change refrigeration) on temperature profile and reaction performance were studied. Moreover, a mechanism of three reactions was investigated, including CO2 methanation, CO methanation, as well as RWGS reaction. Furthermore, the competition between CO2 methanation and RWGS reaction was explored. According to the further sensitivity analysis, increasing the thermal conductivity of the catalyst particles would be effective to inhibit hot spots, while keeping the carbon conversion rate unchanged.

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  34. Catalytic transfer hydrogenation of ethyl levulinate into γ-valerolactone over air-stable skeletal cobalt catalyst Reviewed

    Ren, DZ; Zhao, C; Zhang, NH; Norinaga, K; Zeng, X; Huo, ZB

    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING   Vol. 10 ( 2 )   2022.4

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    A fast and easy handled batch air diffusion method (BA) was developed to obtain a non-pyrophoric, air-stable skeletal Co catalyst (A-SCo) for catalytic transfer hydrogenation (CTH) of ethyl levulinate (EL) into γ-valerolactone (GVL). A batch air diffusion method (BA) consumed the active adsorbed H2 on the surface of skeletal Co (SCo) but maintained structure catalyst and avoided excessive oxidation of metallic Co, Ni and Al. The 96% yield of GVL was obtained over the A-SCo and HZSM-5 at 140 °C. Further study of CTH process shows that metallic state of A-SCo provides important active sites for dehydrogenation of i-PrOH, which is critical step for hydrogenation of EL. This study provides a simple, efficient method to prepare an air-stable skeletal metal catalyst for CTH and hydrogenation process.

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  35. A review of thermal catalytic and electrochemical hydrogenation approaches for converting biomass-derived compounds to high-value chemicals and fuels Reviewed

    Zhang, LJ; Rao, TU; Wang, JY; Ren, DZ; Sirisommboonchai, S; Choi, C; Machida, H; Huo, ZB; Norinaga, K

    FUEL PROCESSING TECHNOLOGY   Vol. 226   2022.2

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    Major global issues such as greenhouse gas emissions and the excessive use of fossil fuels lead to looking for sustainable and clean energy resources. Lignocellulosic biomass is a prospective resource for sustainable carbon-based energy. The production of petroleum-based green fuels, chemicals, and solvents from biomass-derived products has garnered much attention in the recent past. The study of biomass derivatives hydrogenation improves the efficiency of generating high-value chemicals and provides much-needed insights into the primary reaction mechanism for the effective utilization of raw constituents or biomass. However, the existing thermochemical conversions of biomass and biomass-derived products such as thermal catalytic hydrogenation (TCH) involve energy-intensive and expensive processes. In this regard, sustainable energy generation attracts alternative conversion technologies, including electrochemical conversion (ECC), electrocatalytic hydrogenation (ECH), and photocatalytic conversions that can be directly integrated with renewable wind/solar technologies and operated at ambient or lower temperatures. The role of electrocatalyst and electrolyte is pivotal to achieve efficient and selective ECH of biomass organics. This review paper summarizes the utilization of TCH and ECH processes on cellulose/hemicellulose, lignin, and their derivatives/model compounds, including catalyst types, reaction conditions, hydrogenation efficiency, and technical limitations. The advantages and disadvantages of the two technologies for biomass utilization have also been compared, which provides a more favourable knowledge base and theoretical basis for the subsequent research work.

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  36. Durability and fire-hazardous-risk evaluation of unique phase separation solvent using high-boiling-point amine and ether Reviewed

    Maeda, N; Kishimoto, A; Machida, H; Yamaguchi, T; Yanase, K; Norinaga, K

    INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL   Vol. 114   2022.2

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    Durability and fire hazard risk evaluations were conducted to determine the process feasibility of a unique phase separation solvent with a low regeneration temperature (90 °C) consisting of an amine, ether, and a small amount of water. The results are as follows. I) The amine degradation rate of the phase separation solvent was determined to be less than 1/10 of that of monoethanolamine, which was attributed to the high oxidative resistance and low regeneration temperature of the former. II) The composition of the gas that formed in the absorber was completely out of the combustible range during the treatment of 6% oxygen-containing gas on a dry basis. Therefore, we believe that this phase separation solvent is applicable to the treatment of exhaust gas from coal-fired thermal power plants and can realize stable operation with a small amount of amine required for replenishment.

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  37. Fluctuation in diethylene glycol diethyl ether/water mixtures near the lower critical solution temperature studied by small- and wide-angle x-ray scattering and thermodynamic calculation Reviewed

    Yanase, K; Tran, KVB; Yamaguchi, T; Machida, H; Norinaga, K

    JOURNAL OF MOLECULAR LIQUIDS   Vol. 346   2022.1

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    We studied local structure of diethylene glycol diethyl ether (DEGDEE)-water mixtures near the lower critical solution temperature (LCST) by means of simultaneous small- and wide-angle x-ray scattering measurement and thermodynamic calculation based on the activity coefficient model. Long-wavelength limits of structure factors SNN(0), SCC(0), and SNC(0), which respectively represent mean square fluctuations in the particle number, the concentration, and their cross correlation, are determined from scattering intensity extrapolated to the zero scattering vector and thermodynamic quantities according to the Bhatia and Thornton formula. SNN(0) and SCC(0) exhibit maxima near critical concentration. We found that difference between partial molar volumes of water and DEGDEE essentially results in SNN(0) values being one order of magnitude larger than SCC(0) values. Further, we determined Kirkwood-Buff (KB) integrals to clarify a mixing state of the solution from a mesoscopic point of view. The KB integrals also exhibit extrema near critical concentration. These results demonstrate self-segregations of both DEGDEE and water in a nanometer length scale even at homogeneous solution states, which can be regarded as a precursor of the macroscopic phase separation. Concentration dependence of the wide-angle scattering curve suggests that the short-range structure, whose length scale is sub-nanometer, moderately changes between the intrinsic bulk structures of DEGDEE and water. Comparison of the KB integrals with those determined by the activity coefficient model using non-random two-liquid equation is presented and effects of the fluctuation on the phase behavior are discussed.

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  38. Modeling the Chemical Structures of Coals with Different Classifications Using Mean Molecular Weights

    Hata Yuki, Hayashizaki Hideyuki, Takanohashi Toshimasa, Takahashi Takafumi, Kanehashi Koji, Norinaga Koyo

    ISIJ International   Vol. 62 ( 5 ) page: 948 - 956   2022

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    <p>The chemical structure models for the extractions and residues of two types of bituminous coals, A and B, were constructed. The molecular weights of the extractions were determined via gel permeation chromatography (GPC). New standard materials with structures similar to those of coal extraction (<i>i.e.</i>, 9, 10- diphenylanthracene, 5,6,11,12-tetraphenylnaphthracene, and chemical compounds A (Mw = 811) and B (Mw = 1135), which were synthesized using the coupling reaction) were adopted for GPC in order to obtain more accurate mean molecular weights than those in literature. Furthermore, a support program for constructing chemical structure models based on <sup>1</sup>H nuclear magnetic resonance (NMR) spectra was adopted. The coal models constructed suitably indicate the differences between the types of coal. In particular, it is found that a high pyridine-insoluble fraction extracted rate, which accounts for the most significant difference between the total extracted rates for coals A and B, enhance the coking property of coal A. In addition, the cluster size in the magic solvent-insoluble fraction might affect the softening property of coal.</p>

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  39. Determination of Kinetic Parameters for CO<sub>2</sub> Methanation (Sabatier Reaction) over Ni/ZrO<sub>2</sub> at a Stoichiometric Feed-Gas Composition under Elevated Pressure Reviewed

    Choi, C; Khuenpetch, A; Zhang, W; Yasuda, S; Lin, YX; Machida, H; Takano, H; Izumiya, K; Kawajiri, Y; Norinaga, K

    ENERGY & FUELS   Vol. 35 ( 24 ) page: 20216 - 20223   2021.12

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    Methanation of CO2 using H2 obtained by renewable energy sources has been gaining attention as one of the promising options for utilizing captured CO2 and surplus power obtained when intermittent power sources such as solar and wind energy are used. Herein, kinetics of CO2 methanation over Ni/ZrO2 was studied using a tubular quartz reactor at 0.9 MPa. The Sabatier reaction (CO2 + 4H2 = CH4 + 2H2O, ΔHr298K = – 165 kJ mol–1) was carried out under stoichiometric gas feeding (CO2/H2 = 1/4 v/v to CH4/H2O = 1/2 v/v), and its reaction rate was determined. The exothermic nature of CO2 methanation and extremely high catalytic activities increased the reaction temperature to 400–600 °C even when the feed-gas temperature was as low as 250–400 °C, and the gas hourly space velocity was as high as 3 × 106 h–1. Nonlinear regression analyses based on one- and multistep kinetic models were used to investigate the reaction rates to estimate the kinetic parameters. Both models with optimized parameters can reproduce the experimentally obtained CH4 formation rates for the entire range of the feed-gas conversion with a coefficient of determination (R2) of over 0.98.

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  40. An Alternative CO<sub>2</sub> Capture with a Pressure Swing Amine Process Driven by Cryogenic Pumping with the Unused Cold Energy of Liquefied Natural Gas Reviewed

    Machida, H; Hashiride, R; Niinomi, R; Yanase, K; Hirayama, M; Umeda, Y; Norinaga, K

    ACS SUSTAINABLE CHEMISTRY & ENGINEERING   Vol. 9 ( 47 ) page: 15908 - 15914   2021.11

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    This paper presents an alternative concept of CO2 capture that can substantially reduce the energy required for CO2 capture by utilizing unused cold energy. The heat of vaporization of liquefied natural gas (LNG), of which the boiling point is 110 K, is a possible candidate for unused cold energy. This technology is based on a pressure swing amine process combined with a sublimation tank to cool CO2 released from a desorber into dry ice by exchanging the LNG cold energy. The feature of this technology is that pure CO2 is recovered mostly by a pressure swing that decreases the pressure in the desorber utilizing a cryogenic pump with CO2 sublimation instead of a mechanical pump. We developed an amine-based absorbent that can realize the proposed process for exhaust gas from a fossil fuel-fired power plant. A process simulation indicated that the required energy is as low as 0.25 GJ/ton CO2 when both the absorber and the desorber are operated at around 313 K, the desorber pressure is reduced to 1 kPa, and the sublimation tank is operated at 150 K.

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  41. The effects of nitrogen functional groups and narrow micropore sizes on CO<sub>2</sub> adsorption onto N-doped biomass-based porous carbon under different pressure Reviewed

    Luo, JY; Liu, BG; Shi, R; Guo, Y; Feng, QG; Liu, Z; Li, LQ; Norinaga, K

    MICROPOROUS AND MESOPOROUS MATERIALS   Vol. 327   2021.11

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    The biomass-derived N-doped porous carbons have been proved promising adsorbent material, due to their good CO2/N2 selectivity and excellent CO2 adsorption performance. However, many researchers simply studied the effect of nitrogen groups or narrow micropores (less than 0.7 nm) on CO2 uptake at 1 bar and ignored the role of different pressures. In this study, a promising porous carbon derived from eucalyptus bark with high CO2 adsorption capacity was prepared by urea-assisted hydrothermal and KOH activation. The obtained porous carbons were found to be mainly microporous and showed rich nitrogen content. Among the materials, at 1 bar, NPC700 exhibits high CO2 adsorption of 4.20 mmol/g and 6.98 mmol/g at 25 °C and 0 °C, respectively. Based on Grand canonical Monte Carlo (GCMC) simulation, the adsorption density and adsorption energy on graphite slit pore with different pore sizes (0.6–2.0 nm) and N-doped functional groups (pyridinic-N, pyrrole-N and graphitic-N) were calculated. And the results showed that the nitrogen functional groups played a crucial contribution on CO2 adsorption capacity at relative low pressure (0–0.16 bar). In the case of relative high pressure (0.16–1 bar), the narrow micropores volume determined the CO2 uptake capacity.

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  42. Inhibition of temperature runaway phenomenon in the Sabatier process using bed dilution structure: LBM-DEM simulation Reviewed

    Lin, YX; Yang, C; Choi, C; Zhang, W; Fukumoto, K; Machida, H; Norinaga, K

    AICHE JOURNAL   Vol. 67 ( 10 )   2021.10

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    The Sabatier process is promising for carbon dioxide utilization and energy storage. However, the serious problem that limits more comprehensive industrial applications is catalyst deactivation due to the temperature runaway phenomenon. The inert particle dilution approach, including the mixing dilution method and layered dilution method is applied to solve this problem. Based on the lattice kinetic scheme-lattice Boltzmann method (LKS-LBM), the effects of three parameters in bed dilution structure reconstructed by the discrete element method (DEM) on temperature distribution and carbon conversion rate were discussed, so as to investigate the relationship between packing structure and temperature distribution. Furthermore, numerical results indicated that an optimal bed dilution structure, which not only can control the peak temperature below the critical temperature to avoid coking and sintering of catalyst, but also can improve the conversion rate by almost 18% compared with the structure without dilution under the same circumstance.

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  43. Comprehensive Compositional Analysis of Heavy Oil Using Fourier Transform Ion Cyclotron Resonance Mass Spectrometry and a New Data Analysis Protocol Reviewed

    Katano, K; Teratani, S; Suzuki, T; Tanaka, R; Kato, H; Norinaga, K

    ENERGY & FUELS   Vol. 35 ( 17 ) page: 13687 - 13699   2021.9

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    A sequential method that deterministically estimates the molecular composition of heavy oil is reported. A sample of vacuum residua is preseparated into seven fractions: saturated (Sa), aromatic fractions containing one, two, and three or more rings (1A, 2A, and 3A+, respectively), polar and polyaromatic (Po and PA, respectively) resins, and asphaltene (As). The analysis by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) uses one of three different ionization methods depending on the type of structure. Paraffinic species in Sa are ionized by Ag cationization and laser desorption. Aromatic species in 1A, 2A, 3A+, and Po are ionized by atmospheric pressure photoionization. Poorly volatile and condensed aromatic species in PA and As are ionized by laser desorption ionization. Collision-induced dissociation (CID) is used by the FT-ICR MS instrument to determine the structural building blocks. A new data analysis protocol developed to represent petroleum molecules named the composition and structure analyzer (CSA) requires data obtained before and after CID as inputs. The CSA provides juxtaposed attributes for chemical-structure description (JACDs). Structural information based on JACDs can be used to predict physical and chemical properties such as boiling and melting points and solubility parameters and build attribute-based reaction models, to optimize heavy oil upgrading processes.

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  44. Density and Viscosity Calculation of a Quaternary System of Amine Absorbents before and after Carbon Dioxide Absorption Reviewed

    Tran, KVB; Sato, M; Yanase, K; Yamaguchi, T; Machida, H; Norinaga, K

    JOURNAL OF CHEMICAL AND ENGINEERING DATA   Vol. 66 ( 8 ) page: 3057 - 3071   2021.8

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    Viscosity and density of amine absorbents affect directly their flow, which is involved in the process design and simulation of carbon dioxide capture. A mixture of 2-(ethyl amino) ethanol (EAE), diethylene glycol diethyl ether (DEGDEE), and water changes its phase from homogeneous to two-liquid ones on CO2 absorption. It is difficult to calculate the viscosity and density of this phase separation solution, especially those of quaternary-component phases. In this research, models to calculate the density and viscosity of the quaternary-component system of EAE/DEGDEE/water/carbamate were suggested based on nonrandom two-liquid (NRTL)-DVOL and NRTL-DVIS models. Given the component concentrations, these models can replicate well the viscosity and density of the solutions. A good calculation result with a few numbers of parameters makes the models simple and easy to use.

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  45. Production of light hydrocarbons from organosolv lignin through catalytic hydrogenation and subsequent fast pyrolysis Reviewed

    Zhang, LJ; Choi, C; Machida, H; Norinaga, K

    JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   Vol. 156   2021.6

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    Valorization and utilization of lignin have been drawing increasing attention recently. Hydroprocess is one of the main technologies, which can reduce organic compounds and partially depolymerize the macromolecular structure of lignin. The mechanism of lignin hydroprocess has been extensively discussed focusing on hydrogenolysis. In contrast, the solid residue regarded as unreacted or depolymerized lignin has drawn less attention so far. This study proposes an integrated process that consists of catalytic hydrogenation and subsequent fast pyrolysis for valorizing lignin. The results showed that 48−87 wt.% of solid product could be recovered as hydrogenated lignin (H-EOL) after hydrogenation at 200–250 ℃ for 1−7 h. Chemical structure of H-EOL was comprehensively investigated by means of elemental analysis, FTIR, 13C & 1H NMR, and TGA. Furthermore, behavior of fast pyrolysis of H-EOL was detected here for the first time. H-EOL has higher hydrogen to carbon atomic effective ratio(H/Ceff ratio) and achieves the increasing reactivity of thermal decomposition. H-EOL yields light olefins double as much as raw ethanol organosolv lignin (EOL). And the formation of alkanes (C1-C4), benzene, and toluene was promoted to various degrees, while the yield of carbon monoxide, carbon dioxide, and vapor decreased. A novel and efficient pretreatment method has been provided to valorize lignin, which is instructive for subsequent research.

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  46. An Approach to Simulate Vapor Phase Reactions of Coal Volatiles in a Reducing Section of the Two Stage Entrained Flow Gasifier with a Detailed Chemical Kinetic Model

    Choi Cheolyong, Adachi Nozomi, Zhang Wei, Machida Hiroshi, Hayashi Jun-ichiro, Watanabe Hiroaki, Norinaga Koyo

    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN   Vol. 54 ( 6 ) page: 334 - 343   2021.6

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    <p>The present study further develops an approach in predicting reactions undergone by coal volatiles in a reducing section (reductor) of an air-blown two-stage entrained flow gasifier toward designing a better gasification process. A detailed chemical kinetic model was first applied to simulate chemical reactions of a complex molecular mixture of the coal volatiles evolved due to rapid pyrolysis of coal fed into the reductor. The composition of volatiles was determined based on pyrolysis-gas chromatography experiments, where 22 compounds including inorganic gases (H<sub>2</sub>, H<sub>2</sub>O, CO and CO<sub>2</sub>), light hydrocarbon gases (C<sub>1</sub>–C<sub>4</sub>) and aromatic hydrocarbons (benzene to pyrene) were identified. Gas composition at the reductor inlet was estimated by integrating the information on the experimentally obtained molecular composition of the volatiles, and the thermodynamically calculated composition of inorganic gases generated from the combustor and the coal feeding rates into reductor and combustor. Concentration profiles of the individual chemical species, as well as soot particles along with the flow direction of the reductor, were revealed by using an extended detailed chemical kinetic model involving 202 species, 1,351 gas-phase reactions and 101 surface reactions for soot formation and growth. The simulation highlighted that near-complete decomposition of tar (<1.5 mg/Nm<sup>3</sup>) regarded as a set of all aromatic hydrocarbons is likely to require operation temperature of the reductor at temperatures as high as 1,200°C, when the combustor is operated at 1,800°C.</p>

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  47. A Review on Detailed Kinetic Modeling and Computational Fluid Dynamics of Thermochemical Processes of Solid Fuels Reviewed

    Choi, C; Zhang, W; Fukumoto, K; Machida, H; Norinaga, K

    ENERGY & FUELS   Vol. 35 ( 7 ) page: 5479 - 5494   2021.4

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    This review presents the recent advances in computational approaches to understand thermochemical reactions of solid fuels with minimized empirical factors. It includes studies on kinetic modeling of gas-phase reactions of multicomponent molecular mixtures of volatiles derived from primary pyrolysis of solid fuels using a database for elementary reactions. Mechanistic studies to model the devolatilization of biomass and coal upon heating are also mentioned. The efforts to integrate the kinetic model with computational fluid dynamics to understand the flow and heat transfer behavior of industrial reactors for solid fuel conversions, including gasification and combustion, are reviewed. These advances are primarily based on the conventional forward analysis that provides a deeper understanding of chemically reacting flows of fuels undergoing thermochemical reactions. For the further development of the thermochemical conversion technology, it can be expected to develop alternative approaches such as inverse analysis to determine the optimal reactor design and operating conditions.

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  48. Catalytic hydrotreatment of alkaline lignin and its consequent influences on fast pyrolysis Reviewed

    Zhang, LJ; Choi, C; Machida, H; Huo, ZB; Norinaga, K

    CARBON RESOURCES CONVERSION   Vol. 4   page: 219 - 229   2021

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    The current state of lignin has been characterized by these three: (1) as one of the main components in lignocellulosic biomass with an abundant amount; (2) not be taken seriously but treated as a waste product; (3) underutilized due to a complex and stubborn structure. However, lignin can be a rich source for hydrocarbons and aromatic compounds when gives appropriate utilization. In this work, we have studied the hydrotreatment of alkaline lignin (AL) under relatively mild conditions and further investigated the characterization of hydrogenated lignin (HL), especially the behavior during fast pyrolysis. The recovery of the HL decreased with increasing reaction temperature from 60 wt.% to 41 wt.% in the range of 150–250 ℃. The hydrotreated products were analyzed using Elemental Analysis, FTIR (for HL) and GC–MS (for bio-oil). The HL samples were found to have a higher hydrogen/carbon atomic effective ratio (H/Ceff ratio) and a higher degree of saturation than AL. Compared to the internal structure of the lignin before and after hydrotreatment, the side chain groups were removed from AL during the process. After that, from the fast pyrolysis of HL, it was observed that more light hydrocarbons and aromatic compounds were formed than that of AL. Furthermore, fast pyrolysis in the hydrogen atmosphere revealed that more volatile fractions were released compared to the Helium atmosphere. The total olefins yield was increased for HL compared AL from 1.02 wt.% to 3.1 wt.% at 250 ℃ for 7 hours. This study of HL is instructive to some extent for the industrial utilization of lignin.

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  49. A comprehensive study on butanolysis of furfuryl alcohol to butyl levulinate using tungstated zirconia and sulfonated carbon catalysts Reviewed

    Thuppati, UR; Choi, C; Machida, H; Norinaga, K

    CARBON RESOURCES CONVERSION   Vol. 4   page: 111 - 121   2021

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    This work presents the formation of butyl levulinate, a potential fuel additive, and an excellent renewable chemical obtained by the butanolysis of furfuryl alcohol (FAL) over a solid acid catalyst. The butanolysis of furfuryl alcohol reaction is a strong function of acidity for which tungstated zirconia (WO3-ZrO2), a robust solid acid catalyst, and a sulfonated carbon catalyst were employed to produce high yields of butyl levulinate targeting a lower initial molar ratio of butanol to FAL. A maximum of 28 mol% yield of butyl levulinate was obtained with tungstated zirconia catalyst. Easily prepared sulfonated carbon catalyst at high reaction temperatures facilitated the complete conversion of reaction intermediate, 2-butoxymethylfuran (2-BMF) through which butyl levulinate was formed, and as high as 80 mol% of butyl levulinate yield was produced at an initial mole ratio of 8.5:1 of butanol to FAL. The better results of sulfonated carbon catalyst could be attributed to the presence of -SO3H, carboxylic acid, and phenolic OH groups on the carbon surface.

