Two Dimensional Model of a Catalytic Plate Reactor for Methane Steam Reforming Using Different Kinetic Mechanisms

M.A. Mundhwa[1], C.P. Thurgood[1], and B.A. Peppley[2]
[1]Royal Military College of Canada, Kingston, ON, Canada
[2]Queen's University, Kingston, ON, Canada

Coupling of an endothermic reaction and an exothermic reaction using catalytic plate reactor (CPR) is a well known concept for industrial processes such as steam reforming, dehydrogenation and hydrocarbon cracking. In the CPR, the exothermic reaction (e.g., combustion of methane) can provide the necessary heat to drive the endothermic reaction (e.g., steam reforming of methane). The present work compares the performance of CPR reactor using different methane reforming kinetic models such as Xu & Froment, Hou & Hughes and Wei & Iglesia. A steady state two dimensional CPR model, which solves mass, momentum and energy balance, is developed for the methane steam reforming and methane combustion in COMSOL environment. The study indicates the different kinetic models give different conversion and temperature profile along the length of the reactor. Also conversion of methane due to co-current and counter current feed flow between the reforming and combustion channels and at different concentration of hydrogen inlet feed is studied using various kinetic models.

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