CO selective oxidation in a microchannel reactor for PEM fuel cell

被引:124
|
作者
Chen, GW [1 ]
Yuan, Q [1 ]
Li, HQ [1 ]
Li, SL [1 ]
机构
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
基金
中国国家自然科学基金;
关键词
hydrogen generation; CO preferential oxidation; microchannel reactor; autothermal reforming; washcoating; carbon monoxide oxidation;
D O I
10.1016/j.cej.2004.01.020
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
It is indispensable to remove CO at the level of less than 50ppm in H-2-rich feed gas for the proton exchange membrane (PEM) fuel cells. In this paper, catalyst with high activity and selectivity, and a microchannel reactor for CO preferential oxidation (PROX) have been developed. The results indicated that potassium on supported Rh metal catalysts had a promoting effect in the CO selective catalytic oxidation under H-2-rich stream, and microchannel reactor has an excellent ability to use in on-board hydrogen generation system. CO conversion keeps at high levels even at a very high GHSV as 500 000 h(-1), so, miniaturization of hydrogen generation system can be achieved by using the microchannel reactor. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:101 / 106
页数:6
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