Dehydroaromatization of methane over noble metal loaded Mo/H-ZSM-5 zeolite catalysts

Abstract Dehydroaromatization of methane (MDA) reaction was investigated over platinum modified Mo/H-ZSM-5 catalysts which were pre-carbided at 750 °C. The influence on the catalytic performance and product selectivity for MDA 700 °C studied. presence led to a slight decrease in conversion from 7.5 4.2%. Aromatic selectivities above 90% obtained with containing low loadings (0.5 1.0 wt.%), benzene being most prominent product. A coke deposits noted zeolite catalysts. comparative study performed compare platinum, palladium ruthenium promoted un-promoted Mo/H-ZSM-5. catalyst proved be superior performance, higher than that found Benzene about 60% Mo/H- ZSM-5 total aromatic maintained 90%. TGA results showed reduction 50% by weight carbon deposited catalyst. Graphic abstract