Russian Journal of Physical Chemistry B

, Volume 8, Issue 5, pp 651–656 | Cite as

Numerical simulation of catalytic combustion of methane using washcoat model and external model: a comparison study

  • Yang Du
  • Pei Wen Wang
  • Wei Dong Shen
  • Jia Feng Xu
Kinetics and Mechanism of Chemical Reactions. Catalysis


This paper presents a comparison study of numerical simulation of catalytic combustion of methane on Pt catalyst using two different physical models. The external surface model and the washcoat model were employed. The simulations were conducted in a two-dimensional monolith reactor with detail surface kinetics. The agreement of simulation results of the washcoat model with the measured data is good. However, in contrast to experimental data, the external surface method will produce a lower result of conversion of CH4 at low temperature due to the neglecting of the larger inner surface of the washcoat. Moreover, the effects of specific surface area and pore size of washcoat on reaction rate were discussed. It can be concluded that the washcoat model would provide a more realistic result and can enrich the contents of numerical simulation of catalytic reaction.


washcoat catalytic combustion mass transfer porous media physical model 


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Copyright information

© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  • Yang Du
    • 1
  • Pei Wen Wang
    • 1
    • 2
  • Wei Dong Shen
    • 2
  • Jia Feng Xu
    • 1
    • 2
  1. 1.Department of Military Petroleum Supply EngineeringLogistical Engineering UniversityChongqingChina
  2. 2.Key Laboratory of Special Power Supply of PLAChongqing Communication InstituteChongqingChina

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