FIELD: oil and gas industry.
SUBSTANCE: method comprises supplying initial gas under pressure of 0.002-0.24 MPa (0.02-2.4 kg/cm2), separating the initial gas into gas and liquid phases downstream of each cooling stage, discharging liquid phase produced, and supplying the residual gas to the subsequent cooling, condensing, and separating. The device is modular and comprises heat exchanger-condenser, separator, and collector of the liquid fraction extracted. The device has at least two modules connected in series. The heat exchanger-condenser may be made of Peltier elements.
EFFECT: reduced cost.
3 cl, 1 dwg
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