Fast start-up of microchannel fuel processor integrated with an igniter for hydrogen combustion

被引:30
|
作者
Ryi, Shin Kun
Park, Jong Soo
Cho, Song Ho
Kim, Sung Hyun
机构
[1] Korea Univ, Dept Chem & Biol Engn, Seoul 136701, South Korea
[2] Korea Inst Energy Res, Hydrogen Syst Res Ctr, Taejon 305343, South Korea
关键词
microchannel reactor; fuel processor; proton-exchange membrane fuel cell; hydrogen combustion; methane steam reforming; heat-exchanger;
D O I
10.1016/j.jpowsour.2006.06.036
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
A Pt-Zr catalyst coated FeCrAlY mesh is introduced into the combustion outlet conduit of a newly designed microchannel reactor (MCR) as an igniter of hydrogen combustion to decrease the start-up time. The catalyst is coated using a wash-coating method. After installing the Pt-Zr/FeCrAlY mesh, the reactor is heated to its running temperature within I min with hydrogen combustion. Two plate-type heat-exchangers are introduced at the combustion outlet and reforming outlet conduits of the microchannel reactor in order to recover the heat of the combustion gas and reformed gas, respectively. Using these heat-exchangers, methane steam reforming is carried out with hydrogen combustion and the reforming capacity and energy efficiency are enhanced by up to 3.4 and 1.7 times, respectively. A compact fuel processor and fuel-cell system using this reactor concept is expected to show considerable advancement. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1234 / 1240
页数:7
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