FIELD: oil, gas and coke-chemical industries.
SUBSTANCE: gas liquefaction system (100) includes gas multi-stage compressor (2) with liquid piston, expansion device (3) for supply of compressed gas into it, intended for production and liquefied gas, and throttled gas from compressed gas, and return channel (97) connected to displace throttling gas from gas outlet opening (33) of gas expansion device (3) to point (10) of channels connection, located between gas inlet (1) and compressor. Compressor can be installed on board of vehicle for liquefied gas for recycling of evaporated gas.
EFFECT: technical result consists in simplification of capacity control and improvement of system reliability.
15 cl, 3 dwg
