FIELD: gas industry.
SUBSTANCE: invention relates to equipment for field preparation of natural gas and can be used in the gas industry. The invention relates to a complex gas treatment plant with increased extraction of gas condensate, including a cooling unit and a separator located on the raw natural gas line connected to the demethanizer by a separation gas supply line with a reducing device, while the bottom of the demethanizer is connected by a demethanized condensate supply line to a fractionation unit equipped with hydrocarbon fraction output lines and equipped with a heater, and the top of the demethanizer is connected by a prepared natural gas line to a cooling unit. As a separator, there is an input separator connected to the fractionation unit by a separation residue supply line, the first and second recuperative heat exchangers are installed as a cooling unit, and an expander is installed as a reducing device. The separation gas supply line after the inlet separator is divided into three lines, the first line is equipped with a demethanizer bottom heater and after the first recuperative heat exchanger, connected to the second line on which the first recuperative heat exchanger is located, and the third line as a process gas line is equipped with a third and second recuperative heat exchangers, a booster compressor or pump connected to the expander, as well as a third recuperative heat exchanger. The fractionation unit is connected by a methane-containing gas supply line to the prepared natural gas line before or after the first recuperative heat exchanger, and is also connected to the prepared natural gas line by input/output lines of at least part of the latter as a refrigerant.
EFFECT: increased output of gas condensate.
1 cl, 1 dwg, 1 ex
