A TREATMENT SYSTEM OF LIQUEFIED GAS

摘要

The present invention relates to a liquefied gas treatment system, which includes: an evaporation gas compressor compressing an evaporation gas supplied from a liquefied gas storage tank; a first heat exchanger exchanging heat of the evaporation gas compressed by the evaporation gas compressor with an evaporation gas supplied from the liquefied gas storage tank; a pressure control part expanding or depressurizing the compressed evaporation gas first; a liquefying part expanding or depressurizing at least a part of the evaporation gas supplied from the pressure control part secondly; and a second heat exchanger which exchanges heat of the evaporation gas compressed by the evaporation gas compressor with the evaporation gas supplied from the pressure control part. The liquefied gas treatment system according to the present invention has the effect of improving operation efficiency of a reliquefaction system, since the heat exchangers re-liquefying the compressed evaporation gas are configured in parallel, and one heat exchanger re-liquefies the compressed evaporation gas using cold energy of the evaporation gas supplied from the liquefied gas storage tank and the other heat exchanger re-liquefies the evaporation gas using cold energy of the first-stage expanded or depressurized evaporation gas.