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

Process for upgrading heavy hydrocarbonaceous oils

Patent ·
OSTI ID:5959015
An integrated upgrading process is disclosed which can be used to lower the specific gravity, viscosity and boiling range of heavy, viscous hydrocarbonaceous oil . The process consists of fractionally distilling the oil, treating its residuum with a hydrogen donor material under hydrocracking conditions, fractionally distilling the effluent from the hydrocracking zone and rehydrogenating that portion boiling from about 180/sup 0/ C to 350/sup 0/ C for recycling to the hydrocracking zone. The liquid portion of the oil not recycled can be recombined into a reconstituted crude suitable for transporting by normal crude pipelines.
Assignee:
Gulf Oil Canada Ltd (Canada)
Patent Number(s):
US 4294686
OSTI ID:
5959015
Country of Publication:
United States
Language:
English