Octane improvement cracking catalyst
AssigneeExxon Research & Engineering Co.
InventorsElroy M. Gladrow, William E. Winter, William L. Schuette
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Abstract
A cracking catalyst comprising discrete particles of ultra-stable Y-type zeolite and discrete particles of alumina, which particles are dispersed in a porous oxide matrix to produce a catalyst containing 5-40 wt. % ultra-stable Y-type zeolite, 5-40 wt. % alumina and 40-90 wt. % of porous oxide matrix. The cracking catalyst has unusually high activity and selectivity for the production of high octane gasoline fractions from higher boiling point feedstocks.
Claims11
A process for the catalytic cracking of a hydrocarbon feedstock which comprises contacting said feedstock under catalytic cracking conditions with a cracking catalyst composition comprising discrete particles of ultra-stable Y zeolite and discrete particles of alumina, which particles are dispersed in a porous oxide matrix to produce a catalyst containing 5-40 wt.% ultra-stable Y zeolite, 5-40 wt.% alumina and 40-90 wt.% of porous oxide matrix.
A process for the catalytic cracking of a hydrocarbon feedstock which comprises contacting said feedstock under catalytic cracking conditions with a cracking catalyst composition comprising discrete particles of ultra-stable Y zeolite containing less than 1 wt.% Na.sub.2 O and discrete particles of alumina, which particles are dispersed in silica-alumina gel to produce a catalyst containing 5-40 wt.% ultra-stable Y zeolite, 5-40 wt.% alumina and 40-90 wt.% silica-alumina gel.
Dependencies are inferred from the claim text.