Determination of the reaction region for isomerization of xylenes on H-form Y zeolite

Article abstract of DOI:10.1007/BF00952608

1. Intracrystal diffusion of the reagent molecules does not constitute a limiting factor in the isomerization of xylenes on HY zeolite in an impulse microreactor at 350-500°C. 2. The different variants of the dependence of the general and observed specific activities of a zeolite catalyst on the number of active centers have been considered and it has been shown that on the basis of the criteria suggested one can in most cases reliably judge whether the reaction is proceeding in the kinetic or the diffusion region.