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STUDY ON CATALYTIC ACTIVITY OF SAPO-46 MOLECULAR SIEVE FOR THE REACTION OF METHANOL TO OLEFINS

Landong Li

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Abstract

Aluminum phosphate molecular sieve SAPO-46 with topology of AFS was synthesized hydrothermally by using di-n-propylamine as template.Effects of Si amount in the synthesis system on the structure and acidity of SAPO-46 were investigated.The phsico-chemical properties of SAPO-46 were characterized by XRD,SEM and NH3-TPD.In catalytic reaction of MTO(methanol-to-olefins),SAPO-46 exhibited high initial activity,and the selectivities to C=2,C=3 olefins were high.

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What this paper is about

Aluminum phosphate molecular sieve SAPO-46 with topology of AFS was synthesized hydrothermally by using di-n-propylamine as template.Effects of Si amount in the synthesis system on the structure and acidity of SAPO-46 were investigated.The phsico-chemical properties of SAPO-46 were characterized by XRD,SEM and NH3-TPD.In catalytic reaction of MTO(methanol-to-olefins),SAPO-46 exhibited high initial activity,and the selectivities to C=2,C=3 olefins were high.

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Available abstract

Aluminum phosphate molecular sieve SAPO-46 with topology of AFS was synthesized hydrothermally by using di-n-propylamine as template.Effects of Si amount in the synthesis system on the structure and acidity of SAPO-46 were investigated.The phsico-chemical properties of SAPO-46 were characterized by XRD,SEM and NH3-TPD.In catalytic reaction of MTO(methanol-to-olefins),SAPO-46 exhibited high initial activity,and the selectivities to C=2,C=3 olefins were high.

Key concepts: Molecular sieve, Catalysis, Methanol, Propylamine, Aluminium phosphate, Chemistry, Nuclear chemistry, Inorganic chemistry

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