Formal treatment of catalytic combustion and catalytic conversion of methane

Catalytic combustion and conversion of methane is investigated numerically for transient one-dimensional flow confrgurations (catalytic foil and catal ytic wire). The reactive flow is coupled with the processes at the gas-surf ace interface. The analyses include detailed reaction mechanisms in the gas phase and on the surface as well as a detailed transport model. Computatio nal tools are applied to study the ignition of heterogeneous methane oxidat ion on a platinum foil and the transition from heterogeneous to homogeneous combustion in this system. Furthermore, the interaction of gas phase and s urface reactions in catalytic conversion of methane is considered. Time-dep endent selectivity and conversion are calculated. (C) 1998 Elsevier Science B.V. All rights reserved.