NOVEL HYDROCONVERSION PROCESS EMPLOYING CATALYST WITH SPECIFIED PORE SIZE DISTRIBUTION

摘要

Heavy hydrocarbons are hydrotreated to increase content of components boiling below 1000.degree.F by contact with Group VIII non-noble metal oxide and Group VI-B metal oxide on alumina having a Total Surface Area of 150-240 m2/g, a Total Pore Volume, (TPV) of 0.7-0.98, and a Pore Diameter Distribution whereby .ltoreq. 20 0 of the TPV is present as primary micropores of diameter .ltoreq. 100.ANG., at least about 34% of TPV is present as secondary micropores of diameter of about 100.ANG.-200.ANG., and about 26%-46% of the TPV is present as mesopores of diameter .gtoreq. 200.ANG..