Hydroprocessing hydrocarbon oils
This patent describes a catalytic hydroprocess of a hydrocarbon oil containing nitrogen or sulfur. It comprises: contacting a catalytic composition with the hydrocarbon oil under hydroprocessing conditions so as to produce a product hydrocarbon oil containing less nitrogen or sulfur than the hydrocarbon oil, the catalytic composition prepared by the method comprising the steps of impregnating porous refractory support particles with an aqueous impregnating solution comprising one or more Group VIB metal components, one or more phosphorus components and citric acid, the citric acid in a mole ratio to the Group VIB metal components calculated as the Group VIB metal trioxide of less than 1 to 1. The solution has a pH less than 1.0 and calcining the impregnated support particles to produce a catalytic composition containing a Group VIB metal component and a phosphorous component on the porous refractory oxide support.
- Assignee:
- Union Oil Co. of California, Los Angles, CA (USA)
- Patent Number(s):
- US 4940533; A
- Application Number:
- PPN: US s 7-414929
- OSTI ID:
- 6556828
- Country of Publication:
- United States
- Language:
- English
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