FIELD: oil and gas industry.
SUBSTANCE: invention relates to methods of modernization of installations of low-temperature separation of natural gas and can be used in gas industry. A method of modernization of the low-temperature gas separation installation is proposed, which consists in the installation on gas supply line of the inlet separation into the reduction unit of the dephlegmator, the upper and lower parts of which are connected to the low-temperature separation gas supply line, and exhaust line of phlegm is connected to the input separation condensate supply line. Door valve are arranged between connection points. In addition, a part of heat exchanger of the recovery unit cold is connected to the supply line of the reduced mixture of condensates into the unit, the degassing of the condensate after the reducing device and is placed in between the points of connection door valve.
EFFECT: invention makes it possible to increase the degree of extraction of heavy hydrocarbons, improve the quality of gas preparation while reducing the inlet pressure.
1 cl, 1 dwg
