Resid catalytic cracking process utilizing ZSM-5 for increased g

Details Resid catalytic cracking process utilizing ZSM-5 for increased g Resid catalytic cracking process utilizing ZSM-5 for increased g

1988-03-29

1989-09-19

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 52CT, C10G 1105

Patent

active

048678635

ABSTRACT:
A process for catalytically cracking deep cut vacuum gas oils, resids, or other reduced crudes containing metal contaminants to increase gasoline octane. Hydrocarbon feedstocks which include vanadium and sodium contaminants are introduced into the reaction zone of a catalytic cracking unit. Catalytic cracking catalysts which include a ZSM-5 type catalytic component are contacted in the reaction zone with the metals-containing hydrocarbon feedstock. The hydrocarbon feedstock is cracked at high temperature by the cracking catalysts, resulting in increased gasoline octane, and surprising tolerance of the ZSM-5 type catalytic component to poisoning from the usually expected synergistically destructive combination of sodium and vanadium on Y-type zeolites.

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"ZSM-5 in FCC, Potential Impact on Refinery Operation", F. G. Dwyer, F. Gorra, and J. Herbst, Mobil Res. & Dev. Corp, Paulsboro, NJ, 1986.
"Octane Enhancementin FCC Via ZSM-5", F. G. Dwyer, P. H. Schipper, F. Gorra, Mobil Res. & Dev. Corp., Paulsboro, NJ, 1987.

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