Method of regenerating coke-contaminated catalyst with...

Details Method of regenerating coke-contaminated catalyst with... Method of regenerating coke-contaminated catalyst with...

B - Operations, Transporting

01

J

252/1.E

B01J 37/14 (2006.01) B01J 23/96 (2006.01) B01J 38/36 (2006.01) C10G 11/18 (2006.01)

Patent

CA 1074763

ABSTRACT OF THE DISCLOSURE A method for regenerating a coke-contaminated cracking cata- layst with the simultaneous carefully controlled combustion of CO to CO2 within a regeneration zone to produce regenerated catalyst and flue gas. Novel features of the method include adding to the regeneration zone, independently of the cracking catalyst, a CO oxidation promoter and com- busting CO to CO2 in the presence of the promoter and regenerated cata- lyst. The oxidation promoter may be added to the regeneration zone in amounts to control the CO concentration in the flue gas, a regeneration zone temperature, or the residual carbon concentration on regenerated catalyst.

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