Process for the treatment of halogenated organic feedstocks
AssigneeUop LLC
InventorsRobert S. Brasier, Robert B. James, Jr.
Life of this patent
Estimating the term…
Abstract
A process for the conversion of a halogenated organic feedstock to produce a stream of hydrocarbonaceous compounds having an exceedingly low concentration of halogenated organic compounds and an aqueous stream containing hydrogen halide.
Claims12
A process for treating a halogenated organic stream containing less than about 500 ppm by weight of water or water precursors to produce hydrocarbonaceous compounds having a reduced level of organic halogen and an aqueous liquid stream comprising hydrogen halide which process comprises the steps of:
- (a) contacting said halogenated organic stream containing less than about 500 ppm by weight of water or water precursors and a hydrogen-rich gaseous recycle stream containing less than about 500 ppm by weight of water or water precursors with a hydrogenation catalyst in a hydrogenation reaction zone at hydrogenation conditions to increase the hydrogen content of said halogenated organic stream containing less than about 500 ppm by weight of water or water precursors and to thereby produce hydrogen halide;
- (b) contacting the resulting effluent from said hydrogenation reaction zone with a sponge oil;
- (c) cooling the resulting admixture from step (b) to condense at least a portion of the effluent from said hydrogenation reaction zone to produce a hydrogen-rich gaseous stream containing less than about 500 ppm by weight of water or water precursors and a liquid stream comprising hydrogenated hydrocarbonaceous compounds, hydrogen halide, said sponge oil and less than about 500 ppm by weight of water or water precursor;
- (d) separating said liquid stream comprising hydrogenated hydrocarbonaceous compounds, hydrogen halide, said sponge oil and less than about 500 ppm by weight of water or water precursor in a separation zone to produce a stream containing hydrogenated hydrocarbonaceous compounds and hydrogen halide, and a stream comprising said sponge oil and trace quantities of halogenated organic compounds;
- and
- (e) contacting said stream containing hydrogenated hydrocarbonaceous compounds and hydrogen halide with a lean aqueous stream in an absorption zone to produce a stream comprising hydrocarbonaceous compounds and an aqueous stream comprising hydrogen halide.
A process for treating a halogenated organic stream containing less than about 500 ppm by weight of water or water precursors to produce hydrocarbonaceous compounds having a reduced level of organic halogen and an aqueous liquid stream comprising hydrogen halide which process comprises the steps of:
- (a) contacting said halogenated organic stream containing less than about 500 ppm by weight of water or water precursors, a hydrogen-rich gaseous recycle stream containing less than about 500 ppm by weight of water or water precursors and a sponge oil recycle stream containing halogenated organic compounds in a hydrogenation reaction zone at hydrogenation conditions to increase the hydrogen content of said halogenated organic stream containing less than about 500 ppm by weight of water or water precursors and to thereby produce hydrogen halide;
- (b) contacting the resulting effluent from said hydrogenation reaction zone with a sponge oil;
- (c) cooling the resulting admixture from step (b) to condense at least portion of the effluent from said hydrogenation reaction zone to produce a hydrogen-rich gaseous stream containing less than about 500 ppm by weight of water or water precursors and a liquid stream comprising hydrogenated hydrocarbonaceous compounds, hydrogen halide, said sponge oil and less than about 500 ppm by weight of water or water precursor;
- (d) separating said liquid stream comprising hydrogenated hydrocarbonaceous compounds, hydrogen halide, said sponge oil and less than about 500 ppm by weight of water or water precursor in a separation zone to produce a stream containing hydrogenated hydrocarbonaceous compounds and hydrogen halide, and a stream comprising said sponge oil and trace quantities of halogenated organic compounds;
- (e) recycling at least a portion of said stream comprising said sponge oil and trace quantities of halogenated organic compounds recovered in step (d) to step (a);
- and
- (f) contacting said stream containing hydrogenated hydrocarbonaceous compounds and hydrogen halide with a lean aqueous stream to produce a stream comprising hydrocarbonaceous compounds and an aqueous stream comprising hydrogen halide.
Dependencies are inferred from the claim text.