Method and apparatus for cracking residual oils

Details Method and apparatus for cracking residual oils Method and apparatus for cracking residual oils

1980-07-15

1982-06-22

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208113, 208120, 208161, 208164, 422144, 422145, B01J 2120, B01J 2938, C10G 1118, C10G 1104

Patent

active

043361609

ABSTRACT:
A side by side hydrocarbon conversion-two staged stacked catalyst regeneration arrangement is provided wherein the first stage of catalyst regeneration is temperature restricted to achieve incomplete removal of carbon deposits and a second higher temperature regeneration is accomplished in an upflowing catalyst contact system under conditions to accomplish removal of residual carbon on the catalyst and produce a CO.sub.2 -rich flue gas. A special external cyclone separator arrangement may be attached to either of the second stage regeneration operation or the riser hydrocarbon conversion operation to effect separation of catalyst particles from gasiform material.

REFERENCES:
patent: 2398739 (1946-04-01), Greensfelder et al.
patent: 2438439 (1948-03-01), Hemminger
patent: 2475650 (1949-07-01), Thompson et al.
patent: 3563911 (1971-02-01), Pfeiffer et al.
patent: 3919115 (1975-11-01), Stine et al.
patent: 3964876 (1976-06-01), James
patent: 4176084 (1979-11-01), Luckenbach

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