FIELD: chemistry.
SUBSTANCE: method for making natural gas products involves cooling of compressed feed natural gas containing helium in amount less than 0.5% vol. and methane thus producing the first liquefied fluid containing helium and methane of, at least, a part of natural gas; decompression of, at least, a part of the first fluid thus producing the first low-pressure fluid and separating the first vapour containing helium and methane and the first liquid containing methane in molar ratio of the first vapour to the first liquid 0.0001 to 0.04 from the first low-pressure fluid; disposal of, at least, a part of wet helium from a part of the first vapour; decompression of, at least, a part of the first liquid thus producing low-pressure fluid and separation of the specified environment thus producing vapour containing methane, and liquid containing methane; reaction of, at least, a part of methane from vapour containing methane thus making, at least, a part of synthetic gas; and disposal of, at least, a part of product of liquefied natural gas from, at least, a part of liquid containing methane. Besides, there is disclosed device for natural gas products.
EFFECT: lower specific power inputs in liquefied natural gas production.
19 cl, 6 dwg, 2 tbl, 1 ex
