Patent ID: 6722396
Filing Date: 2004-04-20
Classification: B64B,F17B

Abstract:
A method for filling large-volume gas containers with a process gas, comprising:first filling a gas container with an auxiliary gas that has a higher or lower density than the process gas; and quiescently introducing the process gas into the gas container so that no significant mixing with the auxiliary gas occurs, wherein if the density of the process gas is lower than that of the auxiliary gas, the process gas is introduced into an upper area of the gas container, while the auxiliary gas, or a mixture of auxiliary gas and process gas, is simultaneously removed by suction from a lower area of the gas container, wherein if the density of the process gas is higher than that of the auxiliary gas, the process gas is introduced into the lower area of the gas container, while the auxiliary gas, or a mixture of auxiliary gas and process gas, is simultaneously removed by suction from the upper area of the gas container.