A Revised Kinetic Model for the Catalytic Partial Oxidation of Methane.

The reaction scheme of the partial oxidation of methane is still currently undetermined for many catalysts due to a lack of accurate experimental data to develop kinetic studies. In this work, a kinetic modeling study of partial oxidation of methane was performed using experimental data from the literature. A kinetic model is proposed, and a new set of kinetic parameters was obtained in view of the failed reproduction of a model from the literature. The kinetic parameters of the proposed model were calculated and determined by using an optimization approach based on non-lineal parameter estimation, proper selection of initial values of parameters, and sensitivity and statistical analyses. Experimental data from the literature obtained in a packed-bed reactor with a Pt/Al2O3 catalyst at reaction temperatures of 465-574 °C were used to develop the kinetic model. Experimental data were accurately predicted by the proposed model with determination coefficient of 0.988.