Design of highly stable metal/ZSM-5 catalysts for the shape-selective alkylation of toluene with methanol to para-xylene

The co-existence of (Pt + Ni) effectively inhibits the formation of low-carbon olefins during the alkylation of toluene with methanol via the dehydrogenation of methanol to carbon oxides and also the hydrogenation of olefins to paraffins.