| abstract |
The invention concerns a method for purifying a cryogenic fluid selected from the group formed by helium, hydrogen, deuterium, argon, neon, xenon or krypton in liquid state, diphase, gaseous or supercritical, having a boiling point Pe, in one at least of its impurities having a boiling point Pe', with Pe' > Pe, comprising at least: a step of filtering at least one impurity in solid state using a mechanical filter; and a step of adsorption of at least one impurity in liquid or gaseous state; and in which at least part of the