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  50. Durability and fire-hazardous-risk evaluation of unique phase separation solvent using high-boiling amine and ether Reviewed

    Maeda N., Kishimoto A., Machida H., Yamaguchi T., Yanase K., Norinaga K.

    15th Greenhouse Gas Control Technologies Conference 2021, GHGT 2021     2021

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    Durability and fire hazard risk evaluation were conducted to determine the process feasibility on the unique phase separation solvent with low regeneration temperature (90 °C), consisting of amine, ether, and small amount of water. The results we obtained are as follows; I) The amine degradation rate of the phase separation solvent would be less than 1/10 of that of monoethanolamine (MEA), which was contributed by its high oxidative resistant nature and low regeneration temperature. II) The gas composition formed in the absorber was completely out of combustible range and almost no accumulations of explosive compounds such as peroxides were observed when in contact with 6 % oxygen containing gas (dry base). Therefore, we believe that the phase separation solvent is applicable to the treatment of exhaust gas from coal-fired thermal power plants.

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  51. Energy analysis of CO<inf>2</inf> separation process with low energy consumption using phase separation solvent Reviewed

    Maeda N., Nakanishi K., Kishimoto A., Machida H., Yamaguchi T., Norinaga K.

    15th Greenhouse Gas Control Technologies Conference 2021, GHGT 2021     2021

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    We calculated the energy required for regeneration when the phase separation solvent solvent is applied to the treatment of exhaust gas from coal-fired power plants. This solvent is characterized by regeneration at a low temperature of less than 100°C. As a result, it was clarified that under ideal conditions with no pressure drop and no heat loss, the required energy could be suppressed to 1.5 GJ/ton-CO2 by satisfying the following conditions; i) pinch point of the heat exchanger between rich-amine and lean-amine: 1 °C, ii) water concentration of the solvent: kept at 10 wt%, iii) COP of the heat pump: 5.5. However, increase of the pinch point, increase of the water concentration, and decrease of the COP will all result in a significant increase in the required energy. Therefore, in order to realize a process with low energy consumption, it is essential to meet these design constraints.

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  52. 2-14 Investigation of methanation kinetic model by analysis considering distributions of temperature and gas composition over a catalyst bed Reviewed

    CHOI Cheolyong, YASUDA Shoya, ZHANG Wei, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 57 ( 0 ) page: 44 - 45   2020.10

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    <p>CO<sub>2</sub> methanation is expected to be an option for energy storage and supply integrated with water electrolysis using renewable energies, named power-to-gas, taking advantages of the applicability to the existing infrastructures for natural gas. There are only a few industrial-scale plants, and development of a kinetic model is essential for scaling up the methanation reactor. In this study, a kinetic model was developed for CO<sub>2</sub> methanation under three pressure conditions considered in industrial-scale plants. The rate coefficients were determined at each pressure and correlated with the total pressure. The derived model was applied to an estimation of a larger bench-scale reactor filled with a pelletized catalyst through one-dimensional packed bed simulations, in which the diffusion resistance caused by the use of the pellet was considered using a catalyst effectiveness factor. The kinetic model was able to reproduce the CO<sub>2 </sub>conversion at the exit and the temperature distribution in the catalyst bed. It revealed that formation of a side product, CO was suppressed at the entire range of reactor.</p>

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  53. 2-16 Development of Phase Separation Solvent and H<sub>2</sub> Stripping Process to Save Energy of CO<sub>2</sub> Capture Reviewed

    MACHIDA Hiroshi, HASHIRIDE Ryusei, SUZUKI Takefusa, NISHIO Hitoshi, YANASE Keiichi, Tran Khuyen, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 57 ( 0 ) page: 48 - 49   2020.10

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    <p>To develop the energy-saving CO<sub>2</sub> capture from exhaust gas, we have been studying on both absorbent and process. As an absorbent, we have developed a phase separation solvent that separates into two liquid phases during CO<sub>2</sub> absorption, and as a process, we have developed a H<sub>2</sub> stripping that supplies H<sub>2</sub> to the desorber. We will report the results of case studies with our developed solvents and processes.</p>

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  54. Online composition analysis of phase separation solvent for carbon dioxide capture using ATR-FT-IR Reviewed

    Sato M., Tran K.V.B., Yamaguchi T., Machida H., Norinaga K.

    Journal of Advanced Manufacturing and Processing   Vol. 2 ( 4 )   2020.10

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    An amine solvent that undergoes phase change after absorption of CO2 has been studied to reduce the energy consumed during the CO2 capture process. Depending on the components of the solvent, the CO2-rich phase can be separated for the regeneration step or the component in CO2-lean phase accelerates the regeneration step in the solvent that undergoes liquid-liquid phase change. Since the homogeneous solvent separates into two liquid phases after CO2 absorption, an analysis method to track the change in chemical species during the absorption process, especially at the phase separation time, is necessary to illuminate the phenomenon. To establish an online method to analyze the components of the solvent, a Fourier-transform infrared (FT-IR) spectrometer equipped with an attenuated total reflection (ATR) probe was used during the CO2 absorption of phase separation solvent composed of amine, ether, and water. The calibration samples of amines, ethers, and CO2-loaded solutions were used to develop the partial least square regression model. The consumption of reactants, as well as the formation of products, can be monitored quantitatively using the FT-IR spectra. Utilizing this information, the changes in the chemical species shed light on the phase separation mechanism of this solvent: ether was pushed out of the solvent to form a CO2-lean phase due to its hydrophobicity, while CO2 and its products along with amine and water remain in the CO2-rich phase. Without sampling, this rapid and high-accuracy method is suitable for closed processes, especially for a high-pressure process.

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  55. Rate of CO<inf>2</inf> absorption of a phase-separation absorbent Reviewed

    Esaki T., Machida H., Norinaga K.

    Journal of Advanced Manufacturing and Processing   Vol. 2 ( 1 )   2020.1

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    In this study, we evaluated the CO2 absorption characteristics of a phase-separation amine absorbent. The phase-separation absorbent consists of a 30:60:10 (by weight percent) mixture of 2-(ethylamino)ethanol, diethylene glycol diethyl ether, and water. The CO2 absorption rate of the phase-separation absorbent was measured in a lab-scale counter flow absorber. In addition, the CO2 transport phenomena in the absorber were analyzed by performing model fitting. The experimental results revealed that the CO2 absorption rates are different before and after phase separation. In fact, the overall CO2 absorption capacity coefficient after phase separation is 4.5 times higher than that obtained before phase separation. By changing the gas-liquid ratio, we obtained a CO2 recovery ratio of over 80% using the model. Thus, the absorption temperature, CO2 loading, and gas-liquid ratio can be tuned to obtain the desired CO2 recovery ratio.

    DOI: 10.1002/amp2.10033

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  56. 1-12 Numerical simulation for a CO<sub>2</sub> methanation reactor Reviewed

    Zhang Wei, Mizoguchi Risa, Machida Hiroshi, Norinaga Koyo

    Proceedings of Conference on Coal Science   Vol. 56 ( 0 ) page: 24 - 25   2019.10

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    <p>This paper reports a numerical study for a singl e shell and tube rea ctor of CO<sub>2</sub> methanation with a 1.5 m long reaction zone. A new conjugate heat transfer solver is developed based on the open-source OpenFOAM code. The newly developed solver solves the heat transfer problem as well as the reactions happen in the gas phase. The reactor is meshed with fully resolved gas, solid, and coolant regions , Two-temperature model is considered to solve the temperature of catalyst bed . The tube diam e ter is changed to investi gate the effect on the hot spot formation. The results show that the diameter of the tube is an important factor in determining the tem perature profiles of the catalyst bed as well as reacting gas. The peak t emperature of the hot spot was decreased from 980 to 770K with decreasing the tube diame ter from 32 to 14mm at a GHSV=3428h<sup>-1</sup>.</p>

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  57. 2-5 Numerical simulation of PAH reforming and soot formation in a two-stage entrained flow coal gasifier through a detailed chemical kinetic model Reviewed

    CHOI Cheolyong, ADACHI Nozomi, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 56 ( 0 ) page: 56 - 57   2019.10

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    <p>Tar evolved from coal pyrolysis contains polycyclic aromatic hydrocarbons (PAHs) that grow to soot through further aromatization in parall el with its reforming during gasification. Understanding of the chemistry and kinetics in a gasifier is important for developing low-temperature gasification. This work focused on numerical simulation of PAH reforming and soot formation in various coal typ es and gasification modes. A detailed chemical kinetic model was used for simulating a reductor of a two stage entrained flow gasifier under the gas composition determined by combination of experimental molecular composition of coal and inorganic gas compo sition at chemical equilibrium. O<sub>2</sub>/CO<sub>2</sub>-and O<sub>2</sub> /H<sub>2</sub>O-blown modes significantly reduced the yield of PAHs and the formation of soot. Growth of soot particle was dominated by acetylene addition above 1300°C, while nucleation of soot precursors and PAH condensat ion became dominant at lower temperature.</p>

    DOI: 10.20550/jiesekitanronbun.56.0_56

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  58. 1-22 Fate of hydrogen formed by growth of aromatic cluster during coal pyrolysis Reviewed

    FUKUOKA Tetsuya, CHOI Cheolyong, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 56 ( 0 ) page: 44 - 45   2019.10

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    <p>Changes in chemical structure of coal during carbonization are important factors to determine properties of softening and melting. It is believed that the caking properties are directly affected by transferable hydrogen, and its consumption lowers the degree of caking. Investigation of the fate of the hydrogen during carbonization is thus necessary for understanding the characteristics of caking. This work conducted quantitative analyses of the chemical structure of coke derived from caking and non-caking coal, together with an online gas analysis. As a result, the transferable hydrogen derived from the non-caking coal was partly consumed for decomposition of the functional groups such as ethers during carbonization, while that from the caking coal was little consumed.</p>

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  59. 1-13 Evaluation of CO<sub>2</sub> absorption and regeneration performance of low-energy phase-separation solvent Reviewed

    SUZUKI Takehiro, NISHIO Hitoshi, Tran Khuyen, YANASE Keiichi, MACHIDA Hiroshi, NORIANGA Koyo

    Proceedings of Conference on Coal Science   Vol. 56 ( 0 ) page: 26 - 27   2019.10

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    <p>Carbon dioxide capture and storage (CCS) is expected to play a role in combating global warming. Thus,</p><p>research and development are progressing around the world. However, there are limitations such as the</p><p>demonstration examples being limited to cases where the CO<sub>2</sub> capture site and storage site are close. In recent years, Carbon dioxide Capture and Utilization (CCU) using captured CO<sub>2</sub> has attracted attention.</p><p>This time, we will focus on technologies that reduce CO<sub>2</sub> and convert it into fuels and chemicals, mainly focusing on methanation. Energy saving can be achieved by integrating the CO<sub>2</sub> capture process and the CO<sub>2</sub> utilization process.</p><p>In this paper, we report the results of energy calculation in the CO<sub>2</sub> separation by the new process using the phase-separated type CO<sub>2</sub> absorbent developed so far, and the experimental results of continuous operation using this process.</p>

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  60. 1-2-2 Detailed chemical kinetic modeling for conversion characteristics of sulfur compounds in a two-stage entrained flow coal gasifier Reviewed

    ADACHI Nozomi, Choi Cheolyong, ZHANG Wei, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of the Annual Conference of The Japan Institute of Energy   Vol. 28 ( 0 ) page: 10 - 11   2019.7

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    <p>Toward developing an environmentally-friendly coal gasification process, a deeper understanding of chemistry and kinetics of reactions happening in a gasifier is of great importance. This work presents a numerical approach to predict conversion characteristics of sulfur compounds in a reductor of a two-stage entrained flow coal gasifier. A detailed chemical kinetic model consisting of 1951 reactions and 257 chemical species were used to calculate concentration profiles along with the reductor position at different gasification modes, temperature, and coal types. The sulfur compounds were mainly converted into H<sub>2</sub>S, whereas COS is a second major product at the reductor outlet and the formation is more enhanced at an O<sub>2</sub>/CO<sub>2</sub>-blowing mode than those at air-, and O<sub>2</sub>/H<sub>2</sub>O-blowing modes. The predicted total concentrations of H<sub>2</sub>S and COS are ranged between 400 and 800 ppm and agreed with the results obtained with an air-blowing 200 ton/day test coal gasification plant reported in the literature.</p>

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  61. 2-1-2 Construction of CO<sub>2</sub> methanation kinetic model based on experiment with catalyst fixed bed reactor Reviewed

    Yasuda Shoya, Machida Hiroshi, Norinaga Koyo, Takano Hiroyuki, Izumiya Koichi

    Proceedings of the Annual Conference of The Japan Institute of Energy   Vol. 28 ( 0 ) page: 32 - 33   2019.7

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    <p>Methanation CO<sub>2</sub>+4H<sub>2</sub>→CH<sub>4</sub>+2H<sub>2</sub>O discovered by Sabatier more than 100 years ago is an exothermic reaction that proceeds on a Ni-based catalyst. Catalysts with high activity and durability is now available and the research and development are currently shifting to a more practical stage including reactor design for demonstrating a large scale and a highly-efficient methanation process. This study is thus aiming at developing a global reaction model that can be applied for the numerical simulation with a computational fluid dynamics of a methanation reactor. Experiments using a catalyst fixed bed flow reactor were conducted and the rates of methanation reaction were measured under possible conditions happened at entire range of CO<sub>2</sub> conversion rates. Power law and Langmuir Hinshelwood models were used to reproduce the experimental results and the rate parameters were determined with minimizing the difference between model calculations and experimental data.</p>

    DOI: 10.20550/jietaikaiyoushi.28.0_32

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  62. Continuous monitoring of char surface activity toward benzene Reviewed

    Choi, C; Shima, K; Kudo, S; Norinaga, K; Gao, XP; Hayashi, J

    CARBON RESOURCES CONVERSION   Vol. 2 ( 1 ) page: 43 - 50   2019.4

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    Kinetics of thermal decomposition of benzene on lignite-derived char was investigated at 900 °C by applying a new method to continuously monitor the char surface activity. Benzene vapor was continuously forced to pass through a micro fixed bed of char with residence time as short as 7.6 ms, and then detected continuously by a flame-ionization detector. Results showed the presence of two different types of char surfaces; consumptive Type I surface and non-consumptive (sustainable) Type II surface. Type I surface of a partially CO2-gasified char had an capacity of carbon deposit from benzene over 20 wt%-char and an initial activity (represented by a first-order rate constant) as high as 160 s−1. Both of them decreased with increasing carbon deposit due to consumption of micropores accessible to benzene, and finally became zero leaving Type II surface that had a very stable activity with rate constant of 4 s−1. The chars without gasification had capacities of Type I surfaces smaller by two orders of magnitude than the partially gasified char, while the Type II surfaces had activities similar to that of the partially gasified char. It was found that Type II surface converted benzene into not only carbon deposit but also diaromatics and even greater aromatics. Composition of the greater aromatics was unknown because they were deposited onto the reactor wall immediately after passing through the char bed.

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  63. Effect of SiO<sub>2</sub> on loss of catalysis of inherent metallic species in CO<sub>2</sub> gasification of coke from lignite br Reviewed

    Choi, C; Ashik, UPM; Kudo, S; Uebo, K; Norinaga, K; Hayashi, J

    CARBON RESOURCES CONVERSION   Vol. 2 ( 1 ) page: 13 - 22   2019.4

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    Inherent metallic species retained by coal char or coke, such as Na and Ca, behave as catalysts in gasification. The char/coke normally contains inherent SiO2, which can react with the inherent catalysts to form silicates, resulting in catalyst deactivation over the range of pyrolysis, carbonization and gasification, and thereby reducing the char/coke reactivity. The present authors simulated the inherent catalyst deactivation experimentally by blending a Victorian lignite with SiO2, briquetting the SiO2/lignite blend, carbonizing the briquette, and then gasifying the coke with CO2. The kinetic analysis of the gasification employed a comprehensive model, which assumed progress in parallel of non-catalytic and catalytic gasification. The model quantitatively described the measured kinetics of the coke gasification with different SiO2 contents over a range of coke conversion up to 99.9%. The kinetic analysis revealed that the SiO2 deactivated substantial and entire portions of the most active catalyst and its precursor, respectively, before the gasification (i.e., during the carbonization). The catalyst deactivation also occurred during the gasification, but mainly following a self-deactivation mechanism that involved no silicates formation.

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  64. An approach for quantifying transferable hydrogen in pyrolyzing coals Reviewed

    Norinaga K., Fukuoka T., Machida H., Zhang W.

    36th Annual International Pittsburgh Coal Conference: Clean Coal-Based Energy/Fuels and the Environment, PCC 2019     2019

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  65. Reducing energy required for CO<inf>2</inf> separation and recovery process by employing phase separation solvents Reviewed

    Norinaga K., Nishio H., Khuyen T., Machida H.

    36th Annual International Pittsburgh Coal Conference: Clean Coal-Based Energy/Fuels and the Environment, PCC 2019     2019

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  66. An approach for quantifying transferable hydrogen in pyrolyzing coals Reviewed

    Norinaga K, Fukuoka T, Machida H, Zhang W

    36th Annual International Pittsburgh Coal Conference: Clean Coal-Based Energy/Fuels and the Environment, PCC 2019     2019

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  67. Reducing energy required for CO<inf>2</inf> separation and recovery process by employing phase separation solvents Reviewed

    Norinaga K, Nishio H, Khuyen T, Machida H

    36th Annual International Pittsburgh Coal Conference: Clean Coal-Based Energy/Fuels and the Environment, PCC 2019     2019

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  68. Prediction of hot coke oven gas reforming by LES coupled with the extended flamelet/progress variable approach Reviewed

    Panlong Yu, Koyo Norinaga, Hiroaki Watanabe, Toshiaki Kitagawa

    Fuel   Vol. 231   page: 234 - 243   2018.11

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    Large-eddy simulation (LES) coupled with the extended flamelet/progress variable approach (EFPV) has been performed to predict characteristics of reacting flows in a bench-scale hot coke oven gas (HCOG) reformer. In order to investigate the capability of capturing effects of operating conditions, simulations were carried out in two different cases in which the coke oven gas temperature and oxygen ratio were altered. Results showed that the LES coupled with the EFPV performed very well in terms of predicting temperature distribution as well as the temperature variation trend between the two cases. In addition, major species such as H2, CO, CO2, H2O and CH4, as well as minor species like benzene and some typical polycyclic aromatic hydrocarbons (PAH) were analyzed to illustrate their activities and dominant chemical events. With regards to the composition of the dry reformed gas, comparisons were made between the experimental data and the numerical simulation results, and reasonable results have been obtained. It has been confirmed that the general feature of the reacting flows in the HCOG reformer can be precisely captured by the present LES.

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  69. No.2-19 Reducing energy required for CO<sub>2</sub> separation/recovery process by employing amine/ether mixed absorbent Reviewed

    MACHIDA Hiroshi, NISHIO Hitoshi, KHUYEN Tran, NORIANGA Koyo, ESAKI Takehiro

    Proceedings of Conference on Coal Science   Vol. 55 ( 0 ) page: 84 - 85   2018.10

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    <p>It has been recognized that the CO<sub>2</sub> separation and recovery process accounts around 60% of the total cost for operating CO<sub>2</sub> capture and storage (CCS). The CO<sub>2</sub> chemical absorption with a conventional amine solvent like monoethanol amine requires around 4 GJ/t-CO<sub>2</sub> for CO<sub>2</sub> recovery. Recently we developed phase separation solvent system which consists of not only amine but also hydrophobic solvent, ether. This system, before CO<sub>2</sub> absorption, we have single phase, while after CO<sub>2</sub> absorption, we have phase separation, one is CO<sub>2</sub> rich phase and the other is CO<sub>2</sub> lean phase. We can expect that the energy can significantly be reduced because it is not necessary to regenerate whole solvent but only the CO<sub>2</sub> rich phase is to be regenerated. In this study, we examined the phase phenomena for 9 types of amine and a hydrophobic solvent mixture before and after CO<sub>2</sub> absorption to find phase separation solvent system to minimize energy for CO<sub>2</sub> recovery. Based on the observation, the mechanism for the phase separation and solvent regeneration is also discussed.</p>

    DOI: 10.20550/jiesekitanronbun.55.0_84

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  70. No.2-30 Chemical structure of coal and pyrolysis char and Quantitative evaluation of gas generation characteristics during pyrolysis Reviewed

    FUKUOKA Tetsuya, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science   Vol. 55 ( 0 ) page: 110 - 111   2018.10

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    <p>Changes in the chemical structure of coal during the dry distillation process and the composition and production characteristics of volatile components are important factors related to the mechanism of caking property development and the physical properties of coke masses and analyzed by various methods. However, up to now, analysis of volatile components and structural analysis of solid char are mostly performed individually, and it is difficult to combine both and to obtain quantitative knowledge on the thermal decomposition reaction mechanism. In this study, we tried to measure composition of dry distillation for caking coal and subbituminous coal using online gas analysis, and analyze changes of coal chemical structure using several spectroscopic methods (NMR, FT-IR, XPS etc.), integrated the obtained information to combine the former and the latter, and attempted to obtain new understanding of the coal dry distillation mechanism.</p>

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  71. Computational Study on the Thermal Decomposition of Phenol-Type Monolignols Reviewed

    Yuki Furutani, Yuki Dohara, Shinji Kudo, Jun-Ichiro Hayashi, Koyo Norinaga

    International Journal of Chemical Kinetics   Vol. 50 ( 4 ) page: 304 - 316   2018.4

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    A detailed chemical kinetic model has been developed to theoretically predict the pyrolysis behavior of phenol-type monolignol compounds (1-(4-hydroxyphenyl)prop-2-en-1-one, HPP
    p-coumaryl alcohol, 3-hydroxy-1-(4-hydroxyphenyl)propan-1-one, HHPP
    1-(4-hydroxyphenyl)propane-1,3-diol, HPPD) released from the primary heterogeneous pyrolysis of lignin. The possible thermal decomposition pathways involving unimolecular decomposition, H-addition, and H-abstraction by H and CH3 radicals were investigated by comparing the activation energies calculated at the M06–2X/6–311++G(d,p) level of theory. The results indicated that all phenol-type monolignol compounds convert to phenol by side-chain cleavage. p-Coumaryl alcohol decomposes into phenol via the formation of 4-vinylphenol, whereas HPP, HHPP, and HPPD decompose into phenol via the formation of 4-hydroxybenzaldehyde. The pyrolytic pathways focusing on the reactivity of the hydroxyl group in HPP and producing cyclopentadiene (cyc-C5H6) were also investigated. The transition state theory (TST) rate constants for all the proposed elementary reaction channels were calculated at the high-pressure limit in the temperature range of 300–1500 K. The kinetic analysis predicted the two favorable unimolecular decomposition pathways in HPP: the one is the dominant channel below 1000 K to produce cyc-C5H6, and the other is above 1000 K to yield phenol (C6H5OH).

