FIELD: separation.
SUBSTANCE: invention relates to the gas processing industry. To decarbonize the hydrocarbon gas by solvent washing, the gas is brought into contact with the absorption solution to produce CO2-depleted gas, and an absorbent solution filled with CO2. Adsorption solution is heated and throttled to separate the gaseous fraction and produce a solution depleted in hydrocarbons. Absorption solution depleted of the hydrocarbon compounds is subjected to thermal regeneration to separate the gaseous effluent stream enriched in CO2, and obtaining a regenerated absorption solution.
EFFECT: simplified technology and increased efficiency of natural gas purification, reduced consumption of flue gas.
19 cl, 2 dwg, 7 tbl, 3 ex
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