Fluidized catalytic cracking regeneration process

Details Fluidized catalytic cracking regeneration process Fluidized catalytic cracking regeneration process

1976-05-07

1977-09-27

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

23288B, 23288S, 208113, 208120, 208164, 252419, B01J 2938, B01J 2120, C10G 1118

Patent

active

040510697

ABSTRACT:
A process is described herein for regeneration of spent, coke contaminated fluidized cracking catalyst by burning coke therefrom with a molecular oxygen containing regeneration gas in a fluidized dense phase bed, and for burning substantially all carbon monoxide formed to carbon dioxide. A method is provided for balancing oxygen concentration across the cross-sectional area of the dense phase bed, as is a method for supplying additional oxygen above the dense phase bed for combustion of carbon monoxide. Additionally, a method is provided for transferring heat from a dilute phase back to the fluidized dense phase bed.

REFERENCES:
patent: 2327175 (1943-08-01), Conn
patent: 2382382 (1945-08-01), Carlsmith et al.
patent: 3886060 (1975-05-01), Owen
patent: 3903016 (1975-09-01), Owen
patent: 3909392 (1975-09-01), Horecky, Jr. et al.
patent: 3923642 (1975-12-01), Luckenbach
patent: 3964876 (1976-06-01), James
patent: 3974091 (1976-08-01), Parker

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