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Qualitative Investigation on Effects of Manifold Shape on Methanol Steam Reforming for Hydrogen Production
PAN Minqiang 1 * #,ZENG Dehuai 2,TANG Yong 3
1.Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes, South China University of Technology
2.School of Mechatronics and Control Engineering, Shenzhen University, Shenzhen518060, China
3.Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes, South China University of Technology, Guangzhou510640, China
*Correspondence author
#Submitted by
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Funding: This research was supported by the National Nature Science Foundation of China（No.Project No.50805052 and No.50930005）, the Doctoral Program of Ministry of Education of China（No.Project No. 200805611089）, the Fundamental Research Funds for the Central Universities, SCUT（No.Project No. 2009ZM0134）
Opened online:11 May 2011
Accepted by: none
Citation: PAN Minqiang,ZENG Dehuai,TANG Yong.Qualitative Investigation on Effects of Manifold Shape on Methanol Steam Reforming for Hydrogen Production[OL]. [11 May 2011] http://en.paper.edu.cn/en_releasepaper/content/4425001
 
 
Fluid velocity distribution among microchannels plays important role on the reaction performances. In this work, the velocity distribution among microchannels with two different manifold structures is compared by a three-dimensional CFD model under two situations respectively, no reaction and methanol steam reforming occurs. Then the performances of methanol steam reforming in both plates are experimentally investigated, and the effect of manifold shape on the hydrogen production performances is qualitatively analyzed by the combination of simulation results of velocity distribution. It is found that the microchannel plate with right-angle manifold enables narrow velocity distributions under different entrance velocities and reaction temperatures, whether no reaction occurs or methanol steam reforming is progressing, which can be the critical element results in better conversion rate and selectivity of process than that of the microchannel plate with oblique-angle manifold. Optimizing the structural parameters to facilitate a relatively uniform velocity distribution to increase the hydrogen production performances may be a key factor to be considered.
Keywords:methanol steam reforming; velocity distribution; hydrogen production
 
 
 

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