Quenched multistage FCC catalyst stripping

Details Quenched multistage FCC catalyst stripping Quenched multistage FCC catalyst stripping

1993-01-08

1994-06-14

Breneman, R. Bruce

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With prevention or removal of deleterious carbon...

208113, 208118, C10G 1100, C10G 1105, C10G 1118

Patent

active

053207408

ABSTRACT:
Catalyst stripping in the fluid catalytic cracking process is improved by cooling the spent catalyst to quench catalytic condensation reactions, then stripping the cooled catalyst in a primary stripper, followed by heating and a stage of hot stripping. Quenched stripping reduces coke make by reducing conversion of light olefins, made during the FCC process, into coke.

REFERENCES:
patent: 4481103 (1984-11-01), Krambeck et al.
patent: 4789458 (1988-12-01), Haddad et al.
patent: 4978440 (1990-12-01), Krambeck et al.
patent: 5043058 (1991-08-01), Forgac et al.

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