Influence of zeolite crystallite size on methyl-cyclohexane catalytic conversion products

► We show USY crystallite sizes have an effect on MCH catalytic conversion products. ► Bi-molecular reactions between adsorbed species are promoted in larger crystallites. ► Hydrogen transfer, ring opening and transalkylation are affected by zeolite sizes. ► A cracking model including adsorption and reaction gives intrinsic kinetic constants.