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  72. CO2 Gasification of Sugar Cane Bagasse: Quantitative Understanding of Kinetics and Catalytic Roles of Inherent Metallic Species Reviewed

    Zayda Faizah Zahara, Shinji Kudo, Daniyanto, U. P.M. Ashik, Koyo Norinaga, Arief Budiman, Jun-Ichiro Hayashi

    Energy and Fuels   Vol. 32 ( 4 ) page: 4255 - 4268   2018.4

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    A total of 18 chars from the pyrolysis of six trios of sugar cane bagasses (SCBs
    original, water-washed, and acid-washed) were gasified with CO2 at 900 °C, aiming at a quantitative description of the rate of gasification catalyzed by inherent metallic species and a correlation of the catalytic activity and its change during the gasification with the metallic species composition. The measured kinetics was described quantitatively over a range of char conversion, 0-0.999, by a model that assumed progress in parallel of the catalytic gasification and non-catalytic gasification, together with the presence of a catalytic precursor and three to four types of catalysts having different activities and deactivation characteristics. A series of regression analyses was scrutinized and reached expression of initial catalytic activity as a linear function of Na, K, Ca, Fe, and Si concentrations in the char with a correlation factor (r2) of &gt
    0.98. The catalyst precursor contributed fully by water-soluble Na, K, and Ca. Si was responsible for the catalyst deactivation during the pyrolysis but not during the gasification. The chars produced from original SCBs followed a linear relationship between the initial catalytic deactivation rate and initial activity (r2 &gt
    0.99), while such a linear relationship was not valid for those formed from the water-washed SCBs. This was explained mainly by more rapid deactivation of the Fe catalyst in the chars from water-washed SCBs than that in the chars formed from the original SCBs. Na and K in char from the original SCBs, originating from the water-soluble SCBs, chemically interacted with the Fe catalyst, slowing its deactivation.

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  73. Energy-saving CO<inf>2</inf> Capture Process Using Phase Separation Type Solvent by Aqueous (amine + ether) Solution Reviewed

    Machida H., Takehiro E., Yamaguchi T., Norinaga K., Kishimoto A., Akiyama K., Nishimura M.

    GHGT 2018 - 14th International Conference on Greenhouse Gas Control Technologies     2018

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    We have developed the phase separation solvent for CO2 capture. Our developed solvent consists amine, organic solvent and water and shows single liquid phase before CO2 absorption though it shows two liquid phases after CO2 absorption. Feature of phase separation solvent is reducing temperature difference between absorber and stripper. We apply the heat pump system for CO2 separation and evaluate the energy consumption. Low temperature swing process saves energy requirement for CO2 capture process with highly-effective reaction-heat recovering. To evaluate the CO2 capture system with our solvent, screening test for amine and organic solvent combination and CO2 solubility measurement were examined. In the phase separation test, three types of solvents were obtained by combining amine and ether, that is, no phase separation with CO2 scrubbing, phase separation with CO2 scrubbing, and thoroughly immiscible. The phase behaviour depends on the hydrophobicity of amines or organic solvents, and the types of solvents were classified using the hydrophobic parameter.

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  74. Current situation and future scope of biomass gasification in Japan

    Furutani, Y, Norinaga, K, Kudo, S, Hayashi, J.-I, Watanabe, T

    Evergreen   Vol. 4 ( 4 ) page: 24 - 29   2017.12

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    In this study, we investigated current situation of biomass gasification plants in 5 cities (c.a. Murayama City, Chichibu City, Ueno Village, Oshu City and Yamaguchi City) in Japan, and make R&D policy proposals to expand the biomass gasification plants. Four cities have commonly promoted the efficient heat utilization such as snow melting, drying the wood and supplying hot water into mushroom bed and hot spring. However, heat utilization is limited in a small area because heat loss is generated during the long-distance transportation. In order to obtain energy forms suitable for the long-distance transportation, such as hydrogen gas and electricity, the R&D of biomass gasification with hydrogen production or combined with Solid Oxide Fuel Cell (SOFC) should be promoted in the future.

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  75. 7-2-4 Development of energy-saving CO<sub>2</sub> capture process using phase separation absorbent Reviewed

    MACHIDA Hiroshi, ESAKI Takehiro, YAMAGUCHI Tsuyoshi, HORIZOE Hirotoshi, NORINAGA Koyo, KISHIMOTO Akira, MATSUOKA Akira, AKIYAMA Katsuya, NISHIMURA Makoto

    Proceedings of the Annual Conference of The Japan Institute of Energy   Vol. 26 ( 0 ) page: 228 - 229   2017

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    <p>Phase separation type CO<sub>2</sub> capture solvent was developed which transforms into two liquid phases after CO<sub>2</sub> absorption. At first, we checked the phase phenomena of 9 types of amine and 3 types of polyether combinations. There shows three types; keeping one liquid phase before and after CO<sub>2</sub> absorption, transforming into two liquid phase after CO<sub>2</sub> absorption, forming initially two liquid phases. CO<sub>2</sub> solubility of the developed phase separation solvent was measured. The results show that the phase separation solvent can reduce the temperature difference between absorber and desorber than that of conventional amine solvent. Required energy for CO<sub>2</sub> capture using phase separation solvent was estimated under 2.0 GJ/ton-CO<sub>2</sub>.</p>

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  76. P-3-3 Detailed Chemical Kinetic Modeling of Primary and Secondary Pyrolysis of Lignin Reviewed

    FURUTANI Yuki, DOHARA Yuki, KUDO Shinji, HAYASHI Jun-ichiro, NORINAGA Koyo

    Proceedings of the Annual Conference of The Japan Institute of Energy   Vol. 26 ( 0 ) page: 268 - 269   2017

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    <p>A set of lignin pyrolysis processes involving primary pyrolysis and secondary vapor-phase reactions were described with a detailed chemical kinetic model (DCKM). The DCKM of primary pyrolysis, which characterizes lignin structures as three model compounds, predicted the yields of volatiles (c.a. 22 gas species and 10 monolignols) derived from primary pyrolysis. The original DCKM of secondary vapor-phase reactions did not involve the kinetic database on vapor-phase reaction of monolignols. Thus, the pyrolytic pathways of 1-(4-hydroxy-3,5-dimethoxyphenyl)prop-2-en-1-one (HDPP) accounted for 60 - 80 wt% of total monolignol species were proposed, and total 230 elementary reaction rate constants obtained by ab initio theory were added into the original kinetic database. The simulation of secondary vapor-phase reaction was performed using the volatile composition predicted by the DCKM of primary pyrolysis as a boundary condition. The established kinetic models successfully reproduced the yields of H<sub>2</sub>O and char, but at high temperature overestimated tar yield and underestimated CO yield. This is probably due to the insufficient kinetic model of the secondary vapor phase reaction, which did not include the decomposition pathways of the monolignols except for HDPP.</p>

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  77. A Supported Ni Catalyst Produced from Ni-Al Hydrotalcite-Like Precursor for Reduction of Furfuryl Alcohol to Tetrahydrofurfuryl Alcohol by NaBH<sub>4</sub> in Water Reviewed

    Ren, DZ; Wang, JY; Jiang, XL; Song, ZY; Norinaga, K; Huo, ZB

    CHEMISTRYSELECT   Vol. 6 ( 4 ) page: 551 - 556   2021.1

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    Tetrahydrofurfuryl alcohol (THFA) is a kind of high value-added compound in industry, which can be obtained from biomass chemical engineering. However, Synthesis of THFA under mild condition with green hydrogen donors remains a big challenge. In this article, a supported Ni catalyst derived from Ni−Al hydrotalcite-like compounds (HTs) as precursors for the reduction of furfuryl alcohol (FA) into THFA with NaBH4 as reducing agent in water was first reported. As a result, Ni/Al2O3−HT exhibited high catalytic activity for the transformation, and THFA was achieved in 100 % yield at 60 °C for 60 min. Moreover, Ni/Al2O3−HT could be recycled at least seven times without the loss of its activity. Under optimized conditions, the reduction reaction of several furan and ketone compounds was investigated. A possible mechanism for the reduction of FA to afford THFA was also proposed.

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  78. Lattice Boltzmann simulation of multicomponent reaction-diffusion and coke formation in a catalyst with hierarchical pore structure for dry reforming of methane Reviewed

    Lin, YX; Yang, C; Choi, CY; Zhang, W; Machida, H; Norinaga, K

    CHEMICAL ENGINEERING SCIENCE   Vol. 229   2021.1

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    In order to further enhance catalytic activity and inhibit carbon formation, the hierarchical structure-performance relationship has been investigated in dry reforming of methane (DRM). A modified random generation of macro-mesopores (RGMMP) algorithm was adopted to model the structure of the catalyst with macropore and mesopore. Based on multi-component non-continuum reaction-diffusion lattice Boltzmann model, the effects of three hierarchical pore geometrical parameters, namely the catalyst porosity, the ratio of mesopore volume to macropore volume and the ratio of average macropore diameter to average mesopore diameter, on coke formation and catalytic performance were investigated to elucidate the deactivation and reaction-diffusion mechanism of the catalyst in DRM. Based on the competitive relationship between heterogeneous reaction and intraparticle diffusion, the optimal values to define hierarchical pore structure have been identified, which provides maximum catalytic performance and coking resistance for a reaction condition.

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  79. Prediction of Phase Behavior of CO<sub>2</sub> Absorbents Using Conductor-like Screening Model for Real Solvents (COSMO-RS): An Approach to Identify Phase Separation Solvents of Amine/Ether/Water Systems upon CO<sub>2</sub> Absorption Reviewed

    Nakaoka, M; Tran, KVB; Yanase, K; Machida, H; Norinaga, K

    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   Vol. 59 ( 42 ) page: 19020 - 19029   2020.10

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    Developing energy-saving absorbents for carbon dioxide (CO2) is essential for improving carbon capture and storage (CCS) technologies. Recently, we have designed phase separation solvents, which can significantly reduce the regeneration energy for CO2 capture and separation down to 1.6 GJ/ton-CO2 [ Machida, H.; et al. Int. J. Greenhouse Gas Control2018, 75, 1-7 ]. For further developing better solvents, this paper studied a theoretical approach with conductor-like screening model for real solvents (COSMO-RS) to screen the amine/ether/water systems to identify phase separation solvents upon CO2 absorption. In this work, liquid-liquid equilibria of 21 amine/ether/water systems were determined both before and after CO2 absorption. Experimentally, it has already been demonstrated that the phase behavior of these systems is classified into three categories: phase separation type, miscible type, and immiscible type. This study demonstrates that the octanol/water partition coefficient is empirically able to search for a combination of amine and ether compounds, in which the system exhibits the phase separation behavior by absorbing CO2. The COSMO-RS calculations successfully reproduced experimental phase behavior with a rate of agreement of more than 80% by accounting the following two factors: (i) ion pairing for the description of the association/dissociation state for ionic species and (ii) relevant low-lying conformations of ether and amine, which are rationalized by experiments such as conductivity and excess enthalpy measurements. Moreover, we also validated the ability of the COSMO-RS calculation to qualitatively describe the compositions of 2-(ethylamino)ethanol, diethylene glycol diethyl ether, and water in CO2-rich and CO2-lean phases at varying CO2 loading conditions.

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  80. 水素を用いた省エネルギー CO₂ 回収技術

    町田洋, 柳瀬慶一, チャンクウィン, 山口毅, 則永行庸

    クリーンエネルギー   Vol. 29 ( 10 ) page: 17 - 22   2020.10

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  81. 水素を用いた省エネルギー CO₂ 回収技術 Invited Reviewed

    町田洋, 柳瀬慶一, チャンクウィン, 山口毅, 則永行庸

    クリーンエネルギー   Vol. 29 ( 10 ) page: 17 - 22   2020.10

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  82. メタネーション大規模実証に向けた基盤研究およびCO2分離回収と利用の統合プロセスに関する研究開発

    則永 行庸、張 煒、チェ チョルヨン、柳瀬 慶一、チャン クウィン、町田 洋

    Adsorption News   Vol. 34 ( 2 ) page: 18 - 22   2020.7

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  83. メタネーション大規模実証に向けた基盤研究およびCO2分離回収と利用の統合プロセスに関する研究開発 Invited Reviewed

    則永 行庸, 張 煒, チェ チョルヨン, 柳瀬 慶一, チャン クウィン, 町田 洋

    Adsorption News   Vol. 34 ( 2 ) page: 18 - 22   2020.7

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  84. Energy-Saving CO2 Capture by H-2 Gas Stripping for Integrating CO2 Separation and Conversion Processes Reviewed

    Machida Hiroshi, Esaki Takehiro, Yamaguchi Tsuyoshi, Norinaga Koyo

    ACS SUSTAINABLE CHEMISTRY & ENGINEERING   Vol. 8 ( 23 ) page: 8732 - 8740   2020.6

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    DOI: 10.1021/acssuschemeng.0c02459

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  85. Carbon Dioxide Absorption Heat in Liquid-Liquid and Solid-Liquid Phase-Change Solvents Using Continuous Calorimetry Reviewed

    Tran Khuyen V. B, Ando Ryuya, Yamaguchi Tsuyoshi, Machida Hiroshi, Norinaga Koyo

    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   Vol. 59 ( 8 ) page: 3475 - 3484   2020.2

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    DOI: 10.1021/acs.iecr.9b04672

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  86. Computational fluid dynamics simulation of CO2 methanation in a shell-and-tube reactor with multi-region conjugate heat transfer Reviewed

    Zhang Wei, Machida Hiroshi, Takano Hiroyuki, Izumiya Koichi, Norinaga Koyo

    CHEMICAL ENGINEERING SCIENCE   Vol. 211   2020.1

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  87. Modelling of CO<inf>2</inf> solubility in phase separation solvent composed of amine/ether/water system for CO<inf>2</inf> capture Reviewed

    Machida, H., Ando, R., Esaki, T., Yamaguchi, T., Norinaga, K.

    Journal of Molecular Liquids   Vol. 292   2019.10

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    DOI: 10.1016/j.molliq.2019.111411

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  88. Quantitative Description of Catalysis of Inherent Metallic Species in Lignite Char during CO2 Gasification Reviewed

    Halim Nurulhuda, Ashik U. P. M, Gao Xiangpeng, Kudo Shinji, Sanwani Edy, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 33 ( 7 ) page: 5996 - 6007   2019.7

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    DOI: 10.1021/acs.energyfuels.9b00465

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  89. Quantitative Analyses of Chemical Structural Change and Gas Generation Profile of Coal upon Heating toward Gaining New Insights for Coal Pyrolysis Chemistry Reviewed

    Fukuoka Tetsuya, Takeda Norihiro, Zhang Lu, Machida Hiroshi, Zhang Wei, Watanabe Masahiko, Nishibata Yuko, Hayashi Jun-ichiro, Norinaga Koyo

    ISIJ INTERNATIONAL   Vol. 59 ( 8 ) page: 1376 - 1381   2019

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    <p>Chemical structure of coal is evolutionary changed during pyrolysis that accompanies gas release. The chemical structural change and gas formation profiles play important roles in determining caking property and physical properties such as strength and size of the resultant coke. However, analyses of volatile components and structural analysis of solid char have been mostly performed individually, and it is difficult to combine both and to obtain quantitative understanding on the thermal decomposition of coal at mechanistic level. In this study, simultaneous analyses of solid chemical structures of the heat treated coals and gas formation profiles were conducted for two kinds of coals that were pyrolyzed at an identical condition. On-line gas analysis with a quadrupole mass spectrometer and spectroscopic methods (NMR and FT-IR) were employed for quantitative evaluation of gas formation characteristics and solid chemical structure, respectively. The information obtained were then integrated to acquire new insight for coal pyrolysis mechanism. Here an approach to quantify the transferable hydrogen that contributes to stabilize radicals formed in pyrolyzing coal was proposed. It includes the quantitative assessment of aromatic cluster growth, decomposition of hydroxyls, and releases of hydrogen and pyrolytic water into gas phase. The proposed approach suggested that a bituminous coal that exhibits plasticity during pyrolysis had 3.5 mol/kg-coal transferable hydrogen, whereas the amount of transferable hydrogen of the sub-bituminous coal, a non-caking coal, was 1.3 mol/kg-coal, during pyrolysis up to 500°C.</p>

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  90. Production of High-strength Cokes from Non-and Slightly Caking Coals. Part II: Application of Sequence of Fine Pulverization of Coal, Briquetting and Carbonization to Single Coals and Binary Blends Reviewed

    Uchida Kenya, Kudo Shinji, Mori Aska, Ashik U. P. M, Norinaga Koyo, Dohi Yusuke, Uebo Kazuya, Hayashi Jun-ichiro

    ISIJ INTERNATIONAL   Vol. 59 ( 8 ) page: 1449 - 1456   2019

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    <p>Sequential coal briquetting and carbonization was applied to preparation of cokes from 9 non- or slightly caking coals with carbon contents (<i>f</i><sub>C</sub>) of 67–85 wt%-daf. Coal pulverization to sizes of <106 <i>µ</i>m and briquetting at 40°C enabled to prepare cokes with tensile strength (<i>σ</i>) over 10 MPa from 4 coals with <i>f</i><sub>C</sub> of 82–85 or 67 wt%-daf. Then, by introducing fine pulverization to sizes of < 10 <i>µ</i>m before the briquetting, 7 coals were converted successfully into cokes with <i>σ</i> = 11–25 MPa. Increasing the briquetting temperature to 240°C further increased <i>σ</i> to 19–35 MPa for all the 9 coals. It was thus demonstrated that the hot briquetting of finely pulverized coal was a method to prepare high strength coke regardless of the rank of parent coal. Cokes were also prepared from 14 binary coal blends. All the cokes prepared by applying the fine pulverization and hot briquetting had <i>σ</i> of 20–35 MPa, which agreed well with that calculated by weighted average of those from the component coals. On the other hand, positive and also negative synergistic effects of blending occurred when blends were briquetted at 40°C. Characteristics of bonding/coalescence among particles of different types of coals were responsible for such synergies.</p>

    DOI: 10.2355/isijinternational.ISIJINT-2018-847

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  91. Production of High-strength Cokes from Non-/Slightly Caking Coals. Part I: Effects of Coal Pretreatment and Variables for Briquetting and Carbonization on Coke Properties Reviewed

    Matoba Masahiro, Kudo Shinji, Mori Aska, Norinaga Koyo, Uchida Kenya, Dohi Yusuke, Uebo Kazuya, Hayashi Jun-ichiro

    ISIJ INTERNATIONAL   Vol. 59 ( 8 ) page: 1440 - 1448   2019

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    <p>In continuation of the present authors’ studies on production of high strength coke from lignite by sequential binderless hot briquetting and carbonization, this study has been carried out aiming at proposing methods to produce high strength coke from non-/slightly caking coals of subbituminous to bituminous rank. This paper firstly demonstrates preparation of cokes with cold tensile strengths above 10 MPa from two single non-caking coals (particle size; < 106 <i>µ</i>m) by applying briquetting at temperature and mechanical pressure of over 200°C and 100 MPa, respectively. Such strength of coke is obtained over a wide range of heating rate, 3–30°C/min, during carbonization with final temperature of 1000°C. Then, a simple pretreatment, fine pulverization of coal to particle sizes smaller than 10 or 5 <i>µ</i>m, is examined. This pretreatment enables to prepare coke with tensile strength even over 25 MPa, by decreasing porosity of resulting coke and more extensively the size of macropores simultaneously. The coke strength changes with carbonization temperature having a particular feature; significant development of strength at 600–1000°C, <i>i.e.</i>, after completion of tar evolution, in which macropores and non-porous (dense) part of coke shrink in volume, inducing bonding and coalescence of particles and thereby arising the strength.</p>

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  92. An approach for quantifying transferable hydrogen in pyrolyzing coals Reviewed

    Norinaga K

    36th Annual International Pittsburgh Coal Conference: Clean Coal-Based Energy/Fuels and the Environment, PCC 2019     2019

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  93. Reducing energy required for CO<inf>2</inf> separation and recovery process by employing phase separation solvents Reviewed

    Norinaga K

    36th Annual International Pittsburgh Coal Conference: Clean Coal-Based Energy/Fuels and the Environment, PCC 2019     2019

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  94. An approach for quantifying transferable hydrogen in pyrolyzing coals Reviewed

    Norinaga K

    36th Annual International Pittsburgh Coal Conference: Clean Coal-Based Energy/Fuels and the Environment, PCC 2019     2019

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  95. Reducing energy required for CO<inf>2</inf> separation and recovery process by employing phase separation solvents Reviewed

    Norinaga K

    36th Annual International Pittsburgh Coal Conference: Clean Coal-Based Energy/Fuels and the Environment, PCC 2019     2019

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  96. Characteristics of gas evolution profiles during coal pyrolysis and its relation with the variation of functional groups Reviewed

    Zhang, L, Qi, S, Takeda, N, Kudo, S, Hayashi, J, Norinaga, K

    International Journal of Coal Science and Technology   Vol. 5 ( 4 ) page: 452 - 463   2018.12

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    DOI: 10.1007/s40789-017-0175-0

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  97. Effects of HZSM-5 on volatile products obtained from the fast pyrolysis of lignin and model compounds Reviewed

    Yang Huamei, Norinaga Koyo, Li Ji, Zhu Wenyou, Wang Haijun

    FUEL PROCESSING TECHNOLOGY   Vol. 181   page: 207 - 214   2018.12

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    DOI: 10.1016/j.fuproc.2018.09.022

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  98. Characteristic Properties of Lignite to Be Converted to High-Strength Coke by Hot Briquetting and Carbonization Reviewed

    Shinji Kudo, Aska Mori, Gentaro Hayashi, Takuya Yoshida, Noriyuki Okuyama, Koyo Norinaga, Jun-Ichiro Hayashi

    Energy and Fuels   Vol. 32 ( 4 ) page: 4364 - 4371   2018.4

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    A sequence of hot briquetting and carbonization (HBC) is a promising technology for the production of coke with a high mechanical strength from lignite, but factors affecting the coke strength have not yet been fully understood. The HBC cokes prepared from 12 lignites in this study showed diverse tensile strength (e.g., from 0.2 to 31.2 MPa in the preparation at 200 °C and 112 MPa for hot briquetting and 1000 °C for carbonization), and the coke strengths could not be explained by differences in commonly used structural properties of the parent lignites, such as elemental composition and contents of volatile matter/fixed carbon and ash. In this study, two methods were proposed for correlating the coke strength with the lignite properties, which employed the chemical structure analyzed by solid-state 13C nuclear magnetic resonance or the volumetric shrinkage during carbonization. A stronger coke was obtained from lignite that contained more aliphatic carbons (less aromatic carbons) or shrank more considerably. These characteristics contributed to intensified compaction of lignite in the briquetting and suppression of the formation of large pores, which are a cause of coke fracture. Two empirical equations, predicting the coke strength from the parameters of lignite properties, were established to be criteria for selection of lignite as HBC coke feedstock, although further investigation with more experimental data would be necessary for the validation.

