Abstract: The invention relates to a method for reliquefying boil-off gas (BOG) containing volatile components, the method comprising the following steps: a) compressing a BOG stream, wherein the BOG stream exits a final compression stage as a finally compressed BOG stream having a final pressure; b) condensing the finally compressed BOG stream to obtain an at least partly condensed, finally compressed fluid stream; c) providing a fluid receptacle having a fluid stream inlet and a fluid stream outlet, wherein the position of the fluid stream outlet is selected such that it is above a predefined fluid containment volume; d) feeding the fluid stream from step b) through the fluid stream inlet into the fluid receptacle; e) setting a liquid level setpoint for the fluid receptacle such that the liquid level setpoint is at the level of the upper edge of the fluid stream outlet or a predefined amount above it; f) setting an upper final pressure limit for the final compression stage; g) measuring the liquid level in the fluid

Abstract: The invention relates to a method for operating a liquefied gas storage tank (1) having a tank volume (2) for receiving LNG and boil-off gas (BOG), wherein a gaseous BOG stream and a liquid LNG stream are fed to the tank volume, and wherein the BOG stream is introduced into the LNG stream, and wherein subsequently the resulting BOG-LNG mixture is introduced into the tank volume. The invention also relates to a corresponding liquefied gas storage tank.

Abstract: Device for supplying evaporated gas from a storage tank to a consumer at varying pressure and mass flow requirements, having: a high-pressure pump for the liquefied gas, the speed of which determines the mass flow of the pumped liquefied gas; an evaporator for the liquefied gas; a pressure-regulating valve for the evaporated gas, the outlet of which is connected to the consumer; a first regulator, the measured variable of which is the pressure of the evaporated gas and the manipulated variable of which acts on the pressure-regulating valve; a second regulator, the measured variable of which is the pressure of the gas and the manipulated variable of which acts on a rotational speed controller for the high-pressure pump; and means for combining the manipulated variable of the two regulators in such a manner that the manipulated variable of the first regulator additionally acts on the rotational speed controller.

Abstract: Device for supplying evaporated gas from a storage tank for refrigerated liquefied gas with regulated pressure to a consumer, the requirements of which for pressure and mass flow of the gas vary widely, the device having: a motor operated high-pressure pump for the liquefied gas, the driving rotational speed of which determines the mass flow of the pumped liquefied gas; downstream of the high-pressure pump an evaporator for the liquefied gas; downstream of the evaporator a pressure-regulating valve for the evaporated gas, the outlet of which is connected to the consumer; a first regulator, the measured variable of which is the pressure of the evaporated gas downstream of the pressure regulating valve and the manipulated variable of which acts on the pressure-regulating valve; a second regulator, the measured variable of which is the pressure of the gas between the high-pressure pump and the pressure-regulating valve and the manipulated variable of which acts on a rotational speed controller for the high-press