Resistance against Carbon Deposition via Controlling Spatial Distance of Catalytic Components in Methane Dehydroaromatization

Molybdenum-zeolite catalysts always suffer from severe carbon deposition and rapid deactivation in the methane dehydroaromatization (MDA) process. Herein, we present a strategy that controls spatial distance between Mo species HMCM-22 zeolite over Mo/HMCM-22 catalysts, to inhibit deposition. Our characterization analyses demonstrate possess same active components, but plays key role determining product selectivity MDA The performance reveals Mo/HMCM-22-MM (mechanical milling) catalyst, with medium zeolite, significantly inhibits produces high benzene. This work shows molybdenum is an important property for suppressing improving benzene