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Efficient production of hydrogen from natural gas steam reforming in palladium membrane reactor

文献类型:期刊论文

作者Chen, Yazhong1,2; Wang, Yuzhong1; Xu, Hengyong1; Xiong, Guoxing1
刊名applied catalysis b-environmental
出版日期2008-06-24
卷号81期号:3-4页码:283-294
关键词hydrogen production methane steam reforming palladium membrane reactor nickel-based catalyst
产权排序2;1
通讯作者徐恒泳
英文摘要ultra-thin, high performance composite palladium membrane, developed via a novel electroless plating method, was applied to construct a membrane reactor for methane steam reforming reaction, which was investigated under the following working conditions: temperature 723-823 k, pressure 300-900 kpa, gas hourly space velocity (ghsv) 4000-8000 mlg(cat)(-1) h(-1), steam-to-carbon feed ratio (s/c, mol/mol) 2.5-3.5 and sweep ratio (defined as the ratio between flux of sweep gas to that of methane at the inlet of catalyst bed) 0-4.3. in contrast with previous investigations using commercial catalysts activated at lower temperatures, the catalyst applied in this work was a nickel-based one pre-reduced at 1023 k. the results indicated that selective removal of h-2 from reaction zone obtained methane conversion much higher than thermodynamic control ones and co selectivity significantly lower than thermodynamic control values. for instance, 98.8% methane conversion, over 97.0% selectivity to co2 and over 95.0% h-2 recovery rate could be obtained under mild working conditions. the much higher performance of membrane reactor was attributed to the combination of hydrogen ultra-permeable pd-based membrane, highly active catalyst for methane steam reforming with countercurrent sweep gas flux design. further work on stability investigation may develop an efficient onsite route of hydrogen production for application to proton exchange membrane fuel cells. (c) 2007 published by elsevier b.v.
WOS标题词science & technology ; physical sciences ; technology
类目[WOS]chemistry, physical ; engineering, environmental ; engineering, chemical
研究领域[WOS]chemistry ; engineering
关键词[WOS]nickel-alumina catalysts ; fuel-cell applications ; high-temperature ; methane ; hydrocarbons ; dense ; simulation ; separation ; dehydrogenation ; conversion
收录类别SCI
原文出处true
语种英语
WOS记录号WOS:000257973300013
公开日期2010-11-30
源URL[http://159.226.238.44/handle/321008/100577]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China
推荐引用方式
GB/T 7714
Chen, Yazhong,Wang, Yuzhong,Xu, Hengyong,et al. Efficient production of hydrogen from natural gas steam reforming in palladium membrane reactor[J]. applied catalysis b-environmental,2008,81(3-4):283-294.
APA Chen, Yazhong,Wang, Yuzhong,Xu, Hengyong,&Xiong, Guoxing.(2008).Efficient production of hydrogen from natural gas steam reforming in palladium membrane reactor.applied catalysis b-environmental,81(3-4),283-294.
MLA Chen, Yazhong,et al."Efficient production of hydrogen from natural gas steam reforming in palladium membrane reactor".applied catalysis b-environmental 81.3-4(2008):283-294.

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来源:大连化学物理研究所

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