Ship boil-off gas reliquefaction system

Abstract

A ship boil-off gas reliquefaction system includes: a compression part comprising a first compressor receiving and compressing boil-off gas generated from liquefied gas in a cargo tank provided to a ship and a second compressor further compressing the boil-off gas compressed in the first compressor, and performing multistage compression of the boil-off gas; an intercooler supplying the boil-off gas compressed in the first compressor to the second compressor after cooling the compressed boil-off gas received from the first compressor; a condenser cooling the boil-off gas compressed through the compression part; a reliquefied gas recovery line delivering liquefied gas cooled and condensed in the condenser to the cargo tank after recovery of cold heat from the liquefied gas through the intercooler; and a first temperature regulation line branching the liquefied gas from the reliquefied gas recovery line and spraying the liquefied gas onto the top of the intercooler.

Dependencies are inferred from the claim text.