METHOD FOR PROCESSING GAS-CONDENSATE HYDROCARBON MIXTURE Russian patent published in 2006 - IPC B01D53/00 B01D19/00 F25J3/00 

FIELD: technology for processing gas-condensate hydrocarbon mixture.

SUBSTANCE: method includes three separation stages with feeding of methanol at second stage and absorption with production of hydrocarbon gas, prepared for following transportation to consumer. Mixture of liquid substances from first and second separation stages is fed into first separator, where hydrocarbon gas is isolated from it, which is then fed into absorber. Remaining mixture of liquid substances is divided on water-methanol solution, which is fed to regeneration, and liquid mixture, which is cooled down in first heat exchanger-cooler and mixed with liquid substance after third stage of separation. A portion of received liquid mixture is fed onto second separator, while remaining portion is fed as hydrocarbon absorbent into absorber. Liquid mixture from absorber is divided in second separator in water-methanol solution, which is dispatched for regeneration, and hydrocarbon phase, containing 1-2 percents of mass of emulsion of water-methanol solution, which is fed into electro-dehydrator. In electro-dehydrator by means of heating up hydrocarbon phase to temperature not less than 3°C-7°C and affecting it with alternating electric field, water-methanol solution is isolated, which is dispatched for regeneration or recirculation to second stage of separation, and hydrocarbon phase, which through second heat exchanger-cooler is dispatched to consumer.

EFFECT: decreased losses of methanol, increased quality of condensate dispensed to consumer.

1 ex, 2 tbl, 1 dwg