Resid hydroprocessing catalyst
AssigneeUnion Oil Company of California
InventorsHoward D. Simpson, Marvin J. Schwedock, John W. Ward
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Abstract
A catalyst useful for hydroprocessing a hydrocarbon-containing oil contains at least one hydrogenation component on an amorphous, porous refractory oxide support containing between 2 and 8 weight percent of silica. The catalyst is prepared by impregnating support particles having a narrow pore size distribution and a median pore diameter greater than about 120 angstroms with a solution containing precursors of the hydrogenation components, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon hydroprocessing reactions, particularly simultaneous hydrogenative desulfurization, demetallization and denitrogenation of residuum-containing oils.
Claims20
A catalytic hydroprocess of a hydrocarbon-containing oil containing contaminant metals, nitrogen or sulfur, said hydroprocess comprising contacting a catalyst composition in a fixed bed in a reactor with said hydrocarbon-containing oil under hydroprocessing conditions so as to produce a product hydrocarbon-containing oil containing less contaminant metals, nitrogen or sulfur than said hydrocarbon-containing oil, said catalyst composition comprising at least one Group VIB hydrogenation metal component supported on an amorphous, porous refractory oxide containing alumina and silica, said catalyst composition containing between 1.8 and 7.8 weight percent of silica, calculated as SiO.sub.2, and said composition having a median pore diameter between 120 and 140 angstroms.
A catalytic hydroprocess of a hydrocarbon residuum-containing oil containing contaminant metals, nitrogen or sulfur, said hydroprocess comprising contacting a catalyst composition in a fixed bed in a reactor with said hydrocarbon-containing oil under hydroprocessing conditions so as to produce a product hydrocarbon-containing oil containing less nitrogen, sulfur or contaminant metals than contained in said hydrocarbon residuum-containing oil, said catalyst composition comprising at least one Group VI metal hydrogenation component supported on an amorphous, porous refractory oxide containing alumina and silica, said catalyst composition containing an overall silica contact between 1.8 and 7.8 weight percent of silica, calculated as SiO.sub.2, said composition having a median pore diameter in the range between 120 and 140 angstroms and at least 0.25 cc/gram of the total pore volume is in pores of diameter from about 20 angstroms above to about 20 angstroms below said median pore diameter.
A catalytic hydroprocess of a hydrocarbon-containing oil employing a catalyst comprising at least one molybdenum or tungsten component and at least one cobalt or nickel component on an amorphous, nonzeolitic support comprising gamma alumina and silica, in a fixed bed in a reactor said catalyst comprising between 1.8 and 7.8 weight percent of silica, calculated as SiO.sub.2, and having at least 45 percent of the total pore volume in pores of diameter within 20 angstroms above or below a median pore diameter in the range between 120 and 140 angstroms.
Dependencies are inferred from the claim text.