Faculty Profiles - NARUSE Ichiro

Papers - NARUSE Ichiro

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Control of ash deposition in pulverized coal-fired boiler Reviewed

Hiroshi Naganuma, Nobuya Ikeda, Takayuki Kawai, suyoshi Takuwa, Tadashi Ito, Yoshiaki Igarashi, Ryo Yoshiie, Ichiro Naruse

Proceedings of Combustion Institute Vol. 32 page： 2709-2716 2009

Control of ash deposition in pulverized coal fired boiler

Naganuma Hiroshi, Ikeda Nobuya, Kawai Takayuki, Takuwa Tsuyoshi, Ito Tadashi, Igarashi Yoshiaki, Yoshiie Ryo, Naruse Ichiro

PROCEEDINGS OF THE COMBUSTION INSTITUTE Vol. 32 page： 2709 - 2716 2009

Gasification characteristics of woody biomass in the packed bed reactor

Yoshiie R.

7th Asia-Pacific Conference on Combustion, ASPACC 2009 2009

228 Gasification behaviors of woody biomass in packed bed gasifier

ONO Hirofumi, YOSHIIE Ryo, NARUSE Ichiro, TORIGOE Takashi

The Proceedings of the Symposium on Environmental Engineering Vol. 2009 ( 0 ) page： 216 - 219 2009

Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Mechanical Engineers

The purpose of this study is to investigate the behavior of biomass gasification in the packed-bed, conducting gasification experiment and analysis of syn-gas in the reactor. In this study, pellets of black pine (ψ6.5mm×8.5mm) are fed intermittently with air as the gasification agent. The gasification experiments were carried out by two type gasification methods, such as updraft and downdraft setups. In the gasification tests, the temperature distribution in the gasification reactor and the gas compositions are measured and analyzed during gasification by thermo-couples inserted from a furnace wall and a micro gas chromatograph, respectively. Product gas before cooling were sampled for determine the amount of tar generation.

DOI： 10.1299/jsmeenv.2009.19.216

606 Emission behaviors of particulates with trace elements under coal gasification

YOSHIIE Ryo, TAYA Yukihiro, NARUSE Ichiro

The Proceedings of Conference of Tokai Branch Vol. 2009 ( 0 ) page： 375 - 376 2009

Gasification and Desulfurization Characteristics of Carbonaceous Materials in Molten Alkali Carbonates

RAHARJO Slamet, TAKUWA Tsuyoshi, IWASAKI Shin, YOSHIIE Ryo, NARUSE Ichiro

Journal of Environment and Engineering Vol. 4 ( 2 ) page： 386 - 394 2009

Publishing type：Research paper (scientific journal) Publisher：一般社団法人日本機械学会

This study focuses on gasification technology of carbonaceous materials in molten carbonates since this gasifier can gasify those fuels catalytically and in-situ clean up the gasified gas at high temperature simultaneously. This gasification system has such advantages that alkali metal compounds have catalytic function for the gasification reactions, the molten alkali compounds can absorb sulfur compounds and the molten media can capture ash and un-reacted particles produced. The molten carbonate employed in this study is an eutectic salt with the compositions of 43 mol% Na2CO3 and 57 mol% K2CO3. CO2 is selected as a gasification agent. Before the gasification experiments, the optimum gasification and desulfurization temperature is evaluated by the chemical equilibrium calculations. Fundamental gasification and desulfurization experiments were conducted, by using an electrically heated reactor. As a result, the main compositions of the gasified gas are CO, H2 and CH4. H2S and COS gases in the product can be absorbed almost completely by the molten alkali carbonates. These results suggest that this gasifier can gasify the carbonaceous materials and desulfurize even at high temperature inside the furnace simultaneously.

DOI： 10.1299/jee.4.386

Gasification and Desulfurization Characteristics of Carbonaceous Materials in Molten Alkali Carbonates

NARUSE Ichiro, RAHARJO Slamet, IWASAKI Shin, TAKUWA Tsuyoshi, YOSHIIE Ryo

Transactions of the Japan Society of Mechanical Engineers B Vol. 74 ( 748 ) page： 2636 - 2641 2008.12

Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Mechanical Engineers

This study focuses on gasification technology of carbonaceous materials in molten carbonates since this gasifier can gasify those fuels catalytically and in-situ clean up the gasified gas at high temperature simultaneously. This gasification system has such advantages that alkali metal compounds show catalytic function for the gasification reactions, the molten alkali compounds can absorb sulfur compounds and the molten media can capture ash and unreacted particles produced. The molten carbonate employed in this study is an eutectic salt with the compositions of 43mol% Na_2CO_3 and 57mol% K_2CO_3. CO_2 is selected as a gasification agent. Before the gasification experiments, the optimum gasification and desulfurization temperature is evaluated by the chemical equilibrium calculations. Fundamental gasification and desulfurization experiments were conducted, by using an electrically heated reactor. As a result, the main compositions of the gasified gas are CO, H_2 and CH_4. H_2S and COS gases in the product can be absorbed almost completely by the molten alkali carbonates. These results suggest that this gasifier can gasify the carbonaceous materials and desulfurize even at high temperature inside the furnace simultaneously.

Altered signaling pathway in the dysmorphogenesis of telencephalon in the Gli3 depressed mouse embryo, Pdn/Pdn.

