Enhancement of dilute bio-ethanol steam reforming for a proton exchange membrane fuel cell system by using methane as co-reactant: Performance and life cycle assessment

被引：19
|
作者：
Authayanun, Suthida [1 ]
Suwanmanee, Unchalee [1 ]
Arpornwichanop, Amornchai [2 ]
机构：
[1] Srinakharinwirot Univ, Dept Chem Engn, Fac Engn, Nakhon Nayok 26120, Thailand
[2] Chulalongkorn Univ, Fac Engn, Dept Chem Engn, Computat Proc Engn Res Unit, Bangkok 10330, Thailand
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 36期
关键词：
PEMFC; Bio-ethanol; Methane; Steam reforming; Life cycle assessment; HYDROGEN-PRODUCTION; PRESSURE;
D O I：
10.1016/j.ijhydene.2015.07.042
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The fuel processor and a proton exchange membrane fuel cell (PEMFC) integrated process fueled by cassava based bio-ethanol and methane as co-reactant is theoretically investigated and compared with that run by dehydrated bio-ethanol in this work. The methane is added to bio-ethanol reformer as co-reactant to reduce dilution effect of crude bio-ethanol and adjust very high steam to carbon ratio of this system. The hydrogen fraction increases with the reformer temperature and methane to bio-ethanol ratio until reaching a maximum point. In addition, the optimal operating conditions of mixed bio-ethanol and methane reformer and dehydrated bio-ethanol reformer, which achieve the highest reformer efficiency, are presented. The results show that superior fuel processor efficiency, fuel cell efficiency and system efficiency are obtained when the mixed bio-ethanol and methane is used to generate hydrogen. The mixed bio-ethanol and methane reforming integrated with PEMFC system has the lower environmental impact, compared to the dehydrated bio-ethanol reforming integrated with PEMFC system. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：12144 / 12153
页数：10
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