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  99. Transient three-dimensional simulation of densification process of carbon fibre preforms via chemical vapour infiltration of carbon matrix from methane

    Tang Zhepeng, Li Aijun, Hatakeyama Tomo, Shuto Hiroki, Hayashi Jun-ichiro, Norinaga Koyo

    CHEMICAL ENGINEERING SCIENCE   Vol. 176   page: 107-115   2018.2

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    DOI: 10.1016/j.ces.2017.10.029

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  100. Theoretical Study on Elementary Reaction Steps in Thermal Decomposition Processes of Syringol-Type Monolignol Compounds

    Furutani Yuki, Dohara Yuki, Kudo Shinji, Hayashi Jun-ichiro, Norinaga Koyo

    JOURNAL OF PHYSICAL CHEMISTRY A   Vol. 122 ( 3 ) page: 822-831   2018.1

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    DOI: 10.1021/acs.jpca.7b09450

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  101. Predicting molecular composition of primary product derived from fast pyrolysis of lignin with semi-detailed kinetic model

    Furutani Yuki, Kudo Shinji, Hayashi Jun-ichiro, Norinaga Koyo

    FUEL   Vol. 212   page: 515-522   2018.1

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    DOI: 10.1016/j.fuel.2017.10.079

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  102. Current situation and future scope of biomass gasification in Japan Reviewed

    Furutani, Y, Norinaga, K, Kudo, S, Hayashi, J.-I, Watanabe, T

    Evergreen   Vol. 4 ( 4 ) page: 24-29   2017.12

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  103. Theoretical Study on the Kinetics of Thermal Decomposition of Guaiacol and Catechol

    Furutani Yuki, Dohara Yuki, Kudo Shinji, Hayashi Jun-ichiro, Norinaga Koyo

    JOURNAL OF PHYSICAL CHEMISTRY A   Vol. 121 ( 44 ) page: 8495-8503   2017.11

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    DOI: 10.1021/acs.jpca.7b08112

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  104. An approach for on-line analysis of multi-component volatiles from coal pyrolysis with Li+ -attachment ionization mass spectrometry Reviewed

    Zhang Lu, Qi Shi-Chao, Iwanaga Keita, Uemura Kazuhiro, Zhang Li-Xin, Kudo Shinji, Hayashi Jun-ichiro, Furuya Kenji, Norinaga Koyo

    FUEL PROCESSING TECHNOLOGY   Vol. 158   page: 141-145   2017.4

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    DOI: 10.1016/j.fuproc.2016.12.001

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  105. Theoretical Study on Hydrogenolytic Cleavage of Intermonomer Linkages in Lignin Reviewed

    Qi Shi-Chao, Zhang Lu, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    JOURNAL OF PHYSICAL CHEMISTRY A   Vol. 121 ( 15 ) page: 2868-2877   2017.4

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    DOI: 10.1021/acs.jpca.7b00602

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  106. Theoretical Study on Reaction Pathways Leading to CO and CO2 in the Pyrolysis of Resorcinol Reviewed

    Furutani Yuki, Kudo Shinji, Hayashi Jun-ichiro, Norinaga Koyo

    JOURNAL OF PHYSICAL CHEMISTRY A   Vol. 121 ( 3 ) page: 631-637   2017.1

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    DOI: 10.1021/acs.jpca.6b05168

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  107. Production of Levoglucosenone and Dihydrolevoglucosenone by Catalytic Reforming of Volatiles from Cellulose Pyrolysis Using Supported Ionic Liquid Phase Reviewed

    Kudo Shinji, Goto Nozomi, Sperry Jonathan, Norinaga Koyo, Hayashi Jun-ichiro

    ACS SUSTAINABLE CHEMISTRY & ENGINEERING   Vol. 5 ( 1 ) page: 1132-1140   2017.1

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    DOI: 10.1021/acssuschemeng.6b02463

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  108. Toward Low-Temperature Coal Gasiication: Experimental and Numerical Studies of Thermochemical Coal Conversion Considering the Interactions between Volatiles and Char Particles Reviewed

    Li Cheng-Yi, Zhang Li-Xin, Kudo Shinji, Hayashi Jun-Ichiro, Norinaga Koyo

    KONA POWDER AND PARTICLE JOURNAL   ( 34 ) page: 70-79   2017

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    DOI: 10.14356/kona.2017008

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  109. Nano-sized nickel catalyst for deep hydrogenation of lignin monomers and first-principles insight into the catalyst preparation Reviewed

    Qi Shi-Chao, Zhang Lu, Einaga Hisahiro, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    JOURNAL OF MATERIALS CHEMISTRY A   Vol. 5 ( 8 ) page: 3948-3965   2017

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    DOI: 10.1039/c6ta08538e

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  110. Numerical Simulation for Influence of Surface Area/Volume Ratio and Inlet Gas Pressure on Pyrolytic Carbon Texture Reviewed

    Xu Jian, Tang Zhe-Peng, Peng Yu-Qing, Gu Chuan-Qing, Norinaga Koyo, Li Ai-Jun

    JOURNAL OF INORGANIC MATERIALS   Vol. 31 ( 12 ) page: 1327-1334   2016.12

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    DOI: 10.15541/jim20150528

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  111. Experimental investigation of thermal decomposition of dihydroxybenzene isomers: Catechol, hydroquinone, and resorcinol Reviewed

    Yang Huamei, Furutani Yuki, Kudo Shinji, Hayashi Jun-ichiro, Norinaga Koyo

    JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   Vol. 120   page: 321-329   2016.7

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    DOI: 10.1016/j.jaap.2016.05.019

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  112. Kinetics and Mechanism of CO2 Gasification of Chars from 11 Mongolian Lignites Reviewed

    Byambajav Enkhsaruul, Hachiyama Yasuyo, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 30 ( 3 ) page: 1636-1646   2016.3

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    DOI: 10.1021/acs.energyfuels.5b02262

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  113. Steam-Oxygen Gasification of Potassium-Loaded Lignite: Proof of Concept of Type IV Gasification Reviewed

    Yang Hua, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 30 ( 3 ) page: 1616-1627   2016.3

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    DOI: 10.1021/acs.energyfuels.5b02258

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  114. A CFD study on the reacting flow of partially combusting hot coke oven gas in a bench-scale reformer Reviewed

    Li Chengyi, Appari Srinivas, Tanaka Ryota, Hanao Kyoko, Lee Yeonkyung, Kudo Shinji, Hayashi Jun-ichiro, Janardhanan Vinod M., Watanabe Hiroaki, Norinaga Koyo

    FUEL   Vol. 159   page: 590-598   2015.11

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    DOI: 10.1016/j.fuel.2015.07.023

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  115. Modeling of gas/particle flow in coal conversion with a drop tube reactor using a lumped kinetic model accounting volatiles-char interaction Reviewed

    Li Cheng-Yi, Appari Srinivas, Zhang Li-Xin, Huang An-Ni, Kuo Hsiu-Po, Kudo Shinji, Hayashi Jun-ichiro, Norinaga Koyo

    FUEL PROCESSING TECHNOLOGY   Vol. 138   page: 588-594   2015.10

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    DOI: 10.1016/j.fuproc.2015.06.043

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  116. Separation of phenols and ketones from bio-oil produced from ethanolysis of wheat stalk Reviewed

    Yang Hua-Mei, Zhao Wei, Norinaga Koyo, Fang Jun-Ji, Wang Yu-Gao, Zong Zhi-Min, Wei Xian-Yong

    SEPARATION AND PURIFICATION TECHNOLOGY   Vol. 152   page: 238-245   2015.9

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    DOI: 10.1016/j.seppur.2015.03.032

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  117. In-situ reforming of the volatiles from fast pyrolysis of ligno-cellulosic biomass over zeolite catalysts for aromatic compound production Reviewed

    Uemura Kazuhiro, Appari Srinivas, Kudo Shinji, Hayashi Jun-ichiro, Einaga Hisahiro, Norinaga Koyo

    FUEL PROCESSING TECHNOLOGY   Vol. 136   page: 73-78   2015.8

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    DOI: 10.1016/j.fuproc.2014.10.002

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  118. Detailed Chemical Kinetic Modeling of Vapor-Phase Reactions of Volatiles Derived from Fast Pyrolysis of Lignin Reviewed

    Yang Hua-Mei, Appari Srinivas, Kudo Shinji, Hayashi Jun-ichiro, Norinaga Koyo

    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   Vol. 54 ( 27 ) page: 6855-6864   2015.7

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    DOI: 10.1021/acs.iecr.5b01289

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  119. Kinetic modeling of non-catalytic partial oxidation of nascent volatiles derived from fast pyrolysis of woody biomass with detailed chemistry Reviewed

    Thimthong Narumon, Appari Srinivas, Tanaka Ryota, Iwanaga Keita, Kudo Shinji, Hayashi Jun-ichiro, Shoji Tetsuya, Norinaga Koyo

    FUEL PROCESSING TECHNOLOGY   Vol. 134   page: 159-167   2015.6

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    DOI: 10.1016/j.fuproc.2015.01.029

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  120. Predicting the temperature and reactant concentration profiles of reacting flow in the partial oxidation of hot coke oven gas using detailed chemistry and a one-dimensional flow model Reviewed

    Appari Srinivas, Tanaka Ryota, Li Chengyi, Kudo Shinji, Hayashi Jun-ichiro, Janardhanan Vinod M., Watanabe Hiroaki, Norinaga Koyo

    CHEMICAL ENGINEERING JOURNAL   Vol. 266   page: 82-90   2015.4

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    DOI: 10.1016/j.cej.2014.12.041

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  121. Numerical study on the steam reforming of biomass tar using a detailed chemical kinetic model Reviewed

    Narumon THIMTHONG, Srinivas APPARI, Ryota TANAKA, Keita IWANAGA, Tomoaki NAMIOKA, Shinji KUDO, Jun-ichiro HAYASHI, Koyo NORINAGA

    Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy   Vol. 94 ( 8 ) page: 794-804   2015.1

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    DOI: https://doi.org/10.3775/jie.94.794

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  122. Modification of Reactivity and Strength of Formed Coke from Victorian Lignite by Leaching of Metallic Species Reviewed

    Karnowo, Kudo Shinji, Mori Aska, Zahara Zayda Faizah, Norinaga Koyo, Hayashi Jun-ichiro

    ISIJ INTERNATIONAL   Vol. 55 ( 4 ) page: 765-774   2015

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    DOI: 10.2355/isijinternational.55.765

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  123. Pyrolysis of Lignite with Internal Recycling and Conversion of Oil Reviewed

    Huang Yong, Sakamoto Hajime, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 28 ( 11 ) page: 7285-7293   2014.11

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    DOI: 10.1021/ef501785e

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  124. Kinetics and Mechanism of Steam Gasification of Char from Hydrothermally Treated Woody Biomass Reviewed

    Bai Lei, Karnowo, Kudo Shinji, Norinaga Koyo, Wang Yong-gang, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 28 ( 11 ) page: 7133-7139   2014.11

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    DOI: 10.1021/ef5014898h

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  125. Leaching of Alkali and Alkaline Earth Metallic Species from Rice Husk with Bio-oil from Its Pyrolysis Reviewed

    Karnowo, Zahara Zayda Faizah, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 28 ( 10 ) page: 6459-6466   2014.10

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    DOI: 10.1021/ef501748h

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  126. A mechanistic study on the reaction pathways leading to benzene and naphthalene in cellulose vapor phase cracking Reviewed

    Norinaga Koyo, Yang Huamei, Tanaka Ryota, Appari Srinivas, Iwanaga Keita, Takashima Yuka, Kudo Shinji, Shoji Tetsuya, Hayashi Jun-ichiro

    BIOMASS & BIOENERGY   Vol. 69   page: 144-154   2014.10

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    DOI: 10.1016/j.biombioe.2014.07.008

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  127. Sequential Pyrolysis and Potassium-Catalyzed Steam-Oxygen Gasification of Woody Biomass in a Continuous Two-Stage Reactor Reviewed

    Oike Tomoyuki, Kudo Shinji, Yang Hua, Tahara Junya, Kim Hyun-Seok, Koto Ryo, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 28 ( 10 ) page: 6407-6418   2014.10

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    DOI: 10.1021/ef5015296

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  128. Examination of Kinetics of Non-catalytic Steam Gasification of Biomass/Lignite Chars and Its Relationship with the Variation of the Pore Structure Reviewed

    Kudo Shinji, Hachiyama Yasuyo, Kim Hyun-Seok, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 28 ( 9 ) page: 5902-5908   2014.9

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    DOI: 10.1021/ef501517n

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  129. Preparation and Steam Gasification of Fe-Ion Exchanged Lignite Prepared with Iron Metal, Water, and Pressurized CO2 Reviewed

    Kim Hyun-Seok, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 28 ( 9 ) page: 5623-5631   2014.9

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    DOI: 10.1021/ef5010418

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  130. Extended Detailed Chemical Kinetic Model for Benzene Pyrolysis with New Reaction Pathways Including Oligomer Formation Reviewed

    Kousoku Akihiro, Norinaga Koyo, Miura Kouichi

    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   Vol. 53 ( 19 ) page: 7956-7964   2014.5

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    DOI: 10.1021/ie4044218

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  131. Hydrodynamic behavior of binary mixture of solids in a triple-bed combined circulating fluidized bed with high mass flux Reviewed

    Fushimi Chihiro, Ishizuka Masanori, Guan Guoqing, Suzuki Yoshizo, Norinaga Koyo, Hayashi Jun-ichiro, Tsutsumi Atsushi

    ADVANCED POWDER TECHNOLOGY   Vol. 25 ( 1 ) page: 379-388   2014.1

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    DOI: 10.1016/j.apt.2013.06.007

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  132. Catalytic Hydrothermal Reforming of Lignin in Aqueous Alkaline Medium Reviewed

    Kudo Shinji, Hachiyama Yasuyo, Takashima Yuka, Tahara Junya, Idesh Saruul, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 28 ( 1 ) page: 76-85   2014.1

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    DOI: 10.1021/ef401557w

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  133. Low-Temperature Gasification of Biomass and Lignite: Consideration of Key Thermochemical Phenomena, Rearrangement of Reactions, and Reactor Configuration Reviewed

    Hayashi Jun-ichiro, Kudo Shinji, Kim Hyun-Seok, Norinaga Koyo, Matsuoka Koichi, Hosokai Sou

    ENERGY & FUELS   Vol. 28 ( 1 ) page: 4-21   2014.1

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    DOI: 10.1021/ef401617k

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  134. Preparation of Coke from Hydrothermally Treated Biomass in Sequence of Hot Briquetting and Carbonization Reviewed

    Kudo Shinji, Mori Aska, Soejima Ryosuke, Murayama Fusa, Karnowo, Nomura Seiji, Dohi Yusuke, Norinaga Kayo, Hayashi Jun-ichiro

    ISIJ INTERNATIONAL   Vol. 54 ( 11 ) page: 2461-2469   2014

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    DOI: 10.2355/isijinternational.54.2461

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  135. Sulfonate Ionic Liquid as a Stable and Active Catalyst for Levoglucosenone Production from Saccharides via Catalytic Pyrolysis Reviewed

    Kudo Shinji, Zhou Zhenwei, Yamasaki Kento, Norinaga Koyo, Hayashi Jun-ichiro

    CATALYSTS   Vol. 3 ( 4 ) page: 757-773   2013.12

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    DOI: 10.3390/catal3040757

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  136. Promoting gas production by controlling the interaction of volatiles with char during coal gasification in a circulating fluidized bed gasification reactor Reviewed

    Matsuoka Koichi, Hosokai Sou, Kato Yoshishige, Kuramoto Koji, Suzuki Yoshizo, Norinaga Koyo, Hayashi Jun-ichiro

    FUEL PROCESSING TECHNOLOGY   Vol. 116   page: 308-316   2013.12

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    DOI: 10.1016/j.fuproc.2013.07.017

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  137. Preparation of Coke from Indonesian Lignites by a Sequence of Hydrothermal Treatment, Hot Briquetting, and Carbonization Reviewed

    Mori Aska, Yuniati Mutia Dewi, Mursito Anggoro Tri, Kudo Shinji, Norinaga Koyo, Nonaka Moriyasu, Hirajima Tsuyoshi, Kim Hyun-Seok, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 27 ( 11 ) page: 6607-6616   2013.11

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    DOI: 10.1021/ef4016558

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  138. Detailed Kinetic Analysis and Modeling of Steam Gasification of Char from Ca-Loaded Lignite Reviewed

    Kim Hyun-Seok, Kudo Shinji, Tahara Keisuke, Hachiyama Yasuyo, Yang Hua, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 27 ( 11 ) page: 6617-6631   2013.11

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    DOI: 10.1021/ef401688h

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  139. Rapid pyrolysis of brown coal in a drop-tube reactor with co-feeding of char as a promoter of in situ tar reforming Reviewed

    Zhang Li-xin, Matsuhara Toru, Kudo Shinji, Hayashi Jun-ichiro, Norinaga Koyo

    FUEL   Vol. 112   page: 681-686   2013.10

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    DOI: 10.1016/j.fuel.2011.12.030

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  140. Sulfonate ionic liquid as a stable and active catalyst for levoglucosenone production from saccharides via catalytic pyrolysis Reviewed

    Kudo S.

    Catalysts   Vol. 3 ( 4 ) page: 757-773   2013.9

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    DOI: 10.3390/catal3040757

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  141. Catalytic effects of Na and Ca from inexpensive materials on in-situ steam gasification of char from rapid pyrolysis of low rank coal in a drop-tube reactor Reviewed

    Zhang Li-xin, Kudo Shinji, Tsubouchi Naoto, Hayashi Jun-ichiro, Ohtsuka Yasuo, Norinaga Koyo

    FUEL PROCESSING TECHNOLOGY   Vol. 113   page: 1-7   2013.9

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    DOI: 10.1016/j.fuproc.2013.03.009

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  142. Catalytic Hydrothermal Reforming of Jatropha Oil in Subcritical Water for the Production of Green Fuels: Characteristics of Reactions over Pt and Ni Catalysts Reviewed

    Idesh Saruul, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 27 ( 8 ) page: 4796-4803   2013.8

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    DOI: 10.1021/ef4011065

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  143. Detailed Analysis of Residual Volatiles in Chars from the Pyrolysis of Biomass and Lignite Reviewed

    Yang Hua, Kudo Shinji, Hazeyama Seira, Norinaga Koyo, Masek Ondrej, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 27 ( 6 ) page: 3209-3223   2013.6

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    DOI: 10.1021/ef4001192

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  144. Estimation of Enthalpy of Bio-Oil Vapor and Heat Required for Pyrolysis of Biomass Reviewed

    Yang Hua, Kudo Shinji, Kuo Hsiu-Po, Norinaga Koyo, Mori Aska, Masek Ondrej, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 27 ( 5 ) page: 2675-2686   2013.5

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    DOI: 10.1021/ef400199z

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  145. Conversion Characteristics of Aromatic Hydrocarbons in Simulated Gaseous Atmospheres in Reducing Section of Two-Stage Entrained-Flow Coal Gasifier in Air- and O-2/CO2-Blown Modes Reviewed

    Sakurai Yasuhiro, Yamamoto Shuji, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 27 ( 4 ) page: 1974-1981   2013.4

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    DOI: 10.1021/ef301658d

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  146. Production of ketones from pyroligneous acid of woody biomass pyrolysis over an iron-oxide catalyst Reviewed

    Mansur Dieni, Yoshikawa Takuya, Norinaga Koyo, Hayashi Jun-ichiro, Tago Teruoki, Masuda Takao

    FUEL   Vol. 103   page: 130-134   2013.1

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    DOI: 10.1016/j.fuel.2011.04.003

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  147. Detailed chemical kinetic modelling of vapour-phase cracking of multi-component molecular mixtures derived from the fast pyrolysis of cellulose Reviewed

    Norinaga Koyo, Shoji Tetsuya, Kudo Shinji, Hayashi Jun-ichiro

    FUEL   Vol. 103   page: 141-150   2013.1

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    DOI: 10.1016/j.fuel.2011.07.045

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  148. Simultaneous Maximization of the Char Yield and Volatility of Oil from Biomass Pyrolysis Reviewed

    Huang Yong, Kudo Shinji, Masek Ondrej, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 27 ( 1 ) page: 247-254   2013.1

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    DOI: 10.1021/ef301366x

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  149. Coproduction of clean syngas and iron from woody biomass and natural goethite ore Reviewed

    Kudo Shinji, Sugiyama Keigo, Norinaga Koyo, Li Chun-Zhu, Akiyama Tomohiro, Hayashi Jun-ichiro

    FUEL   Vol. 103   page: 64-72   2013.1

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    DOI: 10.1016/j.fuel.2011.06.074

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  150. Simultaneous Steam Reforming of Tar and Steam Gasification of Char from the Pyrolysis of Potassium-Loaded Woody Biomass Reviewed

    Sueyasu Tsukasa, Oike Tomoyuki, Mori Aska, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 26 ( 1 ) page: 199-208   2012.1

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    DOI: 10.1021/ef201166a

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  151. Catalytic Hydrothermal Reforming of Water-Soluble Organics from the Pyrolysis of Biomass Using a Ni/Carbon Catalyst Impregnated with Pt Reviewed

