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 first phase separator separating the evaporation gas supplied from the pressure control part into a liquid and a gas; a liquefaction part expanding or depressurizing at least a part of the evaporation gas supplied from the first phase separator secondly; and a second phase separator separating the evaporation gas passing through the liquefaction part into a liquid and a gas. The gas separated in the second phase separator joins the evaporation gas supplied from the liquefied gas storage tank. The liquefied gas treatment system according to the present invention has the effect of maximizing reliquefaction efficiency and reducing total energy consumption required for reliquefaction, by joining a flash gas generated after first expansion and depressurizing or second expansion and depressurizing to a front end of an evaporation gas-evaporation gas heat exchanger.