FCC process with concentrators on cyclone inlets

Details FCC process with concentrators on cyclone inlets FCC process with concentrators on cyclone inlets

1993-01-08

1994-03-01

Konopka, Paul E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208113, 208120, 209133, 209143, 422144, 502 21, 502 41, C10G 1118, B01J 3872, B01J 3830, F27B 1508

Patent

active

052904318

ABSTRACT:
A multi-stage cyclone for fluidized catalytic cracking of heavy oils is disclosed. A low efficiency inertial separator concentrates solids, FCC catalyst and fines, by forcing gas and entrained solids to make from 1/2 to 3/4 turn. Gas, with most of the solids content removed, is charged directly into the inlet horn of a conventional high efficiency cyclone. The solids concentrator/cyclone device may be used in FCC regenerators or reactors to reduce particulate losses, reduce catalyst attrition, and reduce erosion of cyclones caused by high catalyst loadings.

REFERENCES:
patent: 2727930 (1955-12-01), Johnson
patent: 3554903 (1971-01-01), Wilson
patent: 4176083 (1979-11-01), McGovern
patent: 5126036 (1992-06-01), Owen
Perry's Chemical Engineer's Handbook, 6th Edition, 20-101 (1984).
Perry's Chemical Engineer's Handbook, 6th Edition, 20-84/85 (1984).

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