Process for cracking hydrocarbon oils

Details Process for cracking hydrocarbon oils Process for cracking hydrocarbon oils

2004-09-27

2008-10-14

Griffin, Walter D. (Department: 1797)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S106000, C208S120010, C208S120050, C208S120100, C208S120150, C208S120200, C208S120250, C208S120350, C208S121000

Reexamination Certificate

active

07435332

ABSTRACT:
This invention relates to a process for cracking hydrocarbon oils. The process comprises contacting a hydrocarbon oil with a catalyst that has been contacted with an atmosphere containing a reducing gas, separating cracked products and the catalyst, and regenerating the catalyst. The catalyst is a cracking catalyst containing a metal component, or a catalyst mixture of a cracking catalyst containing a metal component and a cracking catalyst free of metal component. The catalyst is contacted with the atmosphere containing a reducing gas at a temperature of 100 to 900° C. for at least 1 second, and the amount of the atmosphere containing a reducing gas is not less than 0.03 cubic meters of reducing gas per ton of the cracking catalyst containing a metal component per minute, at a pressure of 0.1-0.5 MPa in the reduction reactor. The process has enhanced capability for desulfurizing and cracking heavy oils.

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