Hydroprocessing of heavy hydrocarbonaceous oils

A process for hydroprocessing a heavy hydrocarbonaceous oil feed to convert at least a portion of feed components boiling above 350.degree. C. to components boiling below 350.degree. C. comprising:

• (a) contacting said oil with added hydrogen in a first reaction zone under hydroprocessing conditions, including a hydrogen partial pressure of above 35 atmospheres in the presence of (1) added dispersed hydrogenation catalyst suspended in said oil and containing at least one catalytic hydrogenation component selected from transition metal elements or compounds thereof, and (2) added porous contact particles substantially free of added catalytic transition elements or components thereof, to produce a first effluent having a normally liquid portion;
• and
• (b) contacting at least a portion of the normally liquid portion of said first effluent in a second reaction zone with hydrogen under hydrogenation conditions in the presence of a bed of particulate hydrogenation catalyst, to produce a second effluent.

A process for hydroprocessing a heavy hydrocarbonaceous oil feed to convert at least a portion of feed components boiling above 350.degree. C. to components boiling below 350.degree. C. comprising contacting said oil with hydrogen in a reaction zone under hydroprocessing conditions including a temperature in the range of 400.degree.-480.degree. C., a pressure in the range of 40 to 680 atmospheres, a residence time of 0.1 to 3 hours, and a hydrogen gas rate of 355 to 3550 liters per liter of feed, in the presence of (1) dispersed hydrogenation catalyst added as an oil/aqueous emulsion of an aqueous ammonium molybdate solution and (2) added porous contact particles substantially free of added catalytic transition elements or compounds thereof, comprising material selected from the group of spent FCC catalyst fines, alumina, and naturally occurring clays, to produce a liquid effluent having a normally liquid portion.

A process for hydroprocessing a heavy hydrocarbonaceous oil feed to convert at least a portion of feed components boiling above 350.degree. C. to components boiling below 350.degree. C. comprising contacting said oil with hydrogen in a reaction zone under hydroprocessing conditions including hydrogenated partial pressure above 35 atmospheres, a temperature in the range of 400.degree.-480.degree. C., a pressure in the range of 40 to 680 atmospheres, a residence time of 0.1 to 3 hours, and a hydrogen gas rate of 355 to 3550 liters per liter of feed, in the presence of (1) a dispersed hydrogenation catalyst added as an oil/aqueous emulsion of an aqueous ammonium molybdate solution and (2) added porous contact particles substantially free of added catalytic transition elements or compounds thereof, comprising material selected from the group of spent FCC catalyst fines, alumina, and naturally occurring clays, to produce a liquid effluent having a normally liquid portion, and contacting at least a portion of said normally liquid portion with hydrogen in a second reaction zone under hydroprocessing conditions in the presence of a bed of particulate hydrogenation catalyst to produce a second effluent.