Project/Area Number |
17J00447
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Research Category |
Grant-in-Aid for JSPS Fellows
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Allocation Type | Single-year Grants |
Section | 国内 |
Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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Research Institution | Hiroshima University |
Principal Investigator |
余 心 広島大学, 工学研究科, 特別研究員(DC2)
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Project Period (FY) |
2017-04-26 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2018: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2017: ¥900,000 (Direct Cost: ¥900,000)
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Keywords | membrane / gas separation / thermal stability / chemical stability / BTESE / oxidation / organosilica / Gas permeation / pH-swing / sol-gel |
Outline of Annual Research Achievements |
1. For organosilica membranes, one of the potential applications of separation is H2 purification at high temperatures from C3H6. But the thermal stability of organosilica membranes has remained unclear, because membranes are usually prepared and used at temperatures lower than 300 °C due to decomposition of the organic linking units at high temperatures. The development of organosilica materials-derived membranes with thermal/oxidation stability at high temperatures and high gas selectivity remains a challenge. To this end, we developed organosilica membranes prepared at high temperatures under N2 and membranes showed excellent selectivity with high levels of H2 permeance and a permeation performance that could be tailored by treatment under air at 550 °C. 2. Microporous inorganic membranes prepared via a sol-gel method were proposed for O2/SO3 separation. Single-gas permeation measurements revealed that silica-zirconia membranes with a large pore size and a high Si/Zr molar ratio had good resistance to SO3, which was confirmed by the change of gas permeance. Characterizations including BET, EDS, and pH indicated the SiO2, α-Al2O3 and lower Zr-content SiZr powders had good chemical stability against SO3 even at 550 °C. In the binary-component gas separation of SO3/O2, the membrane that consisted of BTESE separation layer, SiZr (Si/Zr = 7/3) intermediate layer and α-Al2O3 support layer showed an O2 permeance of 2.5*10-8 mol m-2 s-1 Pa-1 and exhibited an O2/SO3 selectivity of 10.
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Research Progress Status |
平成30年度が最終年度であるため、記入しない。
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Strategy for Future Research Activity |
平成30年度が最終年度であるため、記入しない。
|
Report
(2 results)
Research Products
(6 results)
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[Journal Article] Research and development on membrane IS process for hydrogen production using solar heat2018
Author(s)
M. Odtsetseg, J. Iwatsuki, N. Tanaka, H. Noguchi, Y. Kamiji, I. Ioka, S. Kubo, M. Nomura, T.Yamaki, S. Sawada, T. Tsuru, M. Kanezashi, X. Yu, M. Machida, T. Ishihara, H. Abekawa, M. Mizuno, T. Taguchi, Y. Hosono, Y. Kuriki, M. Inomata, K. Miyajima, Y. Inagaki
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Journal Title
International Journal of Hydrogen Energy
Volume: -
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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