Ueta E, Kurome M, Teshima Y, Kodama M, Otsuka Y, Naruse I

Congenital anomalies Vol. 48 ( 2 ) page： 74 - 80 2008.6

*溶融アルカリ炭酸塩を用いた炭素系物質のガス化・脱硫特性 Reviewed

成瀬一郎、Slamet RAHARJO、岩崎伸、多久和穀志、義家亮

日本機械学会論文集B編 Vol. 74 ( 748 ) page： 2636-2641 2008

*溶融アルカリ炭酸塩を用いた炭素系物質のガス化・脱硫特性 Reviewed

成瀬一郎, Slamet RAHARJO, 岩崎伸, 多久和穀志, 義家亮

日本機械学会論文集B編 Vol. 74 ( 748 ) page： 2636-2641 2008

Gasification and Desulfurization Characteristics of Carbonaceous Materials in Molten Alkali Carbonates

NARUSE Ichiro, RAHARJO Slamet, IWASAKI Shin, TAKUWA Tsuyoshi, YOSHIIE Ryo

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B Vol. 74 ( 748 ) page： 2636 - 2641 2008

Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Mechanical Engineers

This study focuses on gasification technology of carbonaceous materials in molten carbonates since this gasifier can gasify those fuels catalytically and in-situ clean up the gasified gas at high temperature simultaneously. This gasification system has such advantages that alkali metal compounds show catalytic function for the gasification reactions, the molten alkali compounds can absorb sulfur compounds and the molten media can capture ash and unreacted particles produced. The molten carbonate employed in this study is an eutectic salt with the compositions of 43 mol% Na2CO3 and 57 mol% K2CO3. CO2, is selected as a gasification agent. Before the gasification experiments, the optimum gasification and desulfurization temperature is evaluated by the chemical equilibrium calculations. Fundamental gasification and desulfurization experiments were conducted, by using an electrically heated reactor. As a result, the main compositions of the gasified gas are CO, H2 and CH4. H2S and COS gases in the product can be absorbed almost completely by the molten alkali carbonates. These results suggest that this gasifier can gasify the carbonaceous materials and desulfurize even at high temperature inside the furnace simultaneously.

DOI： 10.1299/kikaib.74.2636

Scopus

Combustion characteristics and kinetics of upgraded brown coal

Nishio Kentaro, Takuwa Tsuyoshi, Yoshiie Ryo, Naruse Ichiro

Proceedings of Conference on Coal Science Vol. 45 ( 0 ) page： 44 - 45 2008

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

To preserve fossil fuels all over the world, it is important to develop the efficient use of low rank coals like brown coal and lignite. Upgraded Brown Coal (UBC), which is the coal dewatered and stabilized in heated oil, is the promising way to use low rank coals as sophisticatedly as bituminous coals. In this paper, fundamental combustion characteristics and kinetics of UBCs are examined via thermo-gravimetric analyses. The results obtained are compared with those of some kinds of bituminous coal. The UBC seemed to have higher reactivity during combustion. There is a little difference in the volatile evolution process between the UBC and bituminous coals.

DOI： 10.20550/jiesekitanronbun.45.0_44

Studies on Behavior of Trace Metal during Coal Gasification Process

TAYA Yukihiro, TAKUWA Tsuyoshi, ASAKURA Eiji, YOSHIIE Ryo, NARUSE Ichiro

Proceedings of Conference on Coal Science Vol. 45 ( 0 ) page： 94 - 95 2008

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

Some trace metal compounds in coal easily vaporize and form fumes during coal gasification. The fumes subsequently cause some problems such as corrosion of the gas turbine blades and material deterioration of the fuel cell. Therefore, it is necessary to understand and control the volatilization of those compounds. In this paper, the evolution behavior of trace heavy metal compounds, especially for Pb and Cd has been studied by thermodynamic equilibrium calculation under combustion and gasification conditions.

DOI： 10.20550/jiesekitanronbun.45.0_94

Reduction of ash deposition by surface treatment on heat exchanger tube

NAGANUMA Hiroshi, IKEDA Nobuya, NARUSE Ichiro, YOSHIIE Ryo, TAKUWA Tsuyoshi, URASHIMA Kazuaki, ITO Tadashi, IGARASHI Yoshiaki

Proceedings of Conference on Coal Science Vol. 45 ( 0 ) page： 90 - 91 2008

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

In pulverized coal fired boilers, molten ash particles generated during combustion have possibility of adhesion on surface of heat exchanger tubes. This ash deposition layer formed plays a role for insulation surrounding the tubes. In order to solve this problem, surface treatment technology of the heat exchanger tubes is developed in this study. Surface treatment technology adopted in this study could reduce the ash deposition during coal combustion. The adhesive bond between the deposition layer and the tube surface related to percentage of content of alkali sulfate in ash.

DOI： 10.20550/jiesekitanronbun.45.0_90

552 Study on reaction behaviors in packed-bed biomass gasifier

TORIGOE Takashi, NARUSE Ichiro

The Proceedings of Conference of Tokai Branch Vol. 2008 ( 0 ) page： 383 - 384 2008

554 Enrichment behavior of trace metal components in combustion of simulated waste oil

Kanaoka Toshiki, Muramatsu Kenshi, Naruse Ichiro

The Proceedings of Conference of Tokai Branch Vol. 2008 ( 0 ) page： 387 - 388 2008

Detailed kinetic and control of alkali metal compounds during coal combustion

Takuwa T.

Fuel Processing Technology Vol. 88 ( 11-12 ) page： 1029 - 1034 2007.12

Experiments and thermodynamic equilibrium of homogenous oxidation of mercury

Luo G.

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics Vol. 28 ( 6 ) page： 1039 - 1042 2007.11

Prevention of ochratoxin A-induced neural tube defects by folic acid in the genetic polydactyly/arhinencephaly mouse, Pdn/Pdn.

Katagiri R, Kurome M, Teshima Y, Ueta E, Naruse I

Congenital anomalies Vol. 47 ( 3 ) page： 90 - 6 2007.9

Emission Behaviors and Control of Trace Elements during Combustion Processes

NARUSE Ichiro

Journal of the Society of Inorganic Materials,Japan Vol. 14 ( 328 ) page： 177 - 183 2007.5

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