    Idesh Saruul, Kudo Shinji, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 26 ( 1 ) page: 67-74   2012.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/ef201177b

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  152. Selective Production of Light Oil by Biomass Pyrolysis with Feedstock-Mediated Recycling of Heavy Oil Reviewed

    Huang Yong, Kudo Shinji, Norinaga Koyo, Amaike Masaki, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 26 ( 1 ) page: 256-264   2012.1

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    DOI: 10.1021/ef2011673

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  153. Preparation of High-Strength Coke by Carbonization of Hot-Briquetted Victorian Brown Coal Reviewed

    Mori Aska, Kubo Sousuke, Kudo Shinji, Norinaga Koyo, Kanai Tetsuya, Aoki Hideyuki, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 26 ( 1 ) page: 296-301   2012.1

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    DOI: 10.1021/ef201168g

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  154. Numerical simulation of thermal conversion of aromatic hydrocarbons in the presence of hydrogen and steam using a detailed chemical kinetic model Reviewed

    Norinaga Koyo, Sakurai Yasuhiro, Sato Ryota, Hayashi Jun-ichiro

    CHEMICAL ENGINEERING JOURNAL   Vol. 178   page: 282-290   2011.12

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    DOI: 10.1016/j.cej.2011.10.003

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  155. Molecular Size Determination of Coal-Derived Asphaltene by Fluorescence Correlation Spectroscopy Reviewed

    Andrews A. Ballard, Shih Wei-Chuan, Mullins Oliver C., Norinaga Koyo

    APPLIED SPECTROSCOPY   Vol. 65 ( 12 ) page: 1348-1356   2011.12

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    DOI: 10.1366/11-06258

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  156. Reforming of Volatiles from the Biomass Pyrolysis over Charcoal in a Sequence of Coke Deposition and Steam Gasification of Coke Reviewed

    Hosokai Sou, Norinaga Koyo, Kimura Tokuji, Nakano Masaki, Li Chun-Zhu, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 25 ( 11 ) page: 5387-5393   2011.11

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    DOI: 10.1021/ef2003766

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  157. Comparison of Coal-Derived and Petroleum Asphaltenes by C-13 Nuclear Magnetic Resonance, DEPT, and XRS Reviewed

    Andrews A. Ballard, Edwards John C., Pomerantz Andrew E., Mullins Oliver C., Nordlund Dennis, Norinaga Koyo

    ENERGY & FUELS   Vol. 25 ( 7 ) page: 3068-3076   2011.7

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    DOI: 10.1021/ef2003443

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  158. Efficient levoglucosenone production by catalytic pyrolysis of cellulose mixed with ionic liquid Reviewed

    Kudo Shinji, Zhou Zhenwei, Norinaga Koyo, Hayashi Jun-ichiro

    GREEN CHEMISTRY   Vol. 13 ( 11 ) page: 3306-3311   2011

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    DOI: 10.1039/c1gc15975e

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  159. Numerical simulation of secondary gas phase reactions of coffee grounds with a detailed chemical kinetic model Reviewed

    Tetsuya SHOJI, Koyo NORINAGA, Ondrej MASEK, Jun-ichiro HAYASHI

    Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy   Vol. 89 ( 10 ) page: 955-961   2010.12

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    DOI: https://doi.org/10.3775/jie.89.955

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  160. Application of an Existing Detailed Chemical Kinetic Model to a Practical System of Hot Coke Oven Gas Reforming by Noncatalytic Partial Oxidation Reviewed

    Norinaga Koyo, Yatabe Hiroshi, Matsuoka Masahiro, Hayashi Jun-ichiro

    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   Vol. 49 ( 21 ) page: 10565-10571   2010.11

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    DOI: 10.1021/ie100506v

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  161. Characteristics of Gas-Phase Partial Oxidation of Nascent Tar from the Rapid Pyrolysis of Cedar Sawdust at 700-800 degrees C Reviewed

    Hosokai Sou, Kishimoto Kazuya, Norinaga Koyo, Li Chu-Zhu, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 24   page: 2900-2909   2010.5

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    DOI: 10.1021/ef100161q

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  162. In-Situ Reforming of Tar from the Rapid Pyrolysis of a Brown Coal over Char Reviewed

    Matsuhara Toru, Hosokai Sou, Norinaga Koyo, Matsuoka Koichi, Li Chun-Zhu, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 24   page: 76-83   2010.1

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  163. Catalytic and Noncatalytic Mechanisms in Steam Gasification of Char from the Pyrolysis of Biomass Reviewed

    Kajita Makiko, Kimura Tokuji, Norinaga Koyo, Li Chun-Zhu, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 24   page: 108-116   2010.1

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    DOI: 10.1021/ef900513a

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  164. Numerical Simulation of the Partial Oxidation of Hot Coke Oven Gas with a Detailed Chemical Kinetic Model Reviewed

    Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 24   page: 165-172   2010.1

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    DOI: 10.1021/ef9005324

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  165. A reduced mechanism for primary reactions of coal volatiles in a plug flow reactor Reviewed

    Alam Md. Saiful, Wijayanta Agung Tri, Nakaso Koichi, Fukai Jun, Norinaga Koyo, Hayashi Jun-ichiro

    COMBUSTION THEORY AND MODELLING   Vol. 14 ( 6 ) page: 841-853   2010

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    DOI: 10.1080/13647830.2010.517273

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  166. Rapid Gasification of Nascent Char in Steam Atmosphere during the Pyrolysis of Na- and Ca-Ion-Exchanged Brown Coals in a Drop-Tube Reactor Reviewed

    Masek Ondrej, Hosokai Sou, Norinaga Koyo, Li Chun-Zhu, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 23   page: 4496-4501   2009.9

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    DOI: 10.1021/ef900285e

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  167. Analysis of pyrolysis products from light hydrocarbons and kinetic modeling for growth of polycyclic aromatic hydrocarbons with detailed chemistry Reviewed

    Norinaga Koyo, Deutschmann Olaf, Saegusa Naomichi, Hayashi Jun-ichiro

    JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   Vol. 86 ( 1 ) page: 148-160   2009.9

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    DOI: 10.1016/j.jaap.2009.05.001

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  168. Mechanism of decomposition of aromatics over charcoal and necessary condition for maintaining its activity Reviewed

    Hosokai Sou, Kumabe Kazuhiro, Ohshita Mikio, Norinaga Koyo, Li Chun-Zhu, Hayashi Jun-ichiro

    FUEL   Vol. 87 ( 13-14 ) page: 2914-2922   2008.10

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    DOI: 10.1016/j.fuel.2008.04.019

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  169. Activity of mesoporous alumina particles for biomass steam reforming in a fluidized-bed reactor and its application to a dual-gas-flow two-stage reactor system Reviewed

    Hosokai Son, Sugawa Makiyo, Norinaga Koyo, Li Chun-Zhu, Hayashi Jun-Ichiro

    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   Vol. 47 ( 15 ) page: 5346-5352   2008.8

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    DOI: 10.1021/ie071655c

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  170. Detailed chemical kinetic modeling of pyrolysis of ethylene, acetylene, and propylene at 1073-1373 K with a plug-flow reactor model Reviewed

    Norinaga Koyo, Janardhanan Vinod M., Deutschmann Olaf

    INTERNATIONAL JOURNAL OF CHEMICAL KINETICS   Vol. 40 ( 4 ) page: 199-208   2008.4

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    DOI: 10.1002/kin.20302

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  171. Modeling and simulation of materials synthesis: Chemical vapor deposition and infiltration of pyrolytic carbon Reviewed

    Li Aijun, Norinaga Koyo, Zhang Weigang, Deutschmann Olaf

    COMPOSITES SCIENCE AND TECHNOLOGY   Vol. 68 ( 5 ) page: 1097-1104   2008.4

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    DOI: 10.1016/j.compscitech.2007.07.00

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  172. Pyrolysis of propane under vacuum carburizing conditions: An experimental and modeling study Reviewed

    Khan R. U., Bajohr S., Buchholz D., Reimert R., Minh H. D., Norinaga K., Janardhanan V. M., Tischer S., Deutschmann O.

    JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   Vol. 81 ( 2 ) page: 148-156   2008.3

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    DOI: 10.1016/j.jaap.2007.09.012

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  173. A study on pyrolytic gasification of coffee grounds and implications to allothermal gasification Reviewed

    Masek Ondrej, Konno Mikki, Hosokai Sou, Sonoyama Nozomu, Norinaga Koyo, Hayashi Jun-ichiro

    BIOMASS & BIOENERGY   Vol. 32 ( 1 ) page: 78-89   2008.1

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    DOI: 10.1016/j.biombioe.2007.07.007

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  174. Detailed kinetic modeling of gas-phase reactions in the chemical vapor deposition of carbon from light hydrocarbons Reviewed

    Norinaga Koyo, Deutschmann Olaf

    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   Vol. 46 ( 11 ) page: 3547-3557   2007.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/ie061207p

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  175. Behavior of inherent metallic species as a crucial factor for kinetics of steam gasification of char from coal pyrolysis Reviewed

    Kitsuka Takahiro, Bayarsaikhan Bazardorj, Sonoyama Nozomu, Hosokai Sou, Li Chun-Zhu, Norinaga Koyo, Hayashi Jun-ichiro

    ENERGY & FUELS   Vol. 21 ( 2 ) page: 387-394   2007

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    DOI: 10.1021/ef0603986

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  176. Analysis of gas phase compounds in chemical vapor deposition of carbon from light hydrocarbons Reviewed

    Norinaga K, Deutschmann O, Huttinger KJ

    CARBON   Vol. 44 ( 9 ) page: 1790-1800   2006.8

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    DOI: 10.1016/j.carbon.2005.12.050

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  177. The effect of cooling rate on hydrogen release from a pyrolytic carbon coating and its resulting morphology Reviewed

    Reznik B, Norinaga K, Gerthsen D, Deutschmann O

    CARBON   Vol. 44 ( 7 ) page: 1330-1333   2006.6

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    DOI: 10.1016/j.carbon.2005.12.014

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  178. Molecular size and weight of asphaltene and asphaltene solubility fractions from coals, crude oils and bitumen Reviewed

    Badre S, Goncalves CC, Norinaga K, Gustavson G, Mullins OC

    FUEL   Vol. 85 ( 1 ) page: 1-11   2006.1

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    DOI: 10.1016/j.fuel.2005.05.021

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  179. Macroscopic observation of thermal behavior of concentrated solution of coal extracts Reviewed

    Suzuki M, Norinaga K, Iino M

    FUEL   Vol. 83 ( 16 ) page: 2177-2182   2004.11

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    DOI: 10.1016/j.fuel.2004.06.006

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  180. Kinetics of surface reactions in carbon deposition from light hydrocarbons Reviewed

    Norinaga K, Huttinger KJ

    CARBON   Vol. 41 ( 8 ) page: 1509-1514   2003

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    DOI: 10.1016/S0008-6223(03)00097-6

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  181. Characterizations of aggregation states of coal soluble constituents at solid state Reviewed

    Shui H, Norinaga K, Iino M

    ENERGY & FUELS   Vol. 16 ( 1 ) page: 69-73   2002

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    DOI: 10.1021/ef010162w

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  182. Effect of associative interaction on the dynamic viscoelastic property of coal concentrated solution Reviewed

    Norinaga K, Kuniya M, Iino M

    ENERGY & FUELS   Vol. 16 ( 1 ) page: 62-68   2002

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    DOI: 10.1021/ef010154f

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  183. Size and shape of a coal asphaltene studied by viscosity and diffusion coefficient measurements Reviewed

    Wargadalam VJ, Norinaga K, Lino M

    FUEL   Vol. 81 ( 11-12 ) page: 1403-1407   2002

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  184. Effect of addition of various salts on coal extraction with carbon disulfide/N-methyl-2-pyrrolidinone mixed solvent Reviewed

    Takahashi K, Norinaga K, Masui Y, Iino M

    ENERGY & FUELS   Vol. 15 ( 1 ) page: 141-146   2001

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  185. Measurement of self-diffusion coefficient of asphaltene in pyridine by pulsed field gradient spin-echo H-1 NMR Reviewed

    Norinaga K, Wargardalam VJ, Takasugi S, Iino M, Matsukawa S

    ENERGY & FUELS   Vol. 15 ( 5 ) page: 1317-1318   2001

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  186. Effect of tetrabutylammonium acetate addition on the aggregation of coal molecules at solution and solid states Reviewed

    Shui HF, Norinaga K, Iino M

    ENERGY & FUELS   Vol. 15 ( 2 ) page: 487-491   2001

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/ef000230z

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  187. Hydrodynamic properties of coal extracts in pyridine Reviewed

    Wargadalam VJ, Norinaga K, Iino M

    ENERGY & FUELS   Vol. 15 ( 5 ) page: 1123-1128   2001

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/ef0100045

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  188. Estimation of size and shape of pores in moist coal utilizing sorbed water as a molecular probe Reviewed

    Hayashi J, Norinaga K, Kudo N, Chiba T

    ENERGY & FUELS   Vol. 15 ( 4 ) page: 903-909   2001

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    DOI: 10.1021/ef0002849

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  189. Characterization of the microdomain structure of solvent-swollen coal by small-angle neutron scattering and proton-spin diffusion. Reviewed

    Norinaga K, Iino M, Cody GD

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   Vol. 219   page: U682-U682   2000.3

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  190. Effect of addition of salts on coal extraction on CS2NMP-mixed solvent. Reviewed

    Norinaga K, Takahashi K, Iino M

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   Vol. 219   page: U674-U674   2000.3

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  191. Viscoelastic properties of concentrated solution of coal with N-methyl-2-pyrrolidinone Reviewed

    Norinaga K, Kuniya M, Iino M

    ENERGY & FUELS   Vol. 14 ( 5 ) page: 1121-1122   2000

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  192. Mobilization of the hydroxyls in a brown coal with solvent-induced swelling evaluated by pulsed H-1 NMR Reviewed

    Norinaga K, Hayashi J, Kato R, Chiba T

    ENERGY & FUELS   Vol. 14 ( 2 ) page: 503-508   2000

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  193. Characterization of micro-domain structure of solvent-swollen coal by proton spin diffusion and small angle neutron scattering Reviewed

    Norinaga K, Iino M, Cody GD, Thiyagarajan P

    ENERGY & FUELS   Vol. 14 ( 6 ) page: 1245-1251   2000

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  194. Reduction in thermoplasticity of Illinois No. 6 coal by heat treatment in refluxing chlorobenzene Reviewed

    Norinaga K, Hayashi J, Kato R, Chiba T

    ENERGY & FUELS   Vol. 14 ( 2 ) page: 511-512   2000

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  195. On the association model for treating hydrogen bonding interaction of a solvent-swollen coal Reviewed

    Norinaga K, Iino M

    ENERGY & FUELS   Vol. 14 ( 4 ) page: 762-764   2000

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  196. Evaluation of the thermoplasticity of upper freeport coal and its extracts using dynamic viscoelasticity Reviewed

    Norinaga K, Iino M

    ENERGY & FUELS   Vol. 14 ( 4 ) page: 929-935   2000

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  197. Microheterogeneity of solvent-swollen coal probed by proton spin diffusion. Reviewed

    Norinaga K, Hayashi J, Chiba T, Iino M

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   Vol. 218   page: U605-U605   1999.8

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  198. Evaluation of effect of predrying on the porous structure of water-swollen coal based on the freezing property of pore condensed water Reviewed

    Norinaga K, Hayashi J, Kudo N, Chiba T

    ENERGY & FUELS   Vol. 13 ( 5 ) page: 1058-1066   1999

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  199. Microheterogeneity of solvent-swollen coal probed by proton spin diffusion Reviewed

    Norinaga K, Hayashi J, Chiba T, Cody GD

    ENERGY & FUELS   Vol. 13 ( 6 ) page: 1239-1245   1999

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    Web of Science

  200. Effect of sorbed water on conversion of coal by rapid pyrolysis Reviewed

    Hayashi J, Norinaga K, Yamashita T, Chiba T

    ENERGY & FUELS   Vol. 13 ( 3 ) page: 611-616   1999

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  201. Classification of water sorbed in coal on the basis of congelation characteristics Reviewed

    Norinaga K, Kumagai H, Hayashi J, Chiba T

    ENERGY & FUELS   Vol. 12 ( 3 ) page: 574-579   1998

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  202. Evaluation of drying induced changes in the molecular mobility of coal by means of pulsed proton NMR Reviewed

    Norinaga K, Kumagai H, Hayashi J, Chiba T

    ENERGY & FUELS   Vol. 12 ( 5 ) page: 1013-1019   1998

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  203. Type of water associated with coal. Reviewed

    Norinaga K, Kumagai H, Hayashi JI, Chiba T

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   Vol. 213   page: 136-FUEL   1997.4

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  204. Change in the associated molecular structure of coals in pyridine/CS2 mixed solvents. Reviewed

    Kumagai H, Matuoka K, Norinaga K, Chiba T, Sasaki M

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   Vol. 213   page: 153-FUEL   1997.4

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  205. Change in the conformation of lignite molecule during moisture release process Reviewed

    Norinaga K, Kumagai H, Sanada Y, Sasaki M, Kotanigawa T

    COAL SCIENCE, VOLS I AND II   Vol. 24   page: 35-38   1995

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Books 6

  1. カーボンニュートラルへの化学工学

    則永行庸( Role: Edit ,  編集長)

    丸善出版  2023.1 

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    Language:Japanese Book type:Scholarly book

  2. 脱炭素への工学

    則永行庸( Role: Joint author)

    三恵社  2021.12 

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    Total pages:230   Language:Japanese

  3. 脱炭素への工学

    則永行庸( Role: Joint author)

    三恵社  2021.12 

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    Total pages:230   Language:Japanese

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  4. 最新物質循環とマテリアル開発 マテリアル開発におけるシステム的思考の有用性 (化学工学の進歩)

    北 英紀、高見 誠一、小橋 眞、則永行庸ら( Role: Sole author ,  炭素循環型社会形成におけるCO2利用技術のポテンシャルとメタネーションによる CO2利用プロセス開発動向)

    三恵社  2018.11  ( ISBN:9784864879682

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    Total pages:217   Language:Japanese Book type:Scholarly book

  5. 最新物質循環とマテリアル開発 マテリアル開発におけるシステム的思考の有用性 (化学工学の進歩)

    北 英紀, 高見 誠一, 小橋 眞, 則永行庸ら( Role: Sole author ,  炭素循環型社会形成におけるCO2利用技術のポテンシャルとメタネーションによる CO2利用プロセス開発動向)

    三恵社  2018.11  ( ISBN:9784864879682

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    Total pages:217   Responsible for pages:118-125   Language:Japanese Book type:Scholarly book

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  6. 石炭の科学と技術 - 未来につなぐエネルギー -

    林潤一郎、松下洋介、則永行庸、荒牧寿弘( Role: Edit)

    コロナ社  2013.11  ( ISBN:978-4-339-06629-6

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    Total pages:400   Language:Japanese Book type:Scholarly book

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MISC 5

  1. Prediction of hot coke oven gas reforming by LES coupled with the extended flamelet/progress variable approach Reviewed

    Panlong Yu, Koyo Norinaga, Hiroaki Watanabe, Toshiaki Kitagawa

    Fuel   Vol. 231   page: 234 - 243   2018.11

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    Language:English   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:Elsevier Ltd  

    Large-eddy simulation (LES) coupled with the extended flamelet/progress variable approach (EFPV) has been performed to predict characteristics of reacting flows in a bench-scale hot coke oven gas (HCOG) reformer. In order to investigate the capability of capturing effects of operating conditions, simulations were carried out in two different cases in which the coke oven gas temperature and oxygen ratio were altered. Results showed that the LES coupled with the EFPV performed very well in terms of predicting temperature distribution as well as the temperature variation trend between the two cases. In addition, major species such as H2, CO, CO2, H2O and CH4, as well as minor species like benzene and some typical polycyclic aromatic hydrocarbons (PAH) were analyzed to illustrate their activities and dominant chemical events. With regards to the composition of the dry reformed gas, comparisons were made between the experimental data and the numerical simulation results, and reasonable results have been obtained. It has been confirmed that the general feature of the reacting flows in the HCOG reformer can be precisely captured by the present LES.

    DOI: 10.1016/j.fuel.2018.05.104

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  2. Characteristic Properties of Lignite to Be Converted to High-Strength Coke by Hot Briquetting and Carbonization Reviewed

    Shinji Kudo, Aska Mori, Gentaro Hayashi, Takuya Yoshida, Noriyuki Okuyama, Koyo Norinaga, Jun-Ichiro Hayashi

    Energy and Fuels   Vol. 32 ( 4 ) page: 4364 - 4371   2018.4

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    Language:English   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:American Chemical Society  

    A sequence of hot briquetting and carbonization (HBC) is a promising technology for the production of coke with a high mechanical strength from lignite, but factors affecting the coke strength have not yet been fully understood. The HBC cokes prepared from 12 lignites in this study showed diverse tensile strength (e.g., from 0.2 to 31.2 MPa in the preparation at 200 °C and 112 MPa for hot briquetting and 1000 °C for carbonization), and the coke strengths could not be explained by differences in commonly used structural properties of the parent lignites, such as elemental composition and contents of volatile matter/fixed carbon and ash. In this study, two methods were proposed for correlating the coke strength with the lignite properties, which employed the chemical structure analyzed by solid-state 13C nuclear magnetic resonance or the volumetric shrinkage during carbonization. A stronger coke was obtained from lignite that contained more aliphatic carbons (less aromatic carbons) or shrank more considerably. These characteristics contributed to intensified compaction of lignite in the briquetting and suppression of the formation of large pores, which are a cause of coke fracture. Two empirical equations, predicting the coke strength from the parameters of lignite properties, were established to be criteria for selection of lignite as HBC coke feedstock, although further investigation with more experimental data would be necessary for the validation.

