Catalytic cracking with reduced emission of noxious gases

Details Catalytic cracking with reduced emission of noxious gases Catalytic cracking with reduced emission of noxious gases

B - Operations, Transporting

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252/4, 196/96

B01J 29/06 (2006.01) B01J 8/28 (2006.01) C10G 11/02 (2006.01) C10G 11/05 (2006.01) C10G 11/18 (2006.01)

Patent

CA 1093050

CATALYTIC CRACKING WITH REDUCED EMISSION OF NOXIOUS GASES ABSTRACT A cyclic, fluidized catalytic cracking process providing re- duced emissions of noxious effluents in regeneration zone flue gases is operated with homogeneous or non-homogeneous, regener- able, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a molecular sieve-type cracking catalyst, comprising a cracking catalyst matrix containing crystalline aluminosilicate distri- buted throughout said matrix and (2) a metallic reactant which reacts with a sulfur oxide to form a metal- and sulfur- contain- ing compound in the solid particles. The method involves regen- eration of the cracking catalyst in the presence of a metallic oxidation promoter which can also be a component of the solid particles.

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