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Microwave synthesis and catalytic performance of ZSM-5/MCM-41 composite molecular sieves

Miao Cui, Guida Sun

Abstract

ZSM-5/MCM-41 composite molecular sieves were synthesized by microwave method using ZSM as silica aluminum source and characterized by XRD,BET and NH_3-TPD.The catalytic activity of ZSM-5/MCM-41 for o-xylene isomerization was investigated in impulse microreactor.The results indicated that activity of ZSM-5/MCM-41 was superior to that of MCM41,ZSM-5 and ZSM-5/MCM41 prepared by mechanical mixing with the same silica/aluminum molar ratio,with different physicochemical properties.

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Available abstract

Key concepts: Molecular sieve, Catalysis, ZSM-5, MCM-41, Isomerization, Composite number, Microwave, Aluminium