LNG BOIL-OFF-GAS TREATMENT SYSTEM OF LNG BUNKERING SHIP

摘要

The present invention relates to a BOG processing apparatus (100) for a bunker LNG for a ship, comprising: a bunkering tank (130) having a fuel supply pump (210) and storing LNG; An LNG fuel tank 140 provided on a ship supplied with LNG gas from the bunkering tank 130; An LNG injection pipe 180 for supplying fuel from the bunkering tank 130 to the LNG fuel tank 140; A high-pressure CNG storage vessel 170 for storing a high-pressure gas compressed by the compressor, and a high-pressure CNG storage vessel 170 for storing high- Or BOG transportation means 150 that can be moved using an electric motor; A BOG outflow pipe 190 for supplying the LOG tank 140 with BOG gas to the BOG transportation unit 150; And a bypass pipe 200 branched from the BOG discharge pipe 190 and guiding a part of the BOG to be supplied to the BOG transportation means 150 to be recovered to the bunkering tank 130, And the BOG transportation means (150) is transferred to the customer and the liquefaction treatment device to recycle the BOG. According to the above configuration, the BOG stored in the high pressure state is transported and supplied as gas to the piping of the LNG acquisition unit or the city gas company, or a liquefaction processing unit of a capacity capable of processing a large amount of LNG bunkering occurrence high pressure BOG Liquefaction with LNG will greatly reduce the energy requirements and costs reused and provide a very useful treatment system that greatly improves the stability of the LNG bunkering system.