Fluid cracking process and the method for separating a suspensio

Details Fluid cracking process and the method for separating a suspensio Fluid cracking process and the method for separating a suspensio

1978-01-20

1980-08-26

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

55 17, 55461, 55466, 208153, 208161, 208164, 252417, B01D 4506, B01J 3714, C10G 1118

Patent

active

042194075

ABSTRACT:
A riser cracking-catalyst regeneration operation is described wherein a suspension discharged from a riser operation is separated by catalyst particle concentrating means which discharge a concentrated stream of catalyst separated from gasiform material into a downcomer zone and out of further contact with discharged gasiform material in the suspension. A stripping gas is used to particularly aid the separation of catalyst and hydrocarbon vapors.

REFERENCES:
patent: 2888096 (1959-05-01), Evans
patent: 3261776 (1966-07-01), Baumann et al.
patent: 4035284 (1977-07-01), Gross et al.

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