Gulf Research & Development Company

Chevron Research Company

Bruce R Mitchell

Roger F Vogel

Harold E Swift

Joel D McKinney

Raynor T Sebulsky

Hydrocarbons containing vanadium are converted to lower boiling fractions employing a zeolitic cracking catalyst containing a significant concentration of a calcium-containing additive as a vanadium passivating agent.

Vanadium passivation in a hydrocarbon catalytic cracking process

Hydrocarbons containing vanadium are converted to lower boiling fractions employing a zeolitic cracking catalyst containing a significant concentration of a calcium-containing additive e.g. calcium corbonate dolomite and amorphous as a vanadium passivating calcium silicate agent.

A method of negating the effects of metals poisoning on zeolite-containing cracking catalysts which comprises compositing tin with such catalysts.

Method of negating the effects of metals poisoning on zeolitic cracking

An improved catalytic cracking catalyst is obtained by a method which comprises incorporating into a crystalline aluminosilicate catalyst by ion exchange a substantial concentration of a metal selected from the group consisting of antimony, bismuth and manganese.

Method for preparing crystalline aluminosilicate cracking catalysts

An improved hydrocarbon catalytic cracking process which comprises introducing tin into the cracking zone so as to maintain a volume ratio of carbon dioxide to carbon monoxide in the gaseous effluent from the catalyst regeneration zone of at least 3.0.

Hydrocarbon catalytic cracking process

The cracking of high metals content feedstocks is achieved in the presence of a catalyst comprising from 1 to 40 weight percent of a zeolite having cracking activity dispersed in a large pored matrix.

Growing community of inventors

Lower Burrell, PA, United States of America

Bruce R Mitchell