Catalytic cracking process employing mixed catalyst system

Details Catalytic cracking process employing mixed catalyst system Catalytic cracking process employing mixed catalyst system

1987-09-02

1989-10-03

Caldarola, Glenn

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208158, 208 74, 208113, C10G 1118, C10G 3702

Patent

active

048714461

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 characteristic(s) of particles of first catalyst component differing sufficiently from physical characteristic(s) of particles of second catalyst component as to permit their separation in the stripping zone.

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