FIELD: power engineering.
SUBSTANCE: method for treatment of a flow of hydrocarbons, such as natural gas, which includes at least the following stages: supply of a feed stream (10) of hydrocarbons, sending the feed stream (10) via the first separator (12) to produce the first gaseous flow (20) and the first liquid flow (30), sending the first gaseous flow (20) from the stage (b) via a high-pressure separator (14) to produce the second gaseous flow (40) and the second flow (80) of liquid, maintenance of pressure of the first gaseous flow (20) between the stages (b) and (c) within the range of ±1 MPa, sending the first flow (30) of liquid from the stage (b) via a rectifier (16) to produce the third gaseous flow (60) and a stabilised condensate (70), supply of the second flow (80) of liquid from the stage (c) into the rectifier (16), liquefaction of the second gaseous flow (40) in the system (26) of liquefaction with production of the liquefied hydrocarbon flow (50) and supply of the liquid recirculation flow (90) from the system (26) of liquefaction back into the high pressure separator (14).
EFFECT: using the invention will make it possible to increase efficiency of natural gas separation, to reduce capital costs, to improve quality of compressed gas.
10 cl, 1 dwg, 3 tbl
