FIELD: power industry.
SUBSTANCE: invention refers to natural gas flow liquefaction method, where natural gas flow (10) is obtained at pressure of 10-80 bar, supplied to gas/liquid separator (31) and subject to separation into steam flow (40) and liquid flow (30). Steam flow (40) is compressed to the pressure equal at least to 70, 84 bar; for it there performed is heat exchange at using steam flow (40), cooling at one and more stages of external cooling, which contain heat exchanger, and liquefaction till liquefied natural gas flow (100) is obtained. At that, pressure of raw material flow obtained at stage (a) is not increased till compression.
EFFECT: simplifying liquefaction process and reducing the power consumed for cooling.
11 cl, 2 dwg, 2 tbl
