METHOD OF SEPARATION OF GAS HYDROCARBON MIXTURE Russian patent published in 1995 - IPC

FIELD: refining of oil and natural gases. SUBSTANCE: source gas mixture is compressed in compressor 1 and supplied for separation to first-stage diaphragm separator 2. The obtained penetrate is fed to the low-temperature condensation unit, or, if the penetrate pressure is below the low-temperature condensation unit pressure, penetrate is compressed in compressor 4 and fed to the low-pressure condensation unit, and apenetrate is fed to the using equipment, or at an increase of the amount of the source gas mixture it is fed to the second stage of diaphragm separator 3. The obtained apenetrate is supplied to the using equipment, and penetrate is mixed up with dry gas flowing through lines 23,22 and 27 and directed to the using equipment in the form of transportable gas. EFFECT: reduced capital investments and enhanced effectiveness of separation due to the increase of the coefficient of extraction of wide fraction and expanded range of source mixture capacity. 1 dwg