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

Hydrocracking process

Patent ·
OSTI ID:6609162

A method is disclosed for hydrocracking a hydrocarbon feedstock having a propensity to form polynuclear aromatic compounds without excessively fouling the processing unit. The hydrocracking method includes contacting the hydrocarbon feedstock with a crystalline zeolite hydrocracking catalyst, contacting at least a portion of the resulting unconverted hydrocarbon oil containing polynuclear aromatic compounds with an adsorbent which selectively retains polynuclear aromatic compounds and recycling unconverted hydrocarbon oil having a reduced concentration of polynuclear aromatic compounds to the hydrocracking zone.

Assignee:
UOP Inc., Des Plaines (South Africa)
Patent Number(s):
US 4447315
OSTI ID:
6609162
Country of Publication:
United States
Language:
English