Apparatus and process for downflow fluid catalytic cracking

Details Apparatus and process for downflow fluid catalytic cracking Apparatus and process for downflow fluid catalytic cracking

2006-08-08

2006-08-08

Griffin, Walter D. (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C422S139000, C422S141000, C422S144000, C422S147000

Reexamination Certificate

active

07087154

ABSTRACT:
An apparatus for downflow fluid catalytic cracking is described, which comprises a regenerated catalyst riser carrying regenerated catalyst and a carrying fluid, those being directed through a crossover section to a distributor that will centrifuge gas and separate catalyst from carrying fluid, the catalyst being directed to a downflow reactor through a distributing basket provided with perforations. The upper part of the reactor is provided with feed injectors, which atomize the feed so that feed vaporization and feed and catalyst admixture is optimized. After the cracking reaction in downflow reactor, reaction products are separated and spent catalyst is directed to stripping and regeneration sections. The FCC process carried out in the apparatus is also described.

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