B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
196/106, 252/1.E
B01J 37/14 (2006.01) B01J 8/24 (2006.01) B01J 23/90 (2006.01) B01J 29/90 (2006.01) B01J 37/04 (2006.01) C10G 11/18 (2006.01)
Patent
CA 1048009
Abstract of the Disclosure An improved fluid catalytic cracking process comprises a method for the regeneration of the fluidizable hydrocarbon conversion catalyst, particularly of the molecular sieve type, which has been deactivated with coke deposits while employed in a hydrocarbon catalytic cracking process, in which the coke-containing hydrocarbon conversion catalyst is contacted with an oxygen-containing gas to burn the coke from the catalyst under conditions supporting substantially complete combustion of carbon monoxide. In the regenerator, the hydrocarbon conversion catalyst is primarily in physical (rather than chemical) association with an oxidation catalyst which promotes the combustion of carbon monoxide to carbon dioxide. Evolved heat is recovered by direct heat transfer to the catalyst, for example within a dilute or dense phase zone in the regenerator vessel. The gaseous effluent from the regener- ator has a low content of carbon monoxide and may be discharged directly to the atmosphere with little discernible effect upon ambient air quality. The regenerated hydrocarbon conversion catalyst may have less than about 0.05 weight percent coke thereon.
220983
Bertolacini Ralph J.
Forsythe William L. (jr.)
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