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题名: Efficient production of hydrogen from natural gas steam reforming in palladium membrane reactor
作者: Chen, Yazhong1, 2;  Wang, Yuzhong1;  Xu, Hengyong1;  Xiong, Guoxing1
通讯作者: 徐恒泳
关键词: hydrogen production ;  methane steam reforming ;  palladium membrane reactor ;  nickel-based catalyst
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2008-06-24
DOI: 10.1016/j.apcatb.2007.10.024
卷: 81, 期:3-4, 页:283-294
收录类别: SCI
文章类型: Article
部门归属: 8,5
项目归属: 801,504
产权排名: 2;1
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
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.
关键词[WOS]: NICKEL-ALUMINA CATALYSTS ;  FUEL-CELL APPLICATIONS ;  HIGH-TEMPERATURE ;  METHANE ;  HYDROCARBONS ;  DENSE ;  SIMULATION ;  SEPARATION ;  DEHYDROGENATION ;  CONVERSION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000257973300013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100577
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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

Recommended Citation:
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.
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