Combination coking and hydroconversion process
First Claim
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1. An integrated coking and hydroconversion process which comprises the steps of:
- (a) treating a carbonaceous feed having a Conradson carbon content of at least 5 weight percent in a coking zone at coking conditions, including a pressure ranging from zero to about 100 psig, to produce coke and a vapor phase product, including hydrocarbons boiling above 1050°
F.;
(b) separating a heavy bottoms fraction having a Conradson carbon content of at least about 5 weight percent, including said hydrocarbons boiling above 1050°
F. from said vapor phase product;
(c) adding a hydroconversion catalyst precursor to at least a portion of said heavy bottoms fraction to form a mixture, said catalyst precursor being added to said bottoms portion as a catalyst precursor in a virgin petroleum residuum, and(d) subjecting at least a portion of said mixture of step (c) to hydroconversion conditions, in the presence of hydrogen, in a slurry hydroconversion zone to produce a hydroconverted oil.
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Abstract
A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal, and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process in which a catalyst precursor is added to the feed of the hydroconversion zone as a catalyst precursor concentrate prepared from a virgin hydrocarbonaceous oil and a thermally decomposable or oil dispersible metal compound.
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Citations
11 Claims
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1. An integrated coking and hydroconversion process which comprises the steps of:
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(a) treating a carbonaceous feed having a Conradson carbon content of at least 5 weight percent in a coking zone at coking conditions, including a pressure ranging from zero to about 100 psig, to produce coke and a vapor phase product, including hydrocarbons boiling above 1050°
F.;(b) separating a heavy bottoms fraction having a Conradson carbon content of at least about 5 weight percent, including said hydrocarbons boiling above 1050°
F. from said vapor phase product;(c) adding a hydroconversion catalyst precursor to at least a portion of said heavy bottoms fraction to form a mixture, said catalyst precursor being added to said bottoms portion as a catalyst precursor in a virgin petroleum residuum, and (d) subjecting at least a portion of said mixture of step (c) to hydroconversion conditions, in the presence of hydrogen, in a slurry hydroconversion zone to produce a hydroconverted oil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification