PROCESS FOR PRODUCING DISTILLATE FUELS AND ANODE GRADE COKE FROM VACUUM RESID
First Claim
1. A process for upgrading residuum hydrocarbon feedstocks, comprising:
- contacting a residuum hydrocarbon and hydrogen with a hydroconversion catalyst in an residuum hydroconversion reactor system;
recovering an effluent from the residuum hydroconversion reactor system;
separating the effluent from the residuum hydroconversion reactor system to recover two or more hydrocarbon fractions including at least a vacuum residuum fraction and a heavy vacuum gas oil fraction;
combining at least a portion of the heavy vacuum gas oil fraction and at least a portion of the vacuum residuum fraction to form a mixed heavy hydrocarbon fraction;
feeding at least a portion of the mixed heavy hydrocarbon fraction to a coker;
operating the coker at conditions to produce anode grade green coke and distillate hydrocarbons;
recovering the distillate hydrocarbons from the coker;
fractionating the distillate hydrocarbons recovered from the coker to recover three or more hydrocarbon fractions including a light distillates fraction, a heavy coker gas oil fraction, and a coker recycle fraction.
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Accused Products
Abstract
A process for upgrading residuum hydrocarbon feedstocks that may include: contacting a residuum hydrocarbon and hydrogen with a hydroconversion catalyst in a residuum hydroconversion reactor system; recovering an effluent from the residuum hydroconversion reactor system; separating the effluent to recover two or more hydrocarbon fractions including at least a vacuum residuum fraction and a heavy vacuum gas oil fraction; combining at least a portion of the heavy vacuum gas oil fraction and at least a portion of the vacuum residuum fraction to form a mixed heavy hydrocarbon fraction; feeding at least a portion of the mixed heavy hydrocarbon fraction to a coker; operating the coker at conditions to produce anode grade green coke and distillate hydrocarbons; recovering the distillate hydrocarbons from the coker; fractionating the distillate hydrocarbons to recover hydrocarbon fractions including a light distillates fraction, a heavy coker gas oil fraction, and a coker recycle fraction.
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Citations
30 Claims
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1. A process for upgrading residuum hydrocarbon feedstocks, comprising:
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contacting a residuum hydrocarbon and hydrogen with a hydroconversion catalyst in an residuum hydroconversion reactor system; recovering an effluent from the residuum hydroconversion reactor system; separating the effluent from the residuum hydroconversion reactor system to recover two or more hydrocarbon fractions including at least a vacuum residuum fraction and a heavy vacuum gas oil fraction; combining at least a portion of the heavy vacuum gas oil fraction and at least a portion of the vacuum residuum fraction to form a mixed heavy hydrocarbon fraction; feeding at least a portion of the mixed heavy hydrocarbon fraction to a coker; operating the coker at conditions to produce anode grade green coke and distillate hydrocarbons; recovering the distillate hydrocarbons from the coker; fractionating the distillate hydrocarbons recovered from the coker to recover three or more hydrocarbon fractions including a light distillates fraction, a heavy coker gas oil fraction, and a coker recycle fraction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for upgrading residuum hydrocarbon feedstocks, comprising:
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a residuum hydroconversion reactor system for contacting a residuum hydrocarbon and hydrogen with a hydroconversion catalyst; a fractionation system for separating an effluent recovered from the residuum hydroconversion reactor system into two or more hydrocarbon fractions including at least a vacuum residuum fraction and a heavy vacuum gas oil fraction; a mixing device for combining at least a portion of the heavy vacuum gas oil fraction and at least a portion of the vacuum residuum fraction to form a mixed heavy hydrocarbon fraction; a coker for converting the mixed heavy hydrocarbon fraction to produce anode grade green coke and distillate hydrocarbons; a fractionation system for fractionating the distillate hydrocarbons recovered from the coker into three or more hydrocarbon fractions including a light distillates fraction, a heavy coker gas oil fraction, and a coker recycle fraction. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification