초록 ▼

Hydroprocessing of hydrocarbon oils is carried out utilizing a catalyst containing nickel and tungsten active metal components on a porous support material and having a narrow pore size distribution, with essentially all pores being of diameter greater than about 100 angstroms, with less than about

Hydroprocessing of hydrocarbon oils is carried out utilizing a catalyst containing nickel and tungsten active metal components on a porous support material and having a narrow pore size distribution, with essentially all pores being of diameter greater than about 100 angstroms, with less than about 10 percent of the total pore volume being in pores of diameter greater than 300 angstroms, and with at least about 60 percent of the total pore volume being in pores of diameter from about 180 to about 240 angstroms. The catalyst is useful for promoting the conversion of asphaltenes contained in hydrocarbon oils, especially in the second reaction zone of a multiple-stage hydrodesulfurization process wherein demetallization catalysts are employed in upstream reaction zones.

대표청구항 ▼

A catalytic process wherein a hydrocarbon oil containing asphaltenes and less than 50 ppmw of contaminant metals is contacted under conditions of elevated temperature and pressure with a catalyst comprising nickel and tungsten active metal components on a porous support material comprising gamma alu

A catalytic process wherein a hydrocarbon oil containing asphaltenes and less than 50 ppmw of contaminant metals is contacted under conditions of elevated temperature and pressure with a catalyst comprising nickel and tungsten active metal components on a porous support material comprising gamma alumina, said catalyst having at least about 60 percent of the total pore volume distributed in pores of diameter from about 180 to about 240 angstroms, with essentially all pores being of diameter greater than about 100 angstroms, and with less than about 10 percent of the total pore volume being in pores of diameter greater than 300 angstroms, said catalyst having a surface area greater than about 100 m2/gram, and wherein the effluent hydrocarbon oil contains less asphaltenes than said hydrocarbon oil.