Process for production of high octane gasoline from...

Details Process for production of high octane gasoline from... Process for production of high octane gasoline from...

C - Chemistry, Metallurgy

10

G

196/97

C10G 11/05 (2006.01) C10G 11/18 (2006.01)

Patent

CA 1152018

PROCESS FOR PRODUCTION OF HIGH OCTANE GASOLINE FROM CATALYTIC CRACKING UNIT ABSTRACT This invention provides an improvement in the operation of an FCCU such a to maintain the octane rating of the gasoline fraction from the cracker at a high level over repeated cycles of cracking charge and regeneration by using fresh zeolitic catalyst particles having an alkali metal oxide less than about 1.5% (based on the zeolite content) and controlling the amount of alkali metal oxide that comes into contact with catalyst inven- tory throughout cracking, stripping and regeneration so as to maintain alkali metal oxide content of equilibrium catalyst below 2.0%, based on the weight of zeolite in the fresh zeolitic catalyst.

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