Device and method for transferring cryogenic fluid

A method for transferring cryogenic fluid between a first tank and a second cryogenic tank, the method comprising the steps of:

• providing a cryogenic fluid transfer device comprising:
• the first tank configured to distribute cryogenic fluid, said first tank storing a cryogenic fluid with a lower liquid phase and an upper gas phase,
• the second cryogenic tank housing a cryogenic fluid comprising a lower liquid phase and an upper gas phase,
• a fluid transfer circuit connecting the first tank and the second cryogenic tank, the fluid transfer circuit comprising:
• a first pipe that connects the upper parts of the first tank and the second cryogenic tank and comprises at least one first valve,
• a second transfer pipe that connects the lower part of the first tank to the second cryogenic tank, the second transfer pipe comprising a pump having an inlet connected to the first tank and an outlet connected to the second cryogenic tank, the pump and the first valve being configured to place the upper parts of the first tank and the second cryogenic tank in fluidic communication by opening the first valve,
• wherein the first pipe further comprises a bypass portion equipped with a heater and a set of one or more valves configured to modify a temperature of a flow of gas transferred from the second cryogenic tank to the first tank via the first pipe,
• transferring liquid from the first tank to the second cryogenic tank via the pump;
• and,
• prior to and/or simultaneously with this liquid transfer step, placing the upper parts of the first and second tanks in fluidic communication by opening the first valve,
• circulating, in the first pipe, a flow of gas taken from the second cryogenic tank,
• wherein the flow of gas circulated in the first pipe is transferred into the first tank at a determined temperature controlled by regulating the proportion of the flow of gas allowed to pass through the bypass portion.