FIELD: gas industry.
SUBSTANCE: present invention relates to method and device for natural gas liquefaction. In version of the present invention natural gas liquefaction method includes: cooling a part of the feed stream of natural gas with formation of cooled natural gas feed stream; combination of cooled compressed natural gas feed stream flow irrigation with formation of a combined flow of natural gas; separation of combined natural gas flow at the first flow of light fractions and the first flow of heavy fractions; expansion of the first flow of light fractions to form an extended first flow of light fractions; and compression of irrigation flow into a compressed stream of irrigation.
EFFECT: invention is aimed at removal of heavy fractions and reduced power consumption.
4 cl, 1 dwg
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