Hydroconversion process employing catalyst with specified pore size distribution

A process for hydroconversion of a charge hydrocarbon feed of boiling point greater than 1000.degree. F. to form product having a boiling point less than 1000.degree. F. which comprises

• contacting said charge hydrocarbon feed with hydrogen at isothermal hydrotreating conditions in the presence of, as catalyst, a porous support bearing 3.0-3.5 w % of a Group VIII metal oxide, 14.5-16.5 w % of a Group VI-B metal oxide, and less than 0.2 w % of a phosphorus oxide, said catalyst having a Total Surface Area of 195-215 m.sup.2 /g, a Total Pore Volume of 0.73-0.8 cc/g, and a Pore Diameter Distribution whereby less than 3% of the Total Pore Volume is present as primary micropores of diameter .ltoreq.80 .ANG., and secondary micropores of diameters .+-.20 .ANG. of a pore mode of 100-135 .ANG. are present in amount of at least about 65% of the micropore volume having pores with diameter less than 250 .ANG., and 25-29% of the Total Pore Volume is present as macropores of diameter .gtoreq.250 .ANG., thereby forming hydrotreated product containing increased content of product having a boiling point less than 1000.degree. F.;
• and
• recovering said hydrotreated product containing increased content of product having a boiling point less than 1000.degree. F.