Fluidized cracking catalyst regeneration apparatus

Details Fluidized cracking catalyst regeneration apparatus Fluidized cracking catalyst regeneration apparatus

1976-05-07

1977-07-12

Scovronek, Joseph

Chemistry: physical processes

Physical processes

Crystallization

23288S, 208164, 252417, B01J 808, B01J 3712

Patent

active

040351530

ABSTRACT:
Apparatus 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 to carbon dioxide. Means are provided for transferring heat from the top of said regeneration apparatus to the bottom, employing catalyst as the transfer medium. Additionally, means are provided for maintaining a homogeneous fluidized dense phase bed of catalyst undergoing regeneration. Also, conical standpipe means is provided for deaerating regenerated catalyst.

REFERENCES:
patent: 2422793 (1947-06-01), McAfee
patent: 2446247 (1948-08-01), Scheineman
patent: 2610909 (1952-09-01), Hunter
patent: 2879145 (1959-03-01), Rice
patent: 3826624 (1974-07-01), Jones et al.
patent: 3903016 (1975-09-01), Owen
patent: 3953175 (1976-04-01), Pulak

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