Effect of microchannel structure on the reaction performance of methanol steam reforming
Effect of microchannel structure on the reaction performance of methanol steam reforming
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微通道结构对甲醇水蒸气重整反应性能的影响
DOI：
10.1016/j.apenergy.2015.05.021
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发表时间：
2015-09-15
期刊：
影响因子：
11.2
通讯作者：
Zeng, Dehuai
中科院分区：
文献类型：
--
作者：
Pan, Minqiang;Wu, Qiuyu;Zeng, Dehuai
微通道反应器内甲醇水蒸气重整被认为是燃料电池供氢的有效方法之一。微通道结构对甲醇水蒸气重整反应性能有重要影响。通常采用平行且均匀分布的矩形截面微通道。本文选取了两种不同的微通道截面和四种不同的微通道分布，考察了微通道结构对甲醇水蒸气重整反应性能的影响。结果表明，微通道分布对甲醇水蒸气重整反应性能的影响要比微通道截面积的影响大得多。矩形截面的左疏右密和左右密分布反应性能较好，而在左方向上的密集分布和在右方向上的稀疏分布（DLSR）以及在上下方向上的均匀分布（EUU）具有齿交叉，部分有相对较好的表现。在所有的微通道结构中，无论是矩形截面还是锯齿形截面，ELR的甲醇水蒸气重整反应性能最好。(C)2015爱思唯尔有限公司版权所有。
Methanol steam reforming inside microchannel reactors is regarded as one of effective methods for supplying hydrogen for fuel cells. Microchannel structure plays an important role on the reaction performance of methanol steam reforming. Parallel and uniform-distributed microchannels with rectangular cross-section are generally adopted. In this work, two kinds of microchannel cross-sections and four kinds of microchannel distributions are selected to investigate the effect of microchannel structure on the reaction performance of methanol steam reforming. The result indicates that microchannel distribution shows much more influences on the reaction performance of methanol steam reforming than the microchannel cross-section. Sparse-distribution in the Left direction and Dense-distribution in the Right direction (SLDR) as well as Equal-distribution in the Left-Right direction (ELR) with rectangular cross-section present relatively good reaction performances, whereas Dense-distribution in the Left direction and Sparse-distribution in the Right direction (DLSR) as well as Equal-distribution in the Upside-Underside direction (EUU) with tooth cross-section have relatively good performances. ELR presents the best reaction performances of methanol steam reforming among all the investigated microchannel structures, whether rectangular or tooth cross-section. (C) 2015 Elsevier Ltd. All rights reserved.