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题名: Exergy analysis and optimization of methanol generating hydrogen system for PEMFC
作者: Wang, Sheng;  Wang, Shudong
通讯作者: 王树东
关键词: generating hydrogen ;  exergy analysis ;  system optimization
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2006-09-01
DOI: 10.1016/j.ijhydene.2005.12.005
卷: 31, 期:12, 页:1747-1755
收录类别: SCI
文章类型: Article
部门归属: 9
项目归属: 901
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: An exergy analysis of methanol autothermal generating hydrogen system for PEMFC is presented. The process combines a catalytic combustion heat exchanger (CCHE), using partial off-gases containing hydrogen as feedstock, with an auto-thermal reformer (ATR), two water gas shift (WGS) reactors and four preferential oxidation (PROX) reactors. Energy and exergy of system were calculated and analyzed. The results demonstrated that inner exergy losses resulted from the irreversible heat transfer and reaction were the dominant factors. The most important destruction of exergy within the system was found to occur in the reformer and the catalytic combustion heat exchanger. Their ratios of exergy loss accounted for 25.03% and 24.95%, respectively, of the whole system. Based on results of thermodynamic and exergetic analysis, the reformer was optimized. The optimal W/M (molar water to methanol) is around 1.5-2.0 and AIM (molar air to methanol) is around 1.5. Certain recommendations were posed. The conclusions could help to optimize methanol autothermal generating hydrogen system for PEMFC. (c) 2006 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: FUEL-CELL ;  THERMODYNAMIC ANALYSIS ;  OPERATING-CONDITIONS ;  ENERGY ;  ETHANOL
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000241127800014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97745
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

Recommended Citation:
Wang, Sheng,Wang, Shudong. Exergy analysis and optimization of methanol generating hydrogen system for PEMFC[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2006,31(12):1747-1755.
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