Intermediate Temporary Boil-Off Gas Storage Equipment for LNG Bunkering

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PURPOSE : A temporarily boil-off gas storing apparatus for bunkering liquefied natural gas(LNG) and a method for re-liquefying boil-off gas are provided to prevent non-liquefied boil-off gas from being discharged to atmosphere.CONSTITUTION : A temporarily boil-off gas storing apparatus for bunkering LNG is composed of an LNG supplying line(300) and an LNG collecting line(400). The LNG supplying line is in connection with an LNG fuel tank(200) in a vessel and an LNG fuel tank(100) in a fuel supplying vessel. The LNG fuel tank in the fuel supplying vessel supplies LNG to the LNG fuel tank in the vessel. The LNG collecting line is in connection with both LNG fuel tanks to collect boil-off gas generated from the fuel supplying process. A re-liquefying unit(440) and a boil-off gas absorbing unit(410) are formed at the LNG collecting line.[Reference numerals] (AA) Gas fuel sourceCOPYRIGHT KIPO 2013