LIQUEFIED GAS TREATMENT SYSTEM

摘要

A liquefied gas treatment system according to an embodiment of the present invention includes a boil-off gas heat exchanger exchanging heat between boil-off gas, pressurized by a boil-off gas compressor and recovered along a boil-off gas supply line branching off upstream of a liquefied gas-consuming unit, and the boil-off gas, supplied from a liquefied gas storage tank, wherein the boil-off gas heat exchanger exchanges heat between the boil-off gas, pressurized by the boil-off gas compressor and recovered along the boil-off gas supply line, and flash gas, supplied through a vapor recovery line.

主权项

1. A liquefied gas treatment system, comprising:
a boil-off gas supply line connected from a liquefied gas storage tank to a liquefied gas-consuming unit; a boil-off gas compressor provided on the boil-off gas supply line and pressurizing boil-off gas generated from the liquefied gas storage tank; a boil-off gas heat exchanger provided upstream of the boil-off gas compressor on the boil-off gas supply line and exchanging heat between the boil-off gas, pressurized by the boil-off gas compressor and recovered along the boil-off gas supply line branching off upstream of the liquefied gas-consuming unit, and the boil-off gas, supplied from the liquefied gas storage tank; a boil-off gas decompressor provided on the boil-off gas supply line branching off upstream of the liquefied gas-consuming unit and decompressing the boil-off gas heat-exchanged by the boil-off gas heat exchanger; a vapor-liquid separator separating flash gas from the boil-off gas decompressed by the boil-off gas decompressor; and a vapor recovery line connected from the vapor-liquid separator to upstream of the boil-off gas heat exchanger and supplying the flash gas to the boil-off gas heat exchanger, wherein the boil-off gas heat exchanger exchanges heat between the boil-off gas, pressurized by the boil-off gas compressor and recovered along the boil-off gas supply line, and the flash gas, supplied through the vapor recovery line.