研究者詳細 - 町田　洋

論文 - 町田　洋

分割表示 71 件中 41 - 60 件目／全件表示 >>

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

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

ISIJ INTERNATIONAL 59 巻 ( 8 ) 頁： 1376-1381 2019年

An approach for quantifying transferable hydrogen in pyrolyzing coals

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年

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

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年

Low temperature swing process for CO<sub>2</sub> absorption-desorption using phase separation CO<sub>2</sub> capture solvent

Machida, H; Ando, R; Esaki, T; Yamaguchi, T; Horizoe, H; Kishimoto, A; Akiyama, K; Nishimura, M

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL 75 巻頁： 1 - 7 2018年8月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：International Journal of Greenhouse Gas Control

We have developed a phase separation solvent which transforms into two liquid phases after CO2 absorption, in order to establish an energy-saving CO2 capture process. The CO2 loading changes strongly with temperature increase during the phase separation, which enables us to reduce the temperature difference between absorber and desorber. The low temperature swing process economizes the energy requirement for the CO2 capture process with highly-effective reaction-heat recovery. We evaluated the energy consumption of the CO2 capture process with our novel phase separation solvent based on the CO2 solubility. The energy requirement was estimated to be as low as 1.6 GJ/ton-CO2.

DOI： 10.1016/j.ijggc.2018.05.010

Web of Science

Scopus

Shear Viscosity and Heterogeneous Structure of Alkylaminoethanol-Based CO2 Absorbents

Yamaguchi Tsuyoshi, Ando Ryuya, Yoshida Koji, Yamaguchi Toshio, Machida Hiroshi

JOURNAL OF PHYSICAL CHEMISTRY B 122 巻 ( 14 ) 頁： 4045-4050 2018年4月

Degradation Test for Energy-Saving CO<inf>2</inf> Absorbent based on Phase Separation Type Solvent by Aqueous (Amine + Ether) Solution

Maeda N., Kishimoto A., Machida H., Yamaguchi T.

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

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：GHGT 2018 - 14th International Conference on Greenhouse Gas Control Technologies

The unique phase separation type amine/ether absorbent is expected to realize the CO2 separation process with low-energy consumption (1.5GJ/ton-CO2). In this study, a degradation test of the absorbent under thermal load of liquid regeneration was conducted in order to clarify 1) the behavior of its performance declination for CO2 capture and 2) the behavior of amine loss mainly caused by generation of by-product. The regeneration condition was chosen based on two assumptions that a) most likely to damage to the solution, which means high-oxidation atmosphere containing oxygen and sulfur oxide, and b) adopting actual operating temperature when absorbing or desorbing. As a result, only a small amount of the CO2 capture capability was lost through 48 hours cyclic thermal load of 50-90 °C. Consequently, it was found that the phase separation type solvent could be durable enough for the practical use. Besides, the running cost associated with make-up amine might be drastically reduced.

Scopus

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

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年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：GHGT 2018 - 14th International Conference on Greenhouse Gas Control Technologies

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.

Scopus

Development of phase separation solvent for CO2 capture by aqueous (amine plus ether) solution

Machida Hiroshi, Oba Kazuki, Tomikawa Takashi, Esaki Takehiro, Yamaguchi Tsuyoshi, Horizoe Hirotoshi

JOURNAL OF CHEMICAL THERMODYNAMICS 113 巻頁： 64-70 2017年10月

過酸化水素の予熱条件が流通式メタン水熱部分酸化改質反応に与える影響査読有り

織田耕彦, 町田洋, 堀添浩俊

化学工学論文集 43 巻 ( 5 ) 頁： 342-346 2017年9月

Partial Oxidation of Methane by Fenton Reaction under Hydrothermal Environment 査読有り

Yasuhiko ORITA, Hiroshi MACHIDA, Hirotoshi HORIZOE

Journal of the Japan Institute of Energy 96 巻 ( 8 ) 頁： 339-345 2017年8月

Phase Separation Solvent for CO2 Capture 査読有り

Hiroshi Machida, Takehiro Esaki, Kazuki Oba, Takashi Tomikawa, Tsuyoshi Yamaguchi, Hirotoshi Horizoe

Energy Procedia 114 巻頁： 823-826 2017年7月

Effect of Preheating Conditions of Hydrogen Peroxide on Flow-Type Hydrothermal Partial Oxidation of Methane

Orita Yasuhiko, Machida Hiroshi, Horizoe Hirotoshi

KAGAKU KOGAKU RONBUNSHU 43 巻 ( 5 ) 頁： 342-346 2017年

Biomass Pretreatment with Hydrothermal Explosion for Bioethanol Production 査読有り

Machida, Hiroshi Honda, Yurie Saito, Masahiro Horizoe, Hirotoshi

96 巻 ( 9 ) 頁： 386-392 2017年

Hydrogen Peroxide and Carbon Dioxide Effect on Biomass Hydrothermal Treatment 査読有り

Hiroshi MACHIDA, Masahiro SAITO, and Hirotoshi HORIZOE

Journal of the Japan Institute of Energy 95 巻 ( 639 ) 頁： 644 2016年

Modeling of CO2 Solubility in Tertiary Amine Solvents Using pKa 査読有り

Hiroshi Machida, Hidetaka Yamada, Shin Yamamoto

Journal of Chemical & Engineering Data 61 巻頁： 2144-2148 2016年

CO2 Solubility Measurements and Modeling for Tertiary Diamines 査読有り

Hiroshi Machida, Hidetaka Yamada, Yuichi Fujioka, Shin Yamamoto

Journal of Chemical & Engineering Data 60 巻頁： 814 2015年

High efficiency metal removal from hexane-extracted algae oil using super and subcritical propane 査読有り

Hiroshi Machida, Hirotoshi Horizoe

Energy Conversion and Management 95 巻頁： 90 2015年

High pressure vapor liquid equilibria measurements and modeling of butane ethanol system and isobutane ethanol system 査読有り

H. Machida, K. Matsumura, H. Horizoe

Fluid Phase Equilibria 375 巻頁： 176-180 2014年5月

Production of 5-hydroxymethylfurfural from corn stalk catalyzed by corn stalk-derived carbonaceous solid acid catalyst 査読有り

Lulu Yan, Nian Liu, Yu Wang, Hiroshi Machida, Xinhua Qi

Bioresource Technology 173 巻頁： 462 2014年

Development of chemical CO2 solvent for high-pressure CO2 capture 査読有り

Shin Yamamoto, Hiroshi Machida, Yuichi Fujioka, Takayuki Higashii

Energy Procedia 37 巻頁： 505-517 2013年

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