Chevron Research Company

Gulf Research & Development Company

Chevron Research & Technology Company

James V Kennedy

Lawrence W Jossens

Mario L Occelli

Stacey Ian Zones

Dennis L Holtermann

Donald S Santilli

Andrew Rainis

John A Paraskos

Charles F Guthrie

A process is disclosed for passivating the reactivity of contaminant metals, such as nickel and vanadium, which have been deposited on a catalytic cracking catalyst, by adding to the cracking catalyst a mixture of a calcium-containing material and a magnesium-containing material in a separate reactor in the presence of steam. The preferred calcium-containing material is dolomite and the preferred magnesium-containing material is sepiolite. It is also preferred to include antimony and/or bismuth compounds in the additive mixture.

Process for the demetallization of FCC catalyst

A crystalline zeolite SSZ-33 is prepared using a quaternary ion as a template wherein said zeolite is used in hydrocarbon conversion processes.

Use of zeolite SSZ-33 in hydrocarbon conversion processes

A composition useful for processing hydrocarbonaceous feedstocks is disclosed comprising a mixture of a calcium/magnesium-containing material and a magnesium-containing material. The preferred calcium/magnesium-containing material is dolomite and the preferred magnesium-containing material is sepiolite.

Hydrocarbon processing composition

A catalytic cracking process is disclosed employing a dual component cracking catalyst system comprising zeolite as a first component and a mixture of a calcium/magnesium-containing material and a magnesium-containing material as a second component. The preferred calcium/magnesium-containing material is dolomite and the preferred magnesium-containing material is sepiolite.

Catalytic cracking process with vanadium passivation and improved

A dual component cracking catalyst system is disclosed comprising zeolite as a first component and a mixture of a calcium/magnesium-containing material and a magnesium-containing material as a second component. The preferred calcium/magnesium-containing material is dolomite and the preferred magnesium-containing material is sepiolite.

Dual component cracking catalyst with vanadium passivation and improved

A process for cracking high metals content feedstocks which comprises contacting said feedstocks under catalytic cracking conditions with a novel catalytic cracking composition comprising a solid cracking catalyst and a magnesium oxide diluent.

Process for cracking high metals content feedstocks

A process for cracking high metals content feedstocks which comprises contacting said feedstocks under catalytic cracking conditions with a novel catalytic cracking composition comprising a solid cracking catalyst and an alumina diluent.

A novel catalytic cracking composition comprising a solid cracking catalyst and a diluent containing a selected magnesium compound or a selected magnesium compound in combination with one or more heat-stable metal compounds.

Modified cracking catalyst composition

A process for cracking high metals content feedstocks which comprises contacting said charge stock under catalytic cracking conditions with a novel catalytic cracking composition comprising a solid cracking catalyst and a diluent containing a selected magnesium compound or a selected magnesium compound in combination with one or more heat-stable metal compounds.

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Greenbrae, CA, United States of America

James V Kennedy