초록 ▼

A two-stage hydrotreating process comprises the steps of (1) contacting a liquid hydrocarbon-containing feed stream, which contains nickel, vanadium and Ramsbottom carbon residue, with hydrogen and a solid inorganic refractory material (preferably alumina) for at least partial removal of Ni and V, a

A two-stage hydrotreating process comprises the steps of (1) contacting a liquid hydrocarbon-containing feed stream, which contains nickel, vanadium and Ramsbottom carbon residue, with hydrogen and a solid inorganic refractory material (preferably alumina) for at least partial removal of Ni and V, and then (2) hydrovisbreaking the intermediate product stream from step (1). Preferably, step (2) is carried out in the presence of at least one decomposable compound of a metal, preferably a molybdenum dithiophosphate.

대표청구항 ▼

A hydrotreating process comprising the steps of: (1) contacting (a) a substantially liquid hydrocarbon-containing feed stream, which also contains at least about 3 ppmw nickel, at least about 5 ppmw vanadium and at least about 0.5 weight-% Ramsbottom carbon residue, simultaneously with (b) a free hy

A hydrotreating process comprising the steps of: (1) contacting (a) a substantially liquid hydrocarbon-containing feed stream, which also contains at least about 3 ppmw nickel, at least about 5 ppmw vanadium and at least about 0.5 weight-% Ramsbottom carbon residue, simultaneously with (b) a free hydrogen containing gas and (c) a fixed bed containing a solid, substantially unpromoted inorganic refractory material selected from the group consisting of alumina, silica, magnesia, metal silicates, metal aluminates, aluminosilicates, aluminum phosphate and mixtures thereof, under such contacting conditions as to produce an intermediate liquid product stream having a lower content of nickel and vanadium than said hydrocarbon-containing feed stream; and (2) heating at least a portion of said intermediate liquid product stream in the presence of a free hydrogen containing gas under hydrovisbreaking conditions as to obtain a liquid product containing less Ramsbottom carbon residue and less hydrocarbon material boiling in excess of about 1000°F. at 1 atm than said intermediate liquid product stream obtained in step (1).