METHOD AND DEVICE FOR GAS COMPRESSION Russian patent published in 2015 - IPC B01D5/00 

FIELD: oil and gas industry.

SUBSTANCE: method including gas mixing with heated throttled circulating part of the compressed gas, the received mixture compression, compressed mixture cooling under dephlegmation conditions by the external cooling medium and throttled circulating part of the compressed gas with production of the compressed gas, that is divided to circulating and balance parts, and stable condensate production. For the method implementation the device is suggested, it contains a compressor connected with line of compressed mixture supply with fractional column, equipped with two heat-mass-exchange units cooled by the throttled circulating part of the compressed gas and by external cooling medium, at that top of the fractional column is equipped with compressed gas output line, and bottom - with condensate output line, and in line supplying the circulating part of the compressed gas connecting compressed gas output line and gas supply gas the throttling device is installed.

EFFECT: reduced temperature of compressed gas, reduced pressure of saturated condensate vapours, reduced losses of heavy components received from associated petroleum gas of the fuel gas with reduced water and hydrocarbons dew point.

5 cl, 1 dwg