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U.S. Department of Energy
Office of Scientific and Technical Information

Promotion of cracking catalyst octane yield performance

Patent ·
OSTI ID:6357269
A process for increasing gasoline octane number and/or total gasoline yield in catalytic cracking units by the addition of a very small amount of finely divided shape selective additive promoter, which additive promoter is not intimately combined with a substantial amount of another solid prior to contact with the cracking catalyst. The additive promoter is a zeolite characterized by a silica to alumina mole ratio greater than about 500 and a constraint index within the approximate range of 1 to 12.
Assignee:
Mobil Oil Corp.
Patent Number(s):
US 4521298
OSTI ID:
6357269
Country of Publication:
United States
Language:
English