Catalyst compositions
AssigneeW. R. Grace & Co.
InventorJohn A. Rudesill
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Abstract
Catalytic compositions comprising up to about 50 weight percent ZSM-5 zeolite dispersed in an attrition resistant, porous inorganic oxide matrix selected from silica-alumina cogels, silica, alumina and silica alumina sol bound clay. The compositions are combined with zeolitic containing catalytic cracking catalysts and used to convert residual and/or gas oil hydrocarbon feedstocks into lower molecular weight products that include high octane gasoline fractions.
Claims6
A catalytic cracking composition which comprises a separate particulate octane-enhancing additive component comprising ZSM-5 dispersed in an inorganic oxide matrix, and a particulate Y zeolite containing catalytic cracking catalyst component, comprising 15 to 60 percent by weight ultrastable y zeolite dispersed in an inorganic oxide matrix.
Dependencies are inferred from the claim text.