    DOI: 10.1021/acs.energyfuels.7b03155

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  3. CO2 Gasification of Sugar Cane Bagasse: Quantitative Understanding of Kinetics and Catalytic Roles of Inherent Metallic Species Reviewed

    Zayda Faizah Zahara, Shinji Kudo, Daniyanto, U. P.M. Ashik, Koyo Norinaga, Arief Budiman, Jun-Ichiro Hayashi

    Energy and Fuels   Vol. 32 ( 4 ) page: 4255 - 4268   2018.4

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    Language:English   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:American Chemical Society  

    A total of 18 chars from the pyrolysis of six trios of sugar cane bagasses (SCBs
    original, water-washed, and acid-washed) were gasified with CO2 at 900 °C, aiming at a quantitative description of the rate of gasification catalyzed by inherent metallic species and a correlation of the catalytic activity and its change during the gasification with the metallic species composition. The measured kinetics was described quantitatively over a range of char conversion, 0-0.999, by a model that assumed progress in parallel of the catalytic gasification and non-catalytic gasification, together with the presence of a catalytic precursor and three to four types of catalysts having different activities and deactivation characteristics. A series of regression analyses was scrutinized and reached expression of initial catalytic activity as a linear function of Na, K, Ca, Fe, and Si concentrations in the char with a correlation factor (r2) of &gt
    0.98. The catalyst precursor contributed fully by water-soluble Na, K, and Ca. Si was responsible for the catalyst deactivation during the pyrolysis but not during the gasification. The chars produced from original SCBs followed a linear relationship between the initial catalytic deactivation rate and initial activity (r2 &gt
    0.99), while such a linear relationship was not valid for those formed from the water-washed SCBs. This was explained mainly by more rapid deactivation of the Fe catalyst in the chars from water-washed SCBs than that in the chars formed from the original SCBs. Na and K in char from the original SCBs, originating from the water-soluble SCBs, chemically interacted with the Fe catalyst, slowing its deactivation.

    DOI: 10.1021/acs.energyfuels.7b03147

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  4. Computational Study on the Thermal Decomposition of Phenol-Type Monolignols Reviewed

    Yuki Furutani, Yuki Dohara, Shinji Kudo, Jun-Ichiro Hayashi, Koyo Norinaga

    International Journal of Chemical Kinetics   Vol. 50 ( 4 ) page: 304 - 316   2018.4

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    Language:English   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:John Wiley and Sons Inc.  

    A detailed chemical kinetic model has been developed to theoretically predict the pyrolysis behavior of phenol-type monolignol compounds (1-(4-hydroxyphenyl)prop-2-en-1-one, HPP
    p-coumaryl alcohol, 3-hydroxy-1-(4-hydroxyphenyl)propan-1-one, HHPP
    1-(4-hydroxyphenyl)propane-1,3-diol, HPPD) released from the primary heterogeneous pyrolysis of lignin. The possible thermal decomposition pathways involving unimolecular decomposition, H-addition, and H-abstraction by H and CH3 radicals were investigated by comparing the activation energies calculated at the M06–2X/6–311++G(d,p) level of theory. The results indicated that all phenol-type monolignol compounds convert to phenol by side-chain cleavage. p-Coumaryl alcohol decomposes into phenol via the formation of 4-vinylphenol, whereas HPP, HHPP, and HPPD decompose into phenol via the formation of 4-hydroxybenzaldehyde. The pyrolytic pathways focusing on the reactivity of the hydroxyl group in HPP and producing cyclopentadiene (cyc-C5H6) were also investigated. The transition state theory (TST) rate constants for all the proposed elementary reaction channels were calculated at the high-pressure limit in the temperature range of 300–1500 K. The kinetic analysis predicted the two favorable unimolecular decomposition pathways in HPP: the one is the dominant channel below 1000 K to produce cyc-C5H6, and the other is above 1000 K to yield phenol (C6H5OH).

    DOI: 10.1002/kin.21164

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  5. Current situation and future scope of biomass gasification in Japan Reviewed

    Furutani, Y, Norinaga, K, Kudo, S, Hayashi, J.-I, Watanabe, T

    Evergreen   Vol. 4 ( 4 ) page: 24-29   2017.12

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Presentations 181

  1. 1-12 CO<sub>2</sub>メタネーション反応器における伝熱と流動に関する数値解析

    Zhang Wei, 溝口 莉彩, 町田 洋, 則永 行庸

    石炭科学会議発表論文集 

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    Event date: 2019

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>This paper reports a numerical study for a singl e shell and tube rea ctor of CO<sub>2</sub> methanation with a 1.5 m long reaction zone. A new conjugate heat transfer solver is developed based on the open-source OpenFOAM code. The newly developed solver solves the heat transfer problem as well as the reactions happen in the gas phase. The reactor is meshed with fully resolved gas, solid, and coolant regions , Two-temperature model is considered to solve the temperature of catalyst bed . The tube diam e ter is changed to investi gate the effect on the hot spot formation. The results show that the diameter of the tube is an important factor in determining the tem perature profiles of the catalyst bed as well as reacting gas. The peak t emperature of the hot spot was decreased from 980 to 770K with decreasing the tube diame ter from 32 to 14mm at a GHSV=3428h<sup>-1</sup>.</p>

    DOI: 10.20550/jiesekitanronbun.56.0_24

  2. 2-5 詳細反応化学速度モデルを用いた噴流床石炭ガス化炉における芳香族炭化水素の改質およびスス生成シミュレーション

    CHOI Cheolyong, 安達 希美, 町田 洋, 則永 行庸

    石炭科学会議発表論文集 

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    Event date: 2019

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>Tar evolved from coal pyrolysis contains polycyclic aromatic hydrocarbons (PAHs) that grow to soot through further aromatization in parall el with its reforming during gasification. Understanding of the chemistry and kinetics in a gasifier is important for developing low-temperature gasification. This work focused on numerical simulation of PAH reforming and soot formation in various coal typ es and gasification modes. A detailed chemical kinetic model was used for simulating a reductor of a two stage entrained flow gasifier under the gas composition determined by combination of experimental molecular composition of coal and inorganic gas compo sition at chemical equilibrium. O<sub>2</sub>/CO<sub>2</sub>-and O<sub>2</sub> /H<sub>2</sub>O-blown modes significantly reduced the yield of PAHs and the formation of soot. Growth of soot particle was dominated by acetylene addition above 1300°C, while nucleation of soot precursors and PAH condensat ion became dominant at lower temperature.</p>

    DOI: 10.20550/jiesekitanronbun.56.0_56

  3. 1-22 石炭熱分解時の芳香族クラスター成長により発生する水素の転換反応機構

    福岡 鉄也, CHOI Cheolyong, 町田 洋, 則永 行庸

    石炭科学会議発表論文集 

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    Event date: 2019

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>Changes in chemical structure of coal during carbonization are important factors to determine properties of softening and melting. It is believed that the caking properties are directly affected by transferable hydrogen, and its consumption lowers the degree of caking. Investigation of the fate of the hydrogen during carbonization is thus necessary for understanding the characteristics of caking. This work conducted quantitative analyses of the chemical structure of coke derived from caking and non-caking coal, together with an online gas analysis. As a result, the transferable hydrogen derived from the non-caking coal was partly consumed for decomposition of the functional groups such as ethers during carbonization, while that from the caking coal was little consumed.</p>

    DOI: 10.20550/jiesekitanronbun.56.0_44

  4. 1-2-2 Detailed chemical kinetic modeling for conversion characteristics of sulfur compounds in a two-stage entrained flow coal gasifier

    ADACHI Nozomi, Choi Cheolyong, ZHANG Wei, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of the Annual Conference of The Japan Institute of Energy 

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    Event date: 2019

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>Toward developing an environmentally-friendly coal gasification process, a deeper understanding of chemistry and kinetics of reactions happening in a gasifier is of great importance. This work presents a numerical approach to predict conversion characteristics of sulfur compounds in a reductor of a two-stage entrained flow coal gasifier. A detailed chemical kinetic model consisting of 1951 reactions and 257 chemical species were used to calculate concentration profiles along with the reductor position at different gasification modes, temperature, and coal types. The sulfur compounds were mainly converted into H<sub>2</sub>S, whereas COS is a second major product at the reductor outlet and the formation is more enhanced at an O<sub>2</sub>/CO<sub>2</sub>-blowing mode than those at air-, and O<sub>2</sub>/H<sub>2</sub>O-blowing modes. The predicted total concentrations of H<sub>2</sub>S and COS are ranged between 400 and 800 ppm and agreed with the results obtained with an air-blowing 200 ton/day test coal gasification plant reported in the literature.</p>

    DOI: 10.20550/jietaikaiyoushi.28.0_10

  5. 1-13 相分離型省エネルギーCO<sub>2</sub>吸収剤のCO<sub>2</sub>吸収再生性能評価

    鈴木 健弘, 西尾 仁志, Tran Khuyen, 柳瀬 慶一, 町田 洋, 則永 行庸

    石炭科学会議発表論文集 

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    Event date: 2019

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>Carbon dioxide capture and storage (CCS) is expected to play a role in combating global warming. Thus,</p><p>research and development are progressing around the world. However, there are limitations such as the</p><p>demonstration examples being limited to cases where the CO<sub>2</sub> capture site and storage site are close. In recent years, Carbon dioxide Capture and Utilization (CCU) using captured CO<sub>2</sub> has attracted attention.</p><p>This time, we will focus on technologies that reduce CO<sub>2</sub> and convert it into fuels and chemicals, mainly focusing on methanation. Energy saving can be achieved by integrating the CO<sub>2</sub> capture process and the CO<sub>2</sub> utilization process.</p><p>In this paper, we report the results of energy calculation in the CO<sub>2</sub> separation by the new process using the phase-separated type CO<sub>2</sub> absorbent developed so far, and the experimental results of continuous operation using this process.</p>

    DOI: 10.20550/jiesekitanronbun.56.0_26

  6. No.2-19 Reducing energy required for CO<sub>2</sub> separation/recovery process by employing amine/ether mixed absorbent

    MACHIDA Hiroshi, NISHIO Hitoshi, KHUYEN Tran, NORIANGA Koyo, ESAKI Takehiro

    Proceedings of Conference on Coal Science 

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    Event date: 2018

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>It has been recognized that the CO<sub>2</sub> separation and recovery process accounts around 60% of the total cost for operating CO<sub>2</sub> capture and storage (CCS). The CO<sub>2</sub> chemical absorption with a conventional amine solvent like monoethanol amine requires around 4 GJ/t-CO<sub>2</sub> for CO<sub>2</sub> recovery. Recently we developed phase separation solvent system which consists of not only amine but also hydrophobic solvent, ether. This system, before CO<sub>2</sub> absorption, we have single phase, while after CO<sub>2</sub> absorption, we have phase separation, one is CO<sub>2</sub> rich phase and the other is CO<sub>2</sub> lean phase. We can expect that the energy can significantly be reduced because it is not necessary to regenerate whole solvent but only the CO<sub>2</sub> rich phase is to be regenerated. In this study, we examined the phase phenomena for 9 types of amine and a hydrophobic solvent mixture before and after CO<sub>2</sub> absorption to find phase separation solvent system to minimize energy for CO<sub>2</sub> recovery. Based on the observation, the mechanism for the phase separation and solvent regeneration is also discussed.</p>

    DOI: 10.20550/jiesekitanronbun.55.0_84

  7. No.2-30 Chemical structure of coal and pyrolysis char and Quantitative evaluation of gas generation characteristics during pyrolysis

    FUKUOKA Tetsuya, MACHIDA Hiroshi, NORINAGA Koyo

    Proceedings of Conference on Coal Science 

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    Event date: 2018

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>Changes in the chemical structure of coal during the dry distillation process and the composition and production characteristics of volatile components are important factors related to the mechanism of caking property development and the physical properties of coke masses and analyzed by various methods. However, up to now, analysis of volatile components and structural analysis of solid char are mostly performed individually, and it is difficult to combine both and to obtain quantitative knowledge on the thermal decomposition reaction mechanism. In this study, we tried to measure composition of dry distillation for caking coal and subbituminous coal using online gas analysis, and analyze changes of coal chemical structure using several spectroscopic methods (NMR, FT-IR, XPS etc.), integrated the obtained information to combine the former and the latter, and attempted to obtain new understanding of the coal dry distillation mechanism.</p>

    DOI: 10.20550/jiesekitanronbun.55.0_110

  8. 7-2-4 Development of energy-saving CO<sub>2</sub> capture process using phase separation absorbent

    MACHIDA Hiroshi, ESAKI Takehiro, YAMAGUCHI Tsuyoshi, HORIZOE Hirotoshi, NORINAGA Koyo, KISHIMOTO Akira, MATSUOKA Akira, AKIYAMA Katsuya, NISHIMURA Makoto

    Proceedings of the Annual Conference of The Japan Institute of Energy 

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    Event date: 2017

    Language:English   Presentation type:Oral presentation (general)  

    <p>Phase separation type CO<sub>2</sub> capture solvent was developed which transforms into two liquid phases after CO<sub>2</sub> absorption. At first, we checked the phase phenomena of 9 types of amine and 3 types of polyether combinations. There shows three types; keeping one liquid phase before and after CO<sub>2</sub> absorption, transforming into two liquid phase after CO<sub>2</sub> absorption, forming initially two liquid phases. CO<sub>2</sub> solubility of the developed phase separation solvent was measured. The results show that the phase separation solvent can reduce the temperature difference between absorber and desorber than that of conventional amine solvent. Required energy for CO<sub>2</sub> capture using phase separation solvent was estimated under 2.0 GJ/ton-CO<sub>2</sub>.</p>

    DOI: 10.20550/jietaikaiyoushi.26.0_228

  9. P-3-3 Detailed Chemical Kinetic Modeling of Primary and Secondary Pyrolysis of Lignin

    FURUTANI Yuki, DOHARA Yuki, KUDO Shinji, HAYASHI Jun-ichiro, NORINAGA Koyo

    Proceedings of the Annual Conference of The Japan Institute of Energy 

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    Event date: 2017

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>A set of lignin pyrolysis processes involving primary pyrolysis and secondary vapor-phase reactions were described with a detailed chemical kinetic model (DCKM). The DCKM of primary pyrolysis, which characterizes lignin structures as three model compounds, predicted the yields of volatiles (c.a. 22 gas species and 10 monolignols) derived from primary pyrolysis. The original DCKM of secondary vapor-phase reactions did not involve the kinetic database on vapor-phase reaction of monolignols. Thus, the pyrolytic pathways of 1-(4-hydroxy-3,5-dimethoxyphenyl)prop-2-en-1-one (HDPP) accounted for 60 - 80 wt% of total monolignol species were proposed, and total 230 elementary reaction rate constants obtained by ab initio theory were added into the original kinetic database. The simulation of secondary vapor-phase reaction was performed using the volatile composition predicted by the DCKM of primary pyrolysis as a boundary condition. The established kinetic models successfully reproduced the yields of H<sub>2</sub>O and char, but at high temperature overestimated tar yield and underestimated CO yield. This is probably due to the insufficient kinetic model of the secondary vapor phase reaction, which did not include the decomposition pathways of the monolignols except for HDPP.</p>

    DOI: 10.20550/jietaikaiyoushi.26.0_268

  10. メタネーション実用化に向けた基盤技術開発 Invited

    則永 行庸

    日本ガス協会低炭素技術研究会  2020.9.14  日本ガス協会

  11. 相分離型CO2吸収剤の吸収特性に及ぼす添加剤の影響

    走出 龍星、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  12. アミン・エーテル・水3成分系液液相平衡測定

    戴 溶池、チャン クゥイン、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  13. COSMO-RS法によるCO2吸収に伴い液-液相分離するアミン・エーテル・水3成分系溶液の探索

    中岡 真菜、Tran Khuyen V. B.、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  14. CO2昇華現象を利用する新規CO2分離回収法の提案と基礎検討

    新實 立夏、柳瀬 慶一、チャン クウィン、町田 洋、梅田 良人、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  15. 相分離型吸収液を用いたCO2吸収・再生速度評価及びCO2分離回収装置の設計

    鈴木 健弘、Tran Khuyen、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  16. Production of butyl levulinate through butanolysis of furfuryl alcohol over acidic catalysts

    Thuppati Upender Rao、Choi Cheolyong、Machida Hiroshi、Norinaga Koyo

    第51回化学工学会秋季大会  2020.9.24 

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    Language:English   Presentation type:Poster presentation  

  17. Sequential hydrogenation and rapid pyrolysis of organosolv lignin to produce light hydrocarbons

    Zhang Lijuan、Choi Cheolyong、Machida Hiroshi、Norinaga Koyo

    第51回化学工学会秋季大会  2020.9.24 

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    Language:English   Presentation type:Oral presentation (general)  

  18. 反応・伝熱・流動を考慮した新規メタネーション反応装置解析ソルバーの開発

    溝口 莉彩、Zhang Wei、Choi Cheolyong、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  19. 種々の固体触媒上における水性ガスシフト反応の詳細化学反応モデルの構築

    平野 雄大、畔柳 郁弥、Zhang Wei、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  20. Quantitative analysis of transferable hydrogen formed by growth of aromatic cluster during coal pyrolysis

    Liu Chong、Choi Cheolyong、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:English   Presentation type:Poster presentation  

  21. 詳細化学反応速度モデルとOpenFOAMを用いたCVD反応器の熱流体解析

    古田 凌、チョウ イ、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  22. CO2メタネーションの総括反応速度モデルの構築と触媒有効係数に関する検討

    安田 将也、Choi Cheolyong、Zhang Wei、高野 裕之、泉屋 宏一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  23. Ni系触媒におけるCO2メタネーションの詳細化学反応速度モデルの構築

    畔柳 郁弥、Zhang Wei、Choi Cheolyong、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  24. Investigation of catalyst structure-performance relationship in dry reforming of methane by using lattice Boltzmann method

    Lin Yixiong、Zhang Wei、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:English   Presentation type:Oral presentation (general)  

  25. 噴流床石炭ガス化炉における硫黄化合物転換特性の詳細化学反応シミュレーション

    安達 希美、Choi Cheolyong、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  26. アミン・水・エーテル・CO2混合系吸収液の密度・粘度の測定とモデル化

    佐藤 美帆、Tran Khuyen Viet Bao、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  27. 炭素循環利用に関わる反応器設計に向けた流動・伝熱・反応シミュレーション Invited

    則永 行庸

    化学工学会 第51回秋季大会  2020.9.25 

  28. 冷熱を利用した大気中二酸化炭素直接回収の研究開発 Invited

    則永 行庸

    化学工学会第86年会 第7回化学工学ビジョンシンポジウム「2050年脱炭素社会への道」-脱炭素社会に向けた国内外の情勢  2021.3.21 

  29. 化学吸収法によるCO2分離回収の新展開 Invited

    則永 行庸

    革新的CO2分離回収技術シンポジウム ~地球温暖化防止に貢献する固体吸収材及び膜による分離回収技術の最新動向~  2021.2.2 

  30. 化学吸収法による省エネルギーCO2分離回収の新たな展開 Invited

    町田洋、則永行庸

    CCR研究会  2020.12.18  CCR研究会

  31. メタネーションの実証とCO2分離回収の省エネ化に向けた基盤研究 Invited

    則永 行庸

    『再生可能エネルギーからの水素製造・利用関連技術研究会』第二回研究会  2020.11.2 

  32. 炭素循環利用に向けたCO2有効利用及びCO2分離回収に関する基盤研究 Invited

    則永 行庸

    地球環境技術推進懇談会(2020年度第2回)  2020.10.29  大阪科学技術センター

  33. 化学気相浸透法による複合材料製造における基材緻密化過程の数値シミュレーション Invited

    則永 行庸

    日本学術振興会 先進セラミックス第124委員会 第160回研究会  2020.10.13 

  34. 相分離型CO2吸収剤の吸収特性に及ぼす添加剤の影響

    走出 龍星、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  35. Investigation of catalyst structure-performance relationship in dry reforming of methane by using lattice Boltzmann method

    Lin Yixiong、Zhang Wei、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:English   Presentation type:Oral presentation (general)  

  36. Ni系触媒におけるCO2メタネーションの詳細化学反応速度モデルの構築

    畔柳 郁弥、Zhang Wei、Choi Cheolyong、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  37. CO2メタネーションの総括反応速度モデルの構築と触媒有効係数に関する検討

    安田 将也、Choi Cheolyong、Zhang Wei、高野 裕之、泉屋 宏一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  38. 詳細化学反応速度モデルとOpenFOAMを用いたCVD反応器の熱流体解析

    古田 凌、チョウ イ、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  39. Quantitative analysis of transferable hydrogen formed by growth of aromatic cluster during coal pyrolysis

    Liu Chong、Choi Cheolyong、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:English   Presentation type:Poster presentation  

  40. 種々の固体触媒上における水性ガスシフト反応の詳細化学反応モデルの構築

    平野 雄大、畔柳 郁弥、Zhang Wei、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  41. 反応・伝熱・流動を考慮した新規メタネーション反応装置解析ソルバーの開発

    溝口 莉彩、Zhang Wei、Choi Cheolyong、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  42. Sequential hydrogenation and rapid pyrolysis of organosolv lignin to produce light hydrocarbons

    Zhang Lijuan、Choi Cheolyong、Machida Hiroshi、Norinaga Koyo

    第51回化学工学会秋季大会  2020.9.24 

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    Language:English   Presentation type:Oral presentation (general)  

  43. Production of butyl levulinate through butanolysis of furfuryl alcohol over acidic catalysts

    Thuppati Upender Rao、Choi Cheolyong、Machida Hiroshi、Norinaga Koyo

    第51回化学工学会秋季大会  2020.9.24 

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    Language:English   Presentation type:Poster presentation  

  44. 相分離型吸収液を用いたCO2吸収・再生速度評価及びCO2分離回収装置の設計

    鈴木 健弘、Tran Khuyen、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  45. CO2昇華現象を利用する新規CO2分離回収法の提案と基礎検討

    新實 立夏、柳瀬 慶一、チャン クウィン、町田 洋、梅田 良人、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  46. COSMO-RS法によるCO2吸収に伴い液-液相分離するアミン・エーテル・水3成分系溶液の探索

    中岡 真菜、Tran Khuyen V. B.、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  47. アミン・エーテル・水3成分系液液相平衡測定

    戴 溶池、チャン クゥイン、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Poster presentation  

  48. 噴流床石炭ガス化炉における硫黄化合物転換特性の詳細化学反応シミュレーション

    安達 希美、Choi Cheolyong、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  49. アミン・水・エーテル・CO2混合系吸収液の密度・粘度の測定とモデル化

    佐藤 美帆、Tran Khuyen Viet Bao、柳瀬 慶一、町田 洋、則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  50. メタネーション実用化に向けた基盤技術開発 Invited

    則永 行庸

    一般社団法人日本ガス協会講演「メタネーション研究開発とCO2分離回収と利用の統合化に向けた 取り組み」  2020.9.14  一般社団法人日本ガス協会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  51. 冷熱を利用した大気中CO2直接回収技術 Invited

