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

	Efficient production of hydrogen from natural gas steam reforming in palladium membrane reactor
	Chen, Yazhong 1,2; Wang, Yuzhong 1; Xu, Hengyong 1; Xiong, Guoxing 1
刊名	applied catalysis b-environmental
	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
通讯作者	徐恒泳
产权排序	2;1
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
内容类型	期刊论文
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.