Patent ID: 8028724

Claim:
A method of receiving LNG from an LNG tank containing LNG, the method comprising: providing a receiving tank; connecting between the receiving tank and an LNG tank containing LNG such that a fluid communication between the receiving tank and the LNG tank is established; and receiving at least part of the LNG into the receiving tank from the LNG tank, in which the LNG has a vapor pressure from about 0.3 bar to about 2 bar, wherein the LNG tank is integrated with a ship, the ship comprising: the LNG tank configured to contain LNG in both liquid and gaseous phases therein, wherein the LNG tank has a volume; a primary engine of the ship for generating power to move the ship, wherein the engine is designed to use a fuel other than LNG such that the engine does not use LNG to reduce vapor pressure of the LNG within the LNG tank; and at least one liquefier configured to convert at least a portion of gaseous phase LNG to liquid phase LNG, wherein the at least one liquefier has a processing capacity, which is the maximum amount of gaseous phase LNG to be processed by the at least one liquefier for one hour, wherein a ratio of the processing capacity to the volume is smaller than about 0.015 kg/m 3 .