    則永 行庸

    (株)技術情報協会「大気中CO2の直接回収技術」についての講習会  2021.12.23  (株)技術情報協会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  52. 化学吸収法による大気中二酸化炭素直接回収 Invited

    則永 行庸

    (株)技術情報センター 「DACと膜によるCO2分離回収技術の動向」セミナー  2021.12.21  (株)技術情報センター

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  53. 地球温暖化と脱炭素社会に向けた取り組み Invited

    則永 行庸

    ひとの大学シリーズ NHK文化センター名古屋教室  2021.12.8  (株)NHK文化センター名古屋総支社 

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    Venue:NHK名古屋放送センタービル内  

  54. 低濃度CO2や大気中CO2の回収を目指した冷熱利用型アミンプロセスの研究 Invited

    則永 行庸

    石炭・炭素資源有効利用研究会第4回研究会  2021.12.1  石炭・炭素資源有効利用研究会

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    Venue:オンライン  

  55. 二酸化炭素回収技術開発の最前線と脱炭素社会創造に向けた名古屋大学の取り組み Invited

    則永 行庸

    中部経済産業局 「CASE・MaaS対応 知財戦略セミナー」  2021.11.30  中部経済産業局

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    Venue:オンライン  

  56. 脱炭素社会創造に向けた名古屋大学の取り組み Invited

    則永 行庸

    名古屋商工会議所主催第3回産学連携クリーンテックオンライン  2021.11.22  名古屋商工会議所主催

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    Venue:オンライン  

  57. 技術講座「製銑プロセス工学」 Invited

    則永 行庸

    2021.11.18  日本製鉄株式会社

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    Venue:オンライン  

  58. メタネーション反応器開発における産学連携 Invited

    則永 行庸

    日本エネルギー学会関⻄支部合同セミナー 講演  2021.10.15  石油学会関⻄支部

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    Venue:オンライン  

  59. ゼロカーボン、ネガティブカーボンに向けたCO2分離と反応プロセスに関する研究 Invited

    則永 行庸

    三菱UFJ銀行 技術説明会  2021.9.16  三菱UFJ銀行

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:広小路クロスタワー10階12号会議室  

  60. CO2分離回収の省エネルギー化を目指した吸収液とプロセスの開発 Invited

    則永 行庸

    「カーボンリサイクル」WEB講座  2021.8.26  株式会社AndTech 企画開発部

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    Venue:オンライン  

  61. 低濃度CO2の分離回収にむけた冷熱利用化学吸収プロセスの研究開発 Invited

    則永 行庸

    九州経済産業局主催「九州低炭素システム研究会」セミナー  2021.6.30  九州経済産業局

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:西日本総合展示場(北九州市小倉北区)  

  62. 排ガスおよび大気中からのCO2分離回収とCO2利用プロセス開発のための基盤研究 Invited

    則永 行庸

    2021.4.28  日本製鉄株式会社

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    Venue:オンライン  

  63. 化学吸収法によるCO2分離回収の新展開 Invited

    則永 行庸

    革新的CO2分離回収技術シンポジウム~地球温暖化防止に貢献する個体吸収材及び膜による分離回収技術の最新動向~  2021.2.2  公益財団法人 地球環境産業技術研究機構

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    Venue:オンライン  

  64. 化学吸収法による省エネルギーCO2分離回収の新たな展開 Invited

    則永 行庸

    2020年度CCR 研究会 第二回講演会  2020.12.18  一般社団法人日本ガス協会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  65. メタネーションおよびCO2分離回収との統合 Invited

    則永 行庸

    一般財団法人 大阪科学技術センター 「地球環境技術推進懇談会(2020年度第2回)」  2020.10.29  一般財団法人 大阪科学技術センター

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:大阪化学技術センター  

  66. メタネーション実用化に向けた基盤技術開発 Invited

    則永 行庸

    一般社団法人日本ガス協会講演「メタネーション研究開発とCO2分離回収と利用の統合化に向けた 取り組み」  2020.9.14  一般社団法人日本ガス協会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  67. 二酸化炭素回収実現への名古屋大学の挑戦 Invited

    則永 行庸

    2022.7.14  野依カンファレンスホール コロナによりオンライン開催変更あり

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:名古屋大学協力会  

  68. 有機資源や二酸化炭素転換反応器における現象理解とシミュレーション Invited

    則永 行庸

    第31 回日本エネルギー学会大会  2022.8.4 

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:東京  

  69. LNG未利用冷熱による大気中のCO2直接回収技術 Invited

    則永 行庸

    2022.4.26  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:(株)技術情報協会  

  70. 冷熱を活用する化学吸収式二酸化炭素分離回収プロセスの研究開発 Invited

    則永 行庸

    公益財団法人日本冷凍空調学会「第55回空気調和・冷凍連合講演会」  2022.4.21  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:公益財団法人日本冷凍空調学会  

  71. 化学吸収法によるCO2の分離回収技術の最前線~新規吸収液、水素・冷熱活用による省エネルギー化~ Invited

    則永 行庸

    2022.6.20  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:R&D支援センター  

  72. 冷熱を利用する低濃度CO2回収技術の開発 Invited

    則永 行庸

    CMCリサーチウェビナー (大気中二酸化炭素直接回収技術(Cryo-DAC)の開発に関するウェビナー)  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:株式会社 シーエムシー・リサーチ  

  73. カーボンニュートラルに向けた二酸化炭素の回収と利用技術の開発 Invited

    則永 行庸

    名古屋産業振興公社 革新的技術研究会  2022.1.14  名古屋産業振興公社

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:なごやサイエンスパーク・サイエンス交流プラザ  

  74. 冷熱を利用した大気中CO2直接回収技術 Invited

    則永 行庸

    (株)技術情報協会「大気中CO2の直接回収技術」についての講習会  2021.12.23  (株)技術情報協会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  75. 化学吸収法による大気中二酸化炭素直接回収 Invited

    則永 行庸

    (株)技術情報センター 「DACと膜によるCO2分離回収技術の動向」セミナー  2021.12.21  (株)技術情報センター

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  76. 地球温暖化と脱炭素社会に向けた取り組み Invited

    則永 行庸

    ひとの大学シリーズ NHK文化センター名古屋教室  2021.12.8  (株)NHK文化センター名古屋総支社 

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:NHK名古屋放送センタービル内  

  77. 低濃度CO2や大気中CO2の回収を目指した冷熱利用型アミンプロセスの研究 Invited

    則永 行庸

    石炭・炭素資源有効利用研究会第4回研究会  2021.12.1  石炭・炭素資源有効利用研究会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  78. 二酸化炭素回収技術開発の最前線と脱炭素社会創造に向けた名古屋大学の取り組み Invited

    則永 行庸

    中部経済産業局 「CASE・MaaS対応 知財戦略セミナー」  2021.11.30  中部経済産業局

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  79. 脱炭素社会創造に向けた名古屋大学の取り組み Invited

    則永 行庸

    名古屋商工会議所主催第3回産学連携クリーンテックオンライン  2021.11.22  名古屋商工会議所主催

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  80. 技術講座「製銑プロセス工学」 Invited

    則永 行庸

    2021.11.18  日本製鉄株式会社

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  81. メタネーション反応器開発における産学連携 Invited

    則永 行庸

    日本エネルギー学会関⻄支部合同セミナー 講演  2021.10.15  石油学会関⻄支部

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  82. ゼロカーボン、ネガティブカーボンに向けたCO2分離と反応プロセスに関する研究 Invited

    則永 行庸

    三菱UFJ銀行 技術説明会  2021.9.16  三菱UFJ銀行

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:広小路クロスタワー10階12号会議室  

  83. CO2分離回収の省エネルギー化を目指した吸収液とプロセスの開発 Invited

    則永 行庸

    「カーボンリサイクル」WEB講座  2021.8.26  株式会社AndTech 企画開発部

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  84. 低濃度CO2の分離回収にむけた冷熱利用化学吸収プロセスの研究開発 Invited

    則永 行庸

    九州経済産業局主催「九州低炭素システム研究会」セミナー  2021.6.30  九州経済産業局

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:西日本総合展示場(北九州市小倉北区)  

  85. 排ガスおよび大気中からのCO2分離回収とCO2利用プロセス開発のための基盤研究 Invited

    則永 行庸

    2021.4.28  日本製鉄株式会社

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  86. 化学吸収法によるCO2分離回収の新展開 Invited

    則永 行庸

    革新的CO2分離回収技術シンポジウム~地球温暖化防止に貢献する個体吸収材及び膜による分離回収技術の最新動向~  2021.2.2  公益財団法人 地球環境産業技術研究機構

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  87. 化学吸収法による省エネルギーCO2分離回収の新たな展開 Invited

    則永 行庸

    2020年度CCR 研究会 第二回講演会  2020.12.18  一般社団法人日本ガス協会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

  88. メタネーションおよびCO2分離回収との統合 Invited

    則永 行庸

    一般財団法人 大阪科学技術センター 「地球環境技術推進懇談会(2020年度第2回)」  2020.10.29  一般財団法人 大阪科学技術センター

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:大阪化学技術センター  

  89. カーボンニュートラルに向けた二酸化炭素の回収と利用技術の開発 Invited

    則永 行庸

    名古屋産業振興公社 革新的技術研究会  2022.1.14  名古屋産業振興公社

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:なごやサイエンスパーク・サイエンス交流プラザ  

  90. 二酸化炭素回収実現への名古屋大学の挑戦 Invited

    則永 行庸

    2022.7.14  野依カンファレンスホール コロナによりオンライン開催変更あり

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:名古屋大学協力会  

  91. 有機資源や二酸化炭素転換反応器における現象理解とシミュレーション Invited

    則永 行庸

    第31 回日本エネルギー学会大会  2022.8.4 

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:東京  

  92. LNG未利用冷熱による大気中のCO2直接回収技術 Invited

    則永 行庸

    2022.4.26  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:(株)技術情報協会  

  93. 冷熱を活用する化学吸収式二酸化炭素分離回収プロセスの研究開発 Invited

    則永 行庸

    公益財団法人日本冷凍空調学会「第55回空気調和・冷凍連合講演会」  2022.4.21  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:公益財団法人日本冷凍空調学会  

  94. 化学吸収法によるCO2の分離回収技術の最前線~新規吸収液、水素・冷熱活用による省エネルギー化~ Invited

    則永 行庸

    2022.6.20  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:R&D支援センター  

  95. 冷熱を利用する低濃度CO2回収技術の開発 Invited

    則永 行庸

    CMCリサーチウェビナー (大気中二酸化炭素直接回収技術(Cryo-DAC)の開発に関するウェビナー)  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:株式会社 シーエムシー・リサーチ  

  96. 低濃度CO2や大気中CO2の回収を目指した冷熱利用型アミンプロセスの研究 Invited

    則永 行庸

    石炭・炭素資源有効利用研究会第4回研究会  2021.12.1  石炭・炭素資源有効利用研究会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

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  97. 低濃度CO2や大気中CO2の回収を目指した冷熱利用型アミンプロセスの研究 Invited

    則永 行庸

    石炭・炭素資源有効利用研究会第4回研究会  2021.12.1  石炭・炭素資源有効利用研究会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

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  98. 低濃度CO2の分離回収にむけた冷熱利用化学吸収プロセスの研究開発 Invited

    則永 行庸

    九州経済産業局主催「九州低炭素システム研究会」セミナー  2021.6.30  九州経済産業局

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:西日本総合展示場(北九州市小倉北区)  

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  99. 低濃度CO2の分離回収にむけた冷熱利用化学吸収プロセスの研究開発 Invited

    則永 行庸

    九州経済産業局主催「九州低炭素システム研究会」セミナー  2021.6.30  九州経済産業局

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:西日本総合展示場(北九州市小倉北区)  

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  100. 二酸化炭素回収技術開発の最前線と脱炭素社会創造に向けた名古屋大学の取り組み Invited

    則永 行庸

    中部経済産業局 「CASE・MaaS対応 知財戦略セミナー」  2021.11.30  中部経済産業局

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

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  101. 二酸化炭素回収技術開発の最前線と脱炭素社会創造に向けた名古屋大学の取り組み Invited

    則永 行庸

    中部経済産業局 「CASE・MaaS対応 知財戦略セミナー」  2021.11.30  中部経済産業局

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

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  102. 二酸化炭素回収実現への名古屋大学の挑戦 Invited

    則永 行庸

    2022.7.14  野依カンファレンスホール コロナによりオンライン開催変更あり

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:名古屋大学協力会  

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  103. 二酸化炭素回収実現への名古屋大学の挑戦 Invited

    則永 行庸

    2022.7.14  野依カンファレンスホール コロナによりオンライン開催変更あり

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:名古屋大学協力会  

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  104. メタネーション実用化に向けた基盤技術開発 Invited

    則永 行庸

    一般社団法人日本ガス協会講演「メタネーション研究開発とCO2分離回収と利用の統合化に向けた 取り組み」  2020.9.14  一般社団法人日本ガス協会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

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  105. メタネーション実用化に向けた基盤技術開発 Invited

    則永 行庸

    一般社団法人日本ガス協会講演「メタネーション研究開発とCO2分離回収と利用の統合化に向けた 取り組み」  2020.9.14  一般社団法人日本ガス協会

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

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  106. メタネーション実用化に向けた基盤技術開発 Invited

    則永 行庸

    日本ガス協会低炭素技術研究会  2020.9.14  日本ガス協会

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    Language:English   Presentation type:Oral presentation (general)  

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  107. メタネーション反応器開発における産学連携 Invited

    則永 行庸

    日本エネルギー学会関⻄支部合同セミナー 講演  2021.10.15  石油学会関⻄支部

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン  

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  108. メタネーション反応器開発における産学連携 Invited

    則永 行庸

    日本エネルギー学会関⻄支部合同セミナー 講演  2021.10.15  石油学会関⻄支部

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    Venue:オンライン  

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  109. メタネーションの実証とCO2分離回収の省エネ化に向けた基盤研究 Invited

    則永 行庸

    『再生可能エネルギーからの水素製造・利用関連技術研究会』第二回研究会  2020.11.2 

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  110. メタネーションおよびCO2分離回収との統合 Invited

    則永 行庸

    一般財団法人 大阪科学技術センター 「地球環境技術推進懇談会(2020年度第2回)」  2020.10.29  一般財団法人 大阪科学技術センター

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:大阪化学技術センター  

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  111. メタネーションおよびCO2分離回収との統合 Invited

    則永 行庸

    一般財団法人 大阪科学技術センター 「地球環境技術推進懇談会(2020年度第2回)」  2020.10.29  一般財団法人 大阪科学技術センター

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:大阪化学技術センター  

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  112. ゼロカーボン、ネガティブカーボンに向けたCO2分離と反応プロセスに関する研究 Invited

    則永 行庸

    三菱UFJ銀行 技術説明会  2021.9.16  三菱UFJ銀行

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:広小路クロスタワー10階12号会議室  

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  113. ゼロカーボン、ネガティブカーボンに向けたCO2分離と反応プロセスに関する研究 Invited

    則永 行庸

    三菱UFJ銀行 技術説明会  2021.9.16  三菱UFJ銀行

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    Venue:広小路クロスタワー10階12号会議室  

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  114. カーボンニュートラルに向けた二酸化炭素の回収と利用技術の開発 Invited

    則永 行庸

    名古屋産業振興公社 革新的技術研究会  2022.1.14  名古屋産業振興公社

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:なごやサイエンスパーク・サイエンス交流プラザ  

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  115. カーボンニュートラルに向けた二酸化炭素の回収と利用技術の開発 Invited

    則永 行庸

    名古屋産業振興公社 革新的技術研究会  2022.1.14  名古屋産業振興公社

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    Venue:なごやサイエンスパーク・サイエンス交流プラザ  

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  116. アミン・水・エーテル・CO2混合系吸収液の密度・粘度の測定とモデル化

    佐藤 美帆, Tran Khuyen Viet Bao, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  117. アミン・水・エーテル・CO2混合系吸収液の密度・粘度の測定とモデル化

    佐藤 美帆, Tran Khuyen Viet Bao, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  118. アミン・エーテル・水3成分系液液相平衡測定

    戴 溶池, チャン クゥイン, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  119. アミン・エーテル・水3成分系液液相平衡測定

    戴 溶池, チャン クゥイン, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  120. Sequential hydrogenation and rapid pyrolysis of organosolv lignin to produce light hydrocarbons

    Zhang Lijuan, Choi Cheolyong, Machida Hiroshi, Norinaga Koyo

    第51回化学工学会秋季大会  2020.9.24 

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  121. Sequential hydrogenation and rapid pyrolysis of organosolv lignin to produce light hydrocarbons

    Zhang Lijuan, Choi Cheolyong, Machida Hiroshi, Norinaga Koyo

    第51回化学工学会秋季大会  2020.9.24 

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  122. Quantitative analysis of transferable hydrogen formed by growth of aromatic cluster during coal pyrolysis

    Liu Chong, Choi Cheolyong, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  123. Quantitative analysis of transferable hydrogen formed by growth of aromatic cluster during coal pyrolysis

    Liu Chong, Choi Cheolyong, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  124. Production of butyl levulinate through butanolysis of furfuryl alcohol over acidic catalysts

    Thuppati Upender Rao, Choi Cheolyong, Machida Hiroshi, Norinaga Koyo

    第51回化学工学会秋季大会  2020.9.24 

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  125. Production of butyl levulinate through butanolysis of furfuryl alcohol over acidic catalysts

    Thuppati Upender Rao, Choi Cheolyong, Machida Hiroshi, Norinaga Koyo

    第51回化学工学会秋季大会  2020.9.24 

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  126. Ni系触媒におけるCO2メタネーションの詳細化学反応速度モデルの構築

    畔柳 郁弥, Zhang Wei, Choi Cheolyong, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  127. Ni系触媒におけるCO2メタネーションの詳細化学反応速度モデルの構築

    畔柳 郁弥, Zhang Wei, Choi Cheolyong, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  128. LNG未利用冷熱による大気中のCO2直接回収技術 Invited

    則永 行庸

    2022.4.26  オンライン

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    Venue:(株)技術情報協会  

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  129. LNG未利用冷熱による大気中のCO2直接回収技術 Invited

    則永 行庸

    2022.4.26  オンライン

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    Venue:(株)技術情報協会  

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  130. Investigation of catalyst structure-performance relationship in dry reforming of methane by using lattice Boltzmann method

    Lin Yixiong, Zhang Wei, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  131. Investigation of catalyst structure-performance relationship in dry reforming of methane by using lattice Boltzmann method

    Lin Yixiong, Zhang Wei, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  132. COSMO-RS法によるCO2吸収に伴い液-液相分離するアミン・エーテル・水3成分系溶液の探索

    中岡 真菜, Tran Khuyen V. B, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  133. COSMO-RS法によるCO2吸収に伴い液-液相分離するアミン・エーテル・水3成分系溶液の探索

    中岡 真菜, Tran Khuyen V. B, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  134. CO2昇華現象を利用する新規CO2分離回収法の提案と基礎検討

    新實 立夏, 柳瀬 慶一, チャン クウィン, 町田 洋, 梅田 良人, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  135. CO2昇華現象を利用する新規CO2分離回収法の提案と基礎検討

    新實 立夏, 柳瀬 慶一, チャン クウィン, 町田 洋, 梅田 良人, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  136. CO2分離回収の省エネルギー化を目指した吸収液とプロセスの開発 Invited

    則永 行庸

    「カーボンリサイクル」WEB講座  2021.8.26  株式会社AndTech 企画開発部

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    Venue:オンライン  

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  137. CO2分離回収の省エネルギー化を目指した吸収液とプロセスの開発 Invited

    則永 行庸

    「カーボンリサイクル」WEB講座  2021.8.26  株式会社AndTech 企画開発部

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  138. CO2メタネーションの総括反応速度モデルの構築と触媒有効係数に関する検討

    安田 将也, Choi Cheolyong, Zhang Wei, 高野 裕之, 泉屋 宏一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  139. CO2メタネーションの総括反応速度モデルの構築と触媒有効係数に関する検討

    安田 将也, Choi Cheolyong, Zhang Wei, 高野 裕之, 泉屋 宏一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  140. 冷熱を利用した大気中CO2直接回収技術 Invited

    則永 行庸

    (株)技術情報協会「大気中CO2の直接回収技術」についての講習会  2021.12.23  (株)技術情報協会

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  141. 詳細化学反応速度モデルとOpenFOAMを用いたCVD反応器の熱流体解析

    古田 凌, チョウ イ, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  142. 詳細化学反応速度モデルとOpenFOAMを用いたCVD反応器の熱流体解析

    古田 凌, チョウ イ, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  143. 脱炭素社会創造に向けた名古屋大学の取り組み Invited

    則永 行庸

    名古屋商工会議所主催第3回産学連携クリーンテックオンライン  2021.11.22  名古屋商工会議所主催

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  144. 脱炭素社会創造に向けた名古屋大学の取り組み Invited

    則永 行庸

    名古屋商工会議所主催第3回産学連携クリーンテックオンライン  2021.11.22  名古屋商工会議所主催

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  145. 種々の固体触媒上における水性ガスシフト反応の詳細化学反応モデルの構築

    平野 雄大, 畔柳 郁弥, Zhang Wei, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  146. 種々の固体触媒上における水性ガスシフト反応の詳細化学反応モデルの構築

    平野 雄大, 畔柳 郁弥, Zhang Wei, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  147. 相分離型吸収液を用いたCO2吸収・再生速度評価及びCO2分離回収装置の設計

    鈴木 健弘, Tran Khuyen, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  148. 相分離型吸収液を用いたCO2吸収・再生速度評価及びCO2分離回収装置の設計

    鈴木 健弘, Tran Khuyen, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  149. 相分離型CO2吸収剤の吸収特性に及ぼす添加剤の影響

    走出 龍星, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  150. 相分離型CO2吸収剤の吸収特性に及ぼす添加剤の影響

    走出 龍星, 柳瀬 慶一, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  151. 炭素循環利用に関わる反応器設計に向けた流動・伝熱・反応シミュレーション Invited

    則永 行庸

    化学工学会 第51回秋季大会  2020.9.25 

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  152. 炭素循環利用に向けたCO2有効利用及びCO2分離回収に関する基盤研究 Invited

    則永 行庸

    地球環境技術推進懇談会(2020年度第2回)  2020.10.29  大阪科学技術センター

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  153. 有機資源や二酸化炭素転換反応器における現象理解とシミュレーション Invited

    則永 行庸

    第31 回日本エネルギー学会大会  2022.8.4 

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    Venue:東京  

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  154. 有機資源や二酸化炭素転換反応器における現象理解とシミュレーション Invited

