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

Process for hydrotreating hydrocarbon feeds

Patent ·
OSTI ID:5451252
A process for hydrotreating hydrocarbon feeds by contacting the feeds with hydrotreating catalyst which has a surface area above about 300 m/sup 2//g and at least about 80% of the pore diameters less than about 70 A. The catalyst is prepared by a process which comprises: precipitating an aqueous solution of one or more aluminum salt(s) by adjusting the pH of the solution to a range between about 5.5 and about 10.0 at a temperature in the range between about 20{sup 0}C and about 90C{sup 0}; aging the precipitate at a temperature ranging form about 20{sup 0}C to about 90{sup 0}C for at least about 15 minutes at a pH ranging from about 8.0 to about 12.0; washing the precipitate; mixing the precipitate with dry, water-soluble salts of nickel and a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof, and a phosphorus-containing compound in an amount of from about 0.2 to about 1.5 moles of phosphorus per mole of heavy metal, at a pH in the range between about 4.0 and about 8.0 and a temperature in the range between about 25{sup 0}C and about 100{sup 0}C to yield a final catalyst having from about 1% w to about 5% w nickel and from about 8% w to about 32% w heavy metal; extruding the product; and drying and calcining the product of step at a temperature ranging from about 300{sup 0}C to about 900{sup 0}C.
Assignee:
Shell Oil Co., Houston, TX
Patent Number(s):
US 4853108
Application Number:
PPN: US 7122864A
OSTI ID:
5451252
Country of Publication:
United States
Language:
English