FIELD: process for liquefying methane-enriched flow of compressed gas. SUBSTANCE: gas flow is liquefied in heat exchanger cooled by means of refrigeration machine with multicomponent cooling agent operating in closed cycle for production of methane-enriched liquid product having temperature higher than -112 C and pressure sufficient to provide temperature of liquid product equal to boiling start point or lower than it. Then liquefied gaseous product is placed in reservoir for storing it at temperature higher than -112 C. EFFECT: enhanced efficiency of gas liquefying. 21 cl, 1 note, 7 tbl, 10 dwg
