Standard Oil Company (Indiana)

Chuan-Kang R Hsieh

Iacovos A Vasalos

William D Ford

A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with regenerable, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a cracking catalyst, (2) a metallic reactant which reacts with a sulfur oxide to form a metal- and sulfur-containing compound in the solid particles, and (3) a metallic oxidation promoter.

Catalytic cracking with reduced emission of noxious gases

A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with homogeneous or non-homogeneous, regenerable, 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 distributed throughout said matrix and (2) a metallic reactant which reacts with a sulfur oxide to form a metal- and sulfur-containing compound in the solid particles. The method involves regeneration 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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Naperville, IL, United States of America

Chuan-Kang R Hsieh