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US 5,164,075 AGranted
High activity slurry catalyst
AssigneeChevron Research and Technology Company
InventorJaime Lopez
Life of this patent
Estimating the term…
Abstract
High activity slurry catalysts for hydroprocessing heavy hydrocarbon oils are produced from Group VIB metal compounds by sulfiding an aqueous mixture of the metal compound with from greater than about 8 to about 14 SCF of hydrogen sulfide per pound of Group VIB metal.
Claims9
A process for preparing a dispersed group VIB metal sulfide catalyst for hydrocarbon oil hydroprocessing comprises:
- (a) sulfiding an aqueous mixture of a Group VIB metal compound, with a gas containing hydrogen sulfide, to a dosage of about 8-14 SCF of hydrogen sulfide per pound of Group VIB metal, to form a slurry;
- (b) adding a Group VIII metal compound to said slurry;
- and
- (c) mixing said slurry and Group VIII metal compound with a feed oil and a hydrogen-containing gas at a temperature greater than about 750.degree. F.
1 more element
A process for hydroprocessing a heavy hydrocarbonaceous feedstock comprises contacting said feedstock with a catalyst prepared by the steps comprising:
- (a) sulfiding an aqueous mixture of a Group VIB metal compound, with a gas containing hydrogen sulfide, to a dosage of about 8-14 SCF of hydrogen sulfide per pound of Group VIB metal, to form a slurry;
- (b) adding a Group VIII metal compound to said slurry;
- and
- (c) mixing said slurry and Group VIII metal compound with a feed oil and a hydrogen-containing gas at a temperature greater than about 750.degree.0 F.
1 more element
Dependencies are inferred from the claim text.