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

Start-up method for a hydrorefining process

Patent ·
OSTI ID:5906356
A hydrorefining process for heavy hydrocarbonaceous oils, such as gas oils, is initiated by contacting a sulfided hydrorefining catalyst, such as nickel-molybdenum on alumina, with a light hydrocarbonaceous oil boiling in the range of C/sub 5/ to 700/sup 0/ F., in the presence of hydrogen, at specified conditions and, thereafter, contacting the catalyst with the heavy hydrocarbonaceous oil to be hydrorefined.
Assignee:
Exxon Research an Engineering Co.
Patent Number(s):
US 4485006
OSTI ID:
5906356
Country of Publication:
United States
Language:
English