FIELD: gas industry.
SUBSTANCE: invention relates to cryogenic equipment and can be used for production of liquefied natural gas at gas distribution stations. Plant for production of liquefied natural gas includes a preliminary heat exchanger, a line of high pressure gas with a drying unit, which is divided into a production gas line and a process gas line, which is equipped with a preliminary heat exchanger and an expander, and is connected to a return gas line, forming a low pressure gas line. Production flow line is equipped with compressor connected with expander, cleaning unit, main heat exchanger, reducing device and separator with lines of return gas and compressed production gas drain. On the production gas line downstream the compressor there are heat exchangers "compressed production gas/return gas" and "compressed production gas/gas of low pressure", after which there is a cleaning unit and a heat exchanger "compressed production gas/reduced process gas". Return gas line after the heat exchanger "compressed production gas/return gas" is connected to the line of the reduced process gas, as well as with cleaning and drying units, which are connected by regeneration gases supply lines with the line of reduced process gas after the preliminary heat exchanger.
EFFECT: technical result is increase of liquefied natural gas output.
1 cl, 1 dwg
