Facile fabrication of mesopore-containing ZSM-5 zeolite from spent zeolite catalyst for methanol to propylene reaction

Abstract

A facile and eco-friendly approach for the synthesis of mesoporecontaining ZSM-5 zeolite with small crystal size was proposed by subtly making use of a coke-deposited spent zeolite catalyst.When used in the methanol to propylene reaction again, the refabricated ZSM-5 catalyst exhibited a much higher propylene selectivity and a longer catalytic lifetime. † Electronic supplementary information (ESI) available: Experimental details on the synthesis and characterization of zeolite, physicochemical properties of the spent catalyst, pore size distribution curves and NH 3 -TPD profiles of the as-synthesized ZSM-5 zeolites. See

Thermodynamic equilibrium distribution of light olefins in catalytic pyrolysis

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