Cracking process and zsm-5 catalyst produced therefor

Details Cracking process and zsm-5 catalyst produced therefor Cracking process and zsm-5 catalyst produced therefor

C - Chemistry, Metallurgy

01

B

C01B 39/40 (2006.01) B01J 29/40 (2006.01) B01J 29/80 (2006.01) C07C 4/06 (2006.01) C10G 11/05 (2006.01) B01J 29/08 (2006.01)

Patent

CA 2141854

A process for converting feedstock hydrocarbon compounds to product hydrocarbon compounds having a lower molecular weight than the feedstock hydrocarbon compounds comprises contacting said feedstock at conversion conditions with a catalyst composition comprising a large-pore molecular sieve material and an additive catalyst composition comprising crystalline material having the structure of ZSM-5 and a silica/alumina mole ratio of less than 30, said crystalline material having, as-synthesized, the following formula on an anhydrous basis: (x)M2O: (0.2 to 1.4)R2O:Al2O3: (y)SiO2 wherein x is a number greater than 0.1; M is alkali or alkaline earth metal, R is n-propylamine, and y is a number less than 30, and said additive catalyst composition having an alpha value greater than 30.

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