Catalytic cracking apparatus employing mixed catalyst system

Details Catalytic cracking apparatus employing mixed catalyst system Catalytic cracking apparatus employing mixed catalyst system

1989-03-13

1990-10-09

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422143, 422145, 422147, F27B 1508

Patent

active

049619071

ABSTRACT:
A catalytic cracking process is disclosed which comprises catalytically cracking a hydrocarbon charge stock in a catalytic cracking unit possessing at least one reaction zone, stripping zone and catalyst regeneration zone to provide a gasiform product employing as catalyst a mixed catalyst system which comprises, as a first catalyst component, particles of a cracking catalyst which requires relatively frequent regeneration and is relatively hydrothermally stable, and as a second catalyst component, particles of a catalyst which requires less frequent regeneration than the first catalyst component, physical characteristics(s) of particles of first catalyst component differing sufficiently from physical characteristics(s) of particles of second catalyst component as to permit their separation in the stripping zone.

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