    則永 行庸

    第31 回日本エネルギー学会大会  2022.8.4 

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    Venue:東京  

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  155. 排ガスおよび大気中からのCO2分離回収とCO2利用プロセス開発のための基盤研究 Invited

    則永 行庸

    2021.4.28  日本製鉄株式会社

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    Venue:オンライン  

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  156. 排ガスおよび大気中からのCO2分離回収とCO2利用プロセス開発のための基盤研究 Invited

    則永 行庸

    2021.4.28  日本製鉄株式会社

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    Venue:オンライン  

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  157. 技術講座「製銑プロセス工学」 Invited

    則永 行庸

    2021.11.18  日本製鉄株式会社

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  158. 技術講座「製銑プロセス工学」 Invited

    則永 行庸

    2021.11.18  日本製鉄株式会社

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  159. 地球温暖化と脱炭素社会に向けた取り組み Invited

    則永 行庸

    ひとの大学シリーズ NHK文化センター名古屋教室  2021.12.8  (株)NHK文化センター名古屋総支社

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    Venue:NHK名古屋放送センタービル内  

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  160. 地球温暖化と脱炭素社会に向けた取り組み Invited

    則永 行庸

    ひとの大学シリーズ NHK文化センター名古屋教室  2021.12.8  (株)NHK文化センター名古屋総支社

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    Venue:NHK名古屋放送センタービル内  

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  161. 噴流床石炭ガス化炉における硫黄化合物転換特性の詳細化学反応シミュレーション

    安達 希美, Choi Cheolyong, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  162. 噴流床石炭ガス化炉における硫黄化合物転換特性の詳細化学反応シミュレーション

    安達 希美, Choi Cheolyong, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  163. 反応・伝熱・流動を考慮した新規メタネーション反応装置解析ソルバーの開発

    溝口 莉彩, Zhang Wei, Choi Cheolyong, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  164. 反応・伝熱・流動を考慮した新規メタネーション反応装置解析ソルバーの開発

    溝口 莉彩, Zhang Wei, Choi Cheolyong, 町田 洋, 則永 行庸

    第51回化学工学会秋季大会  2020.9.24 

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  165. 化学気相浸透法による複合材料製造における基材緻密化過程の数値シミュレーション Invited

    則永 行庸

    日本学術振興会 先進セラミックス第124委員会 第160回研究会  2020.10.13 

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  166. 化学吸収法によるCO2分離回収の新展開 Invited

    則永 行庸

    革新的CO2分離回収技術シンポジウム~地球温暖化防止に貢献する個体吸収材及び膜による分離回収技術の最新動向~  2021.2.2  公益財団法人 地球環境産業技術研究機構

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    Venue:オンライン  

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  167. 化学吸収法によるCO2分離回収の新展開 Invited

    則永 行庸

    革新的CO2分離回収技術シンポジウム~地球温暖化防止に貢献する個体吸収材及び膜による分離回収技術の最新動向~  2021.2.2  公益財団法人 地球環境産業技術研究機構

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  168. 化学吸収法による省エネルギーCO2分離回収の新たな展開 Invited

    則永 行庸

    2020年度CCR 研究会 第二回講演会  2020.12.18  一般社団法人日本ガス協会

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    Venue:オンライン  

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  169. 化学吸収法による省エネルギーCO2分離回収の新たな展開 Invited

    則永 行庸

    2020年度CCR 研究会 第二回講演会  2020.12.18  一般社団法人日本ガス協会

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  170. 化学吸収法による省エネルギーCO2分離回収の新たな展開 Invited

    町田洋, 則永行庸

    CCR研究会  2020.12.18  CCR研究会

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  171. 化学吸収法による大気中二酸化炭素直接回収 Invited

    則永 行庸

    (株)技術情報センター 「DACと膜によるCO2分離回収技術の動向」セミナー  2021.12.21  (株)技術情報センター

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  172. 化学吸収法による大気中二酸化炭素直接回収 Invited

    則永 行庸

    (株)技術情報センター 「DACと膜によるCO2分離回収技術の動向」セミナー  2021.12.21  (株)技術情報センター

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  173. 化学吸収法によるCO2分離回収の新展開 Invited

    則永 行庸

    革新的CO2分離回収技術シンポジウム ~地球温暖化防止に貢献する固体吸収材及び膜による分離回収技術の最新動向~  2021.2.2 

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  174. 化学吸収法によるCO2の分離回収技術の最前線~新規吸収液、水素・冷熱活用による省エネルギー化~ Invited

    則永 行庸

    2022.6.20  オンライン

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    Venue:R&D支援センター  

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  175. 化学吸収法によるCO2の分離回収技術の最前線~新規吸収液、水素・冷熱活用による省エネルギー化~ Invited

    則永 行庸

    2022.6.20  オンライン

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    Venue:R&D支援センター  

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  176. 冷熱を活用する化学吸収式二酸化炭素分離回収プロセスの研究開発 Invited

    則永 行庸

    公益財団法人日本冷凍空調学会「第55回空気調和・冷凍連合講演会」  2022.4.21  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:公益財団法人日本冷凍空調学会  

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  177. 冷熱を活用する化学吸収式二酸化炭素分離回収プロセスの研究開発 Invited

    則永 行庸

    公益財団法人日本冷凍空調学会「第55回空気調和・冷凍連合講演会」  2022.4.21  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:公益財団法人日本冷凍空調学会  

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  178. 冷熱を利用する低濃度CO2回収技術の開発 Invited

    則永 行庸

    CMCリサーチウェビナー (大気中二酸化炭素直接回収技術(Cryo-DAC)の開発に関するウェビナー)  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:株式会社 シーエムシー・リサーチ  

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  179. 冷熱を利用する低濃度CO2回収技術の開発 Invited

    則永 行庸

    CMCリサーチウェビナー (大気中二酸化炭素直接回収技術(Cryo-DAC)の開発に関するウェビナー)  オンライン

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:株式会社 シーエムシー・リサーチ  

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  180. 冷熱を利用した大気中二酸化炭素直接回収の研究開発 Invited

    則永 行庸

    化学工学会第86年会 第7回化学工学ビジョンシンポジウム「2050年脱炭素社会への道」-脱炭素社会に向けた国内外の情勢  2021.3.21 

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    Language:English   Presentation type:Oral presentation (general)  

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  181. 冷熱を利用した大気中CO2直接回収技術 Invited

    則永 行庸

    (株)技術情報協会「大気中CO2の直接回収技術」についての講習会  2021.12.23  (株)技術情報協会

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    Venue:オンライン  

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Research Project for Joint Research, Competitive Funding, etc. 13

  1. 冷熱を利用した大気中二酸化炭 素直接回収の研究開発

    2020.9

    ムーンショット型研究開発事業/地球環境再生に向けた持続可能な資源循環を実現 

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    Authorship:Principal investigator 

  2. 未利用冷熱による燃焼ガス中CO2の回収技術の開発

    2020.7

    エネルギー・環境新技術先導研究プログラム 

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    Grant type:Competitive

  3. サイクロンによる気液分離機構を備えた自己熱再生型高効率酸素濃縮技術の研究開発

    2020.7

    エネルギー・環境新技術先導研究プログラム 

    則永行庸

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    Grant type:Competitive

  4. 石油精製プラントにおけるファウリング現象のCFD(数値流体力学解析)研究

    2020.4

    企業からの受託研究 

  5. 未来環境エネルギー研究開発イノベーション拠点

    2019.4

    戦略的国際共同研究プログラム「日本-中国 国際共同研究イノベーション拠点共同研究」 

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    Grant type:Competitive

  6. コークス

    2019.4

  7. 耐熱材料

    2018.7 - 2020.3

    企業からの受託研究 

  8. ゼロエミッション石炭火力技術開発

    2018.5 - 2020.2

    受託研究 

  9. Methanation

    2017.10

    Funded Research from Enterprise 

  10. CMC

    2017.7 - 2018.3

    Cooperative Research within Japan 

  11. Cokes

    2017.4

    Cooperative Research within Japan 

  12. Advanced IGCC

    2017.4 - 2018.3

    Commissioned Research 

  13. Zero emission IGCC

    2017.4 - 2018.3

    Commissioned Research 

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KAKENHI (Grants-in-Aid for Scientific Research) 20

  1. 有機廃棄物再生プロセスの革新に向けた複雑反応解析基盤の確立

    Grant number:22H00570  2022.4 - 2027.3

    日本学術振興会  科学研究費助成事業  基盤研究(A)

    則永 行庸, 福本 一生, 平山 幹朗, 町田 洋, 平山 幹朗, 町田 洋, 福本 一生

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    Authorship:Principal investigator 

    Grant amount:\33280000 ( Direct Cost: \25600000 、 Indirect Cost:\7680000 )

    有機廃棄物(林地残材、農業廃棄物、可燃ごみ、廃プラスチック等)のエネルギー・物質
    リサイクルの限界までの高効率化を実現するために、廃棄物熱化学転換特性を高精度に机
    上予測するための「複雑反応解析基盤」を確立する。多種多様な廃棄物原料の熱化学転換反応を統一的に予測できる反応速度モデルを構築する。次いで、詳細な化学反応と伝熱・流動数値解析を統合した反応器内現象の高精度シミュレーションによって、現象を深層まで理解する手法を確立する。さらに、この従来型の順解析の追究がもたらす反応器内現象の通暁を逆解析し、最適反応器設計のための工学的手法へと止揚させる。

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  2. 冷熱を利用した大気中二酸化炭 素直接回収の研究開発

    2020.9

    NEDO  ムーンショット型研究開発事業/地球環境再生に向けた持続可能な資源循環を実現 

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  3. バイオマスを原料とする高機能CO2吸着材の設計と合成

    Grant number:20F20754  2020.11 - 2022.3

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    則永 行庸, LIU ZHENG, 則永 行庸, LIU ZHENG

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    Authorship:Other  Grant type:Competitive

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  4. 未来環境エネルギー研究開発イノベーション拠点

    2019.4

    文部科学省  戦略的国際共同研究プログラム「日本-中国 国際共同研究イノベーション拠点共同研究」 

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    Grant type:Competitive

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  5. コークス

    2019.4

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    Grant type:Competitive

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  6. 耐熱材料

    2018.7

    IHI  企業からの受託研究 

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    Grant type:Competitive

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  7. ゼロエミッション石炭火力技術開発

    2018.5

    NEDO 電力中央研究所  受託研究 

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    Grant type:Competitive

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  8. Methanation

    2017.10 - 2020.2

    Funded Research from Enterprise 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\148760400

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  9. CMC

    2017.7 - 2018.3

    Cooperative Research within Japan 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\6000000

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  10. Cokes

    2017.4

    Cooperative Research within Japan 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\8000000

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  11. An approach for real time analysis of multi-component volatiles from solid fuels towards ultimately efficient biomass gasification

    Grant number:17H03454  2017.4 - 2020.3

    Norinaga Koyo

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\14430000 ( Direct Cost: \11100000 、 Indirect Cost:\3330000 )

    To improve the efficiency of biomass gasification, a series of research on reaction prediction methods and measurement methods of multi-component gas mixture generated upon biomass gasification were performed. The main achievements can be sumerized as: (1) The first comprehensive chemical kinetic model of lignin, which uses only the elemental composition as input information, is used to quantitatively predict the thermal decomposition of lignin including both primary and secondary pyrolysis. (2) Ion attachment mass spectrometry using Li+ ions was applied for the first time to real-time quantitative analysis of volatile components generated by solid fuel pyrolysis, and succeeded in fragment-free measurement of volatile which exhibit multi-component gas mixtures.

  12. Zero emission IGCC

    2017.4 - 2018.3

    Commissioned Research 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\3199000

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  13. Advanced IGCC

    2017.4 - 2018.3

    Commissioned Research 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\1380000

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  14. Turbulent multiphase elementary reaction modeling of pulverized coal based on physical and chemical structures

    Grant number:16K06125  2016.4 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Watanabe Hiroaki, Tainaka Kazuki

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    Non-spherical particle motion model was developed to simulate the motion of pulverized coal particle and the model was validated by comaring with the experiment. It was also found that the rink-like structure of the particle dispersion in the turbuelnt flow was formed by the dependence of the particle size and the shape.
    In addition, the behavior of the secondary decomposition of the volatile matter of coal including pyridic-N, pyrrolic-N and quaternary-N were clarified by the elementary reaction analysis with the detailed chemistry and the simplified mechanism was genearated by extracting the major spcies and reactions.
    Moreover, the numerical simulation with the simplified mechanism on the labratory-scale coaxial jet burner was performed to validate the model and to clarify the detailed structure of the coal flame.

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  15. バイオオイルのin-situ改質によるグリーン基幹化学原料への高選択的転換

    2015.4 - 2017.3

    科学研究費補助金  挑戦的萌芽研究

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    Authorship:Principal investigator 

  16. バイオオイルのin-situ改質によるグリーン基幹化学原料への高選択的転換

    2015.4 - 2017.3

    日本学術振興会  科学研究費助成事業  挑戦的萌芽研究

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    Authorship:Principal investigator  Grant type:Competitive

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  17. その場接触分解によるバイオオイル高効率アップグレーディング法の開発と機構解明

    2012.4 - 2014.3

    科学研究費補助金  挑戦的萌芽研究

    則永行庸

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    Authorship:Principal investigator 

  18. 革新的高効率炭素資源転換プロセス構築のための熱化学反応情報基盤の確立

    2011.4 - 2014.3

    科学研究費補助金  若手研究(A)

    則永行庸

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    Authorship:Principal investigator 

  19. 素反応シミュレーションを援用した芳香族化合物含有ガス改質反応機構の解明

    2008.4 - 2010.3

    科学研究費補助金  若手研究(B)

    則永行庸

  20. 水素結合性相互作用を考慮した石炭マクロ分子のネットワーク構造解析

    2000.4 - 2002.3

    科学研究費補助金  奨励研究

    則永行庸

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    Authorship:Principal investigator 

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Teaching Experience (On-campus) 20

  1. Fundamentals of Chemistry II

    2020

  2. Automobile Chemical Systems II

    2020

  3. Chemical Reaction Systems

    2020

  4. Multiphase Flow

    2020

  5. Seminars on Chemical Systems Engineering 1D

    2020

  6. Seminars on Chemical Systems Engineering 1C

    2020

  7. Seminars on Chemical Systems Engineering 1A

    2020

  8. Environmental Systems Engineering

    2020

  9. Advanced Experiments and Exercises on Chemical Systems 2

    2020

  10. Advanced Experiments and Exercises on Chemical Systems 1

    2020

  11. Seminars on Chemical Systems Engineering 2E

    2020

  12. Seminars on Chemical Systems Engineering 2D

    2020

  13. Seminars on Chemical Systems Engineering 2C

    2020

  14. Seminars on Chemical Systems Engineering 2B

    2020

  15. Seminars on Chemical Systems Engineering 2A

    2020

  16. 混相流動

    2019

  17. 化学基礎II

    2019

  18. 反応操作

    2019

  19. Automotive Chemical Systems II

    2019

  20. 工業化学

    2017

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Teaching Experience (Off-campus) 23

  1. Seminars on Chemical Systems Engineering 1A

    2020 Nagoya University)

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    Level:Postgraduate 

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  2. Automobile Chemical Systems II

    2020 Nagoya University)

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    Level:Undergraduate (specialized) 

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  3. Multiphase Flow

    2020 Nagoya University)

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    Level:Undergraduate (specialized) 

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  4. Environmental Systems Engineering

    2020 Nagoya University)

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    Level:Postgraduate 

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  5. Fundamentals of Chemistry II

    2020 Nagoya University)

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    Level:Undergraduate (liberal arts) 

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  6. Chemical Reaction Systems

    2020 Nagoya University)

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    Level:Undergraduate (specialized) 

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  7. Advanced Experiments and Exercises on Chemical Systems 2

    2020 Nagoya University)

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    Level:Postgraduate 

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  8. Advanced Experiments and Exercises on Chemical Systems 1

    2020 Nagoya University)

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    Level:Postgraduate 

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  9. Seminars on Chemical Systems Engineering 2E

    2020 Nagoya University)

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    Level:Postgraduate 

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  10. Seminars on Chemical Systems Engineering 2D

    2020 Nagoya University)

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    Level:Postgraduate 

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  11. Seminars on Chemical Systems Engineering 2C

    2020 Nagoya University)

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    Level:Postgraduate 

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  12. Seminars on Chemical Systems Engineering 2B

    2020 Nagoya University)

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    Level:Postgraduate 

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  13. Seminars on Chemical Systems Engineering 2A

    2020 Nagoya University)

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    Level:Postgraduate 

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  14. Seminars on Chemical Systems Engineering 1D

    2020 Nagoya University)

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    Level:Postgraduate 

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  15. Seminars on Chemical Systems Engineering 1C

    2020 Nagoya University)

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    Level:Postgraduate 

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  16. 化学工学基礎

    Kyushu University)

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    Level:Postgraduate 

  17. 化学反応工学特論

    Kyushu University)

  18. Automotive Chemical Systems II

    Nagoya University)

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  19. 工業化学

    Nagoya University)

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  20. 反応操作

    Nagoya University)

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  21. 化学工学基礎

    Kyushu University)

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    Level:Postgraduate 

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  22. 化学基礎II

    Nagoya University)

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  23. 化学反応工学特論

    Kyushu University)

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Social Contribution 6

  1. story of mobility

    Role(s):Appearance, Commentator, Media coverage

    ZIP FM  Story of Mobility  2021.3

  2. story of mobility

    Role(s):Appearance, Commentator, Media coverage

    ZIP FM  Story of Mobility  2021.3

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    Type:TV or radio program

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  3. 模擬講義

    Role(s):Lecturer

    桑名高校  2019.6

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    Audience: High school students

  4. 模擬講義

    Role(s):Lecturer

    桑名高校  2019.6

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    Audience: High school students

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  5. 模擬講義

    Role(s):Lecturer

    向陽高校  2018.10

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    Audience: High school students

  6. 模擬講義

    Role(s):Lecturer

    向陽高校  2018.10

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Media Coverage 30

  1. Cold energy stored in liquefied natural gas could help capture carbon dioxide Newspaper, magazine

    American Chemical Society  Chemical&Engineering News  2022.1

  2. Cold energy stored in liquefied natural gas could help capture carbon dioxide Newspaper, magazine

    American Chemical Society  Chemical&Engineering News  2022.1

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  3. 【独自】東邦ガス×名大 CO2の回収に挑む新技術 Newspaper, magazine

    中日新聞社  中日新聞  2021.12

  4. 【独自】東邦ガス×名大 CO2の回収に挑む新技術 Newspaper, magazine

    中日新聞社  中日新聞  2021.12

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  5. 環境問題の最新動向紹介 講演会に40人参加 オンライン配信も Newspaper, magazine

    中部経済新聞社  中部経済新聞  2021.11

  6. 環境問題の最新動向紹介 講演会に40人参加 オンライン配信も Newspaper, magazine

    中部経済新聞社  中部経済新聞  2021.11

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  7. NEDOプログラム 地球を救え!ムーンショット(11)目標4

    日刊工業新聞社  日刊工業新聞  2021.11

  8. NEDOプログラム 地球を救え!ムーンショット(11)目標4

    日刊工業新聞社  日刊工業新聞  2021.11

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  9. 脱炭素技術説明会に117社 三菱UFJ オンラインで開催 Newspaper, magazine

    読売新聞社  読売新聞  2021.9

  10. 脱炭素、研究を紹介 東海7大学、産学連携目指し 名大、センター新設へ Newspaper, magazine

    毎日新聞社  毎日新聞  2021.9

  11. 脱炭素技術説明会に117社 三菱UFJ オンラインで開催 Newspaper, magazine

    読売新聞社  読売新聞  2021.9

  12. 脱炭素、研究を紹介 東海7大学、産学連携目指し 名大、センター新設へ Newspaper, magazine

    毎日新聞社  毎日新聞  2021.9

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  13. 脱炭素技術説明会に117社 三菱UFJ オンラインで開催 Newspaper, magazine

    読売新聞社  読売新聞  2021.9

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  14. 脱炭素技術説明会に117社 三菱UFJ オンラインで開催 Newspaper, magazine

    読売新聞社  読売新聞  2021.9

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  15. 三菱UFJ銀、中部7大学の脱炭素研究 企業に紹介 Newspaper, magazine

    日本経済新聞社  日本経済新聞  2021.9

  16. 三菱UFJ銀、中部7大学の脱炭素研究 企業に紹介 Newspaper, magazine

    日本経済新聞社  日本経済新聞  2021.9

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  17. NEDOプログラム 地球を救え!ムーンショット(3)名古屋大学

    日刊工業新聞社  日刊工業新聞  2021.8

  18. NEDOプログラム 地球を救え!ムーンショット(3)名古屋大学

    日刊工業新聞社  日刊工業新聞  2021.8

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  19. 大気中CO2直接回収、捨てられていた「冷熱」を活用 TV or radio program

    NHK  おはよう日本  2021.5

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    Author:Myself 

  20. 大気中CO2直接回収、捨てられていた「冷熱」を活用 TV or radio program

    NHK  おはよう日本  2021.5

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  21. CO2直接回収技術の研究を開始 Newspaper, magazine

    株式会社新農林社  新エネルギー新聞  3面  2021.3

  22. CO2直接回収技術の研究を開始 Newspaper, magazine

    株式会社新農林社  新エネルギー新聞  3面  2021.3

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  23. 大気中のCO2回収LNGの冷熱活用 Newspaper, magazine

    日本経済新聞社  日本経済新聞  11面  2021.2

  24. 大気中のCO2回収LNGの冷熱活用 Newspaper, magazine

    日本経済新聞社  日本経済新聞  11面  2021.2

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  25. LNG冷熱でCO2回収 Newspaper, magazine

    中日新聞社  中日新聞  9面  2021.1

  26. LNG未利用冷熱活用 Newspaper, magazine

    日刊工業新聞社  日刊工業新聞  16面  2021.1

  27. LNG冷熱でCO2回収 Newspaper, magazine

    中日新聞社  中日新聞  9面  2021.1

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  28. LNG未利用冷熱活用 Newspaper, magazine

    日刊工業新聞社  日刊工業新聞  16面  2021.1

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  29. LNG 未利用冷熱による大気中の CO2直接回収技術の研究開始 Internet

    名古屋大学  プレスリリース(採択情報)  2021.1

  30. LNG 未利用冷熱による大気中の CO2直接回収技術の研究開始 Internet

    名古屋大学  プレスリリース(採択情報)  2021.1

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