Process for mixing fluid catalytic cracking hydrocarbon feed and

Details Process for mixing fluid catalytic cracking hydrocarbon feed and Process for mixing fluid catalytic cracking hydrocarbon feed and

1987-05-15

1988-01-05

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208157, 208153, C10G 1118

Patent

active

047174676

ABSTRACT:
A process and apparatus for mixing fluid catalytic cracking hydrocarbon feed and catalyst is disclosed. The invention passes lift gas through a first conduit which is axially aligned with a second conduit. A downstream end of the first conduit and an upstream end of the second conduit are located within a catalyst bed enclosed by a chamber. Furthermore, the second conduit axially injects catalyst and lift gas into an upstream end of an elongated fluid catalytic cracking riser while passing hydrocarbon feed into the riser through an annular zone about the upstream end of the riser. Preferably steam also passes through this annular zone. The process and apparatus achieves substantially uniform catalyst-to-oil ratio across a horizontal cross-section of the riser. A process and apparatus for control of the level of the catalyst bed in the enclosed chamber by employing a control gas stream is also disclosed.

REFERENCES:
patent: 2905517 (1961-05-01), Harper
patent: 3408286 (1968-10-01), Hepp
patent: 3617497 (1971-11-01), Bryson
patent: 3894932 (1975-07-01), Owen
patent: 3966586 (1976-06-01), Owen et al.
patent: 3974062 (1976-08-01), Owen et al.
patent: 4002557 (1977-01-01), Owen et al.
patent: 4012455 (1977-03-01), Owen et al.
patent: 4035285 (1977-07-01), Owen et al.
patent: 4051013 (1977-09-01), Strotner
patent: 4331533 (1982-05-01), Dean et al.
patent: 4427537 (1984-11-01), Dean et al.
patent: 4523987 (1985-06-01), Denick
patent: 4562046 (1985-12-01), Hays et al.

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