BOIL OFF GAS RELIQUEFACTION SYSTEM AND METHOD

摘要

A boil-off gas re-liquefaction system and method are disclosed. The boil-off gas re-liquefaction system comprises: an LNG storage tank which is formed in a ship; a compressor which compresses boil-off gas generated in the LNG storage tank; a heat exchanger which is formed on the upper side of the compressor and cools the compressed gas compressed in the compressor through the heat-exchange with the boil-off gas to be put into the compressor; and an inline mixer which is formed on the upper side of the heat exchanger and jets the LNG supplied from the LNG storage tank to the boil-off gas to be put into the heat exchanger to cool the boil-off gas. Therefore, the present invention improves re-liquefaction performance by lowering the temperature of boil-off gas.