Title: Reducing the temp. in a regeneration zone of a fluid catalystic cracking process
Application Number: 86100906 Application Date: 1986.02.01
Publication Number: 1002884 Publication Date: 1986.09.03
Approval Pub. Date: 1990.01.17 Granted Pub. Date: 1990.01.17
International Classifi-cation: C10G11/18
Applicant(s) Name: UOP Inc. Address:
Inventor(s) Name: Gregory J. Thompson;Robert A. Lengemann;anthony g.
Attorney & Agent: LUO HONG
Abstract:
    A method for operating a fluid catalytic cracking unit comprising a regeneration zone and a reaction zone with a relatively reduced temperature in the regeneration zone while processing a hydrocarbon feedstock having a 50 volume percent distillation temperature greater than about 500 DEG F. which method comprises contacting the feedstock in a reaction zone with a mixture of regenerated fluidizable cracking catalyst and fluidizable low coke make solid particles; separating the resulting vaporized hydrocarbon products; recovering the resulting vaporized hydrocarbon products; passing the mixture of cracking catalyst and low coke made solid particles to the regeneration zone for regeneration; and passing the resulting regenerated mixture to the reaction zone to contact the feedstock as described above whereby the regeneration zone temperature is maintained at a reduced temperature as compared to an equivalent operation without the use of the fluidizable low coke make solid particles while simultaneously not affecting the operation of the reaction zone.
Time: 5