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The Characteristics of CH4-Vapor Catalytic Reforming Reaction Considering CO2 and CH4 Reaction in the Micro-Chamber

[+] Author Affiliations
Jing-Yu Ran, Li-Xiang Niu, Qiang Tang, Li Zhang

Chongqing University, Chongqing, China

Paper No. ICNMM2007-30143, pp. 101-107; 7 pages
doi:10.1115/ICNMM2007-30143
From:
  • ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels
  • ASME 5th International Conference on Nanochannels, Microchannels, and Minichannels
  • Puebla, Mexico, June 18–20, 2007
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4272-X | eISBN: 0-7918-3800-5
  • Copyright © 2007 by ASME

abstract

Methane and vapor catalytic-reaction is a complex reaction system, and especially CH4 /CO2 reaction has an important influence to the methane/vapor reforming reaction. In this paper, the reaction character for methane and vapor catalytic reforming reaction in the micro-chamber wall with Ni catalyst is numerically investigated. The results show that the CH4 /CO2 reaction has a vital influence on reactive characteristics in the different H2 O/CH4 mole ratio and the mass flow-rate. With increasing the H2 O/CH4 mole ratio, the concentration of H2 and CO2 increases, the concentration of CO increases and then decreases, but if the H2 O/CH4 mole ratio is more than 2.5, the result is different. The reaction efficiency will descend while the flow-rate increases. The results also display that the methane conversion ratio, the vapor conversion ratio, and the hydrogen concentrations can be up to 81.73%, 69.42%, and 4.29%, while the H2 O/CH4 mole ratio, flow-rate and methane/vapor mass flow-rate ratio are 2.5, 7 g/h and 0.1 respectively.

Copyright © 2007 by ASME

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