Cracking catalyst improvement with gallium compounds
AssigneePhillips Petroleum Company
InventorsJohn S. Roberts, Dwight L. McKay, Brent J. Bertus
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Abstract
Gallium compounds are usefully employed to modify hydrocarbon cracking catalysts.
Claims9
A composition comprising a zeolite modified hydrocarbon cracking catalyst containing from about 60 to about 99 percent by weight of amorphous silica alumina matrix and from about 1 to about 40 percent by weight of crystalline zeolitic material dispersed within the matrix and having deposited thereon a treating agent selected from the group consisting of gallium and a compound of gallium in an amount sufficient enough to impart to the composition a concentration of gallium of about 0.001 to about 1 percent by weight.
Dependencies are inferred from the claim text.