Formal treatment of catalytic combustion and catalytic conversion of methane

Abstract

Catalytic combustion and conversion of methane is investigated numerically for transient one-dimensional flow configurations (catalytic foil and catalytic wire). The reactive flow is coupled with the processes at the gas–surface interface. The analyses include detailed reaction mechanisms in the gas phase and on the surface as well as a detailed transport model. Computational tools are applied to study the ignition of heterogeneous methane oxidation on a platinum foil and the transition from heterogeneous to homogeneous combustion in this system. Furthermore, the interaction of gas phase and surface reactions in catalytic conversion of methane is considered. Time-dependent selectivity and conversion are calculated.