Ebullated bed process with recycle eductor

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

1993-03-17

1995-02-14

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208153, 208158, C10G 1302

Patent

active

053892380

ABSTRACT:
In an ebullated bed process the feedstock conduit is provided with at least 50 psi (4.4 atm) head in excess of a liquid-vapor separation pressure. The excess head is used in combination with an eductor to recycle a reactor effluent liquid. The expanded catalyst bed is thereby maintained at 110 vol % to vol % of a settled catalyst volume. A separate pump to expand (ebullate) the catalyst bed is not required.

REFERENCES:
patent: 3363992 (1968-01-01), Chervenak
patent: 3617524 (1971-11-01), Conn
patent: 3680217 (1972-08-01), Chapman
patent: 3868761 (1975-06-01), Stewart
patent: 4684456 (1987-08-01), Van Driesen et al.
patent: 4705627 (1987-11-01), Miwa et al.

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