A comparative simulation study of methane steam reforming in a porous ceramic membrane reactor using nitrogen and steam as sweep gases
A comparative simulation study of methane steam reforming in a porous ceramic membrane reactor using nitrogen and steam as sweep gases
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DOI：
10.1016/j.ijhydene.2007.10.015
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发表时间：
2008
影响因子：
7.2
通讯作者：
W. Yu;T. Ohmori;S. Kataoka;Takuji Yamamoto;A. Endo;M. Nakaiwa;N. Itoh
中科院分区：
文献类型：
--
作者：
W. Yu;T. Ohmori;S. Kataoka;Takuji Yamamoto;A. Endo;M. Nakaiwa;N. Itoh
通过数值模拟对多孔陶瓷膜反应器以氮气和水蒸气为扫气进行甲烷水蒸气重整反应的性能进行了对比研究。采用考虑热效应的一维拟均相模型来描述膜反应器的行为。结果表明，在考察的大部分操作参数中，包括反应温度、进料流量、扫气流量和操作方式，采用水蒸气作为扫气在甲烷转化率和氢气回收率方面表现出较好的性能。在所考虑的条件下，对于氮气和蒸汽作为扫掠气体，逆流流动模式的效果都好于并流流动模式。
Comparative studies were carried out via numerical simulation to analyze the performances of a porous ceramic membrane reactor for methane steam reforming using nitrogen and steam as sweep gases. A one-dimensional pseudo-homogeneous model taking into account the thermal effect was used to describe the behavior of the membrane reactor. As a result, the use of steam as the sweep gas showed the better performance in terms of methane conversion and hydrogen recovery yield, for most of the operating parameters investigated including the reaction temperature, the feed flow rate, as well as the sweep gas flow rate and the operation mode. The counter-current flow mode was found to perform better than the co-current flow mode for both nitrogen and steam as the sweep gases under the conditions considered.