Low-temperature catalytic combustion of methane over noble metal catalyst

Though higher activity contributes to efficient conversion of methane for noble metal catalysts, poor thermal stability restrains their applications in the removal of VOC and ventilation air methane. So many researches focus on the improvement of their stability. The influences of active components, carriers, additives and precursors on catalytic behaviors over methane combustion catalysts, particularly, Pd catalysts, are examined. Inhibition and promotion of reactive species on methane combustion reaction are analyzed on the basis of the kinetic parameters induced. In conclusion I the deactivation mechanisms are indicated for Pd catalysts, and the reasons resulted in great discrepancy on the results studied are pointed out. Solution to higher availability and reproducibility of research results is proposed.