Ebullated bed process with recycle eductor

Details Ebullated bed process with recycle eductor Ebullated bed process with recycle eductor

1993-09-02

1994-11-01

Pal, Asok

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208158, 208103, 208104, 208105, 208102, C10G 4916, C10G 4922

Patent

active

053605357

ABSTRACT:
In an ebullated bed process reactor effluent is subjected to high pressure followed by intermediate flash separation. An ebullation liquid is formed by educting high pressure flash separation liquid into an intermediate flash separation liquid. The ebullation liquid is recycled to the reactor to expand the catalyst bed to 110 vol % to 200 vol % of a settled catalyst bed volume. As a result of recycle pressure balance is advantageously maintained. Carry over catalyst and catalyst fines are recycled to the reactor and kept out of downstream equipment.

REFERENCES:
patent: 3617524 (1971-11-01), Conn
patent: 4124496 (1978-11-01), Cummings
patent: 4410414 (1983-10-01), Briley
patent: 4925573 (1990-05-01), Yorlow
Ahmed, Tarek, Hydrocarbon Phase Behavior, Contributions in Petroleum Geology & Engineering, v. 7, pp. 275-281, Gulf Publishing Co. (1989).

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