Cracking catalyst restoration with aluminum compounds
AssigneePhillips Petroleum Company
InventorsBrent J. Bertus, H. Wayne Mark, Dwight L. McKay
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Abstract
A composition comprising a cracking catalyst having had deposited thereon an aluminum containing treating agent.
Claims8
A composition comprising a zeolite modified hydrocarbon cracking catalyst having had deposited thereon a treating agent compound represented by the formula ##STR3## where R is a hydrocarbyl containing from 1 to about 20 carbon atoms and X is selected from the group consisting of oxygen and sulfur and at least one X is sulfur, in an amount of from about 200 to about 20,000 parts per million, as measured by the weight of aluminum in the treating agent to the total weight of the cracking catalyst composition.
A composition comprising a zeolite modified hydrocarbon cracking catalyst having had deposited thereon in excess of 3,000 ppm vandium equivalents of contaminants selected from the group consisting of nickel, vandium, and iron and from about 200 to about 20,000 parts per million as measured by weight of aluminum, of a treating agent composition represented by the formula ((RO).sub.2 PS.sub.2).sub.3 Al wherein R is hydrocarbyl having from 1 to about 20 carbon atoms.
Dependencies are inferred from the claim text.