Mineral oils: processes and products – Chemical conversion of hydrocarbons – Solids contacting and mixing
Patent
1993-05-28
1994-12-13
Lieberman, Paul
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Solids contacting and mixing
208113, 554591, 2105121, 210787, 210788, B01D 2126, B01D 4512, B04C 100
Patent
active
053727070
ABSTRACT:
A "leaking" cyclone and process for fluidized catalytic cracking of heavy oils is disclosed. Gas and entrained solids are added tangentially to swirl around a vapor outlet tube in a cylindrical tube cyclone body. A concentrated stream of solids and some gas is withdrawn from the device through openings in the cylindrical sidewall remote from the inlet. Tangential withdrawal via an offset slit in the sidewall, or withdrawal through holes in the sidewall, replaces or reduces conventional underflow of solids from an end of the cyclone body. Fine (0-5 micron) particles removal is enhanced by withdrawing solids as soon as solids reach the cylindrical sidewall. The device may be used as a third stage separator on an FCC regenerator.
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Buchanan J. Scott
Raterman Michael F.
Smalley Christopher G.
Hailey Patricia
Keen Malcolm D.
Lieberman Paul
McKillop Alexander J.
Mobil Oil Corporation
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