FIELD: processing petroleum gases by low-temperature condensation; oil and gas processing industry.
SUBSTANCE: proposed method includes compression of initial gas followed by de-ethanization. Gas and condensate obtained after separation are mixed and gas-and-liquid flow is cooled and is delivered for low-temperature separation; then, part of this low-temperature condensate is throttled and cold thus obtained is used for cooling the compressed gas-and-liquid flow which is fed for separation of condensate, after which gas separated from condensate is mixed with initial gas and condensate is directed for de-ethanization. Second part of low-temperature condensate is fed for de-ethanization after use of its cold for cooling and condensing the de-ethanization gases.
EFFECT: possibility of extraction of target components; utilization of heavy petroleum gases; reduced capital outlays.
4 cl, 1 dwg
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