FIELD: gas industry.
SUBSTANCE: invention can be used in the liquefaction of gas flows, in particular gas flows containing hydrogen or helium. Refrigerant compositions include the first component, which is nitrogen, the second component selected from methane or argon, the third component selected from ethane or ethylene, and the fourth component selected from n-butane, isobutane, 1-butene, propane, propylene, n-pentane and isopentane. Refrigerant compositions may additionally include the fifth and sixth components selected from n-butane, isobutane, 1-butene, propane, propylene, n-pentane and isopentane. The fifth component is different from the specified fourth component, and the sixth component is different from the fifth component. The use of refrigerant compositions for pre-cooling during the liquefaction of gaseous substance and a method for liquefaction of supplied gas flow are also proposed.
EFFECT: invention makes it possible to increase the efficiency of refrigerant compositions.
12 cl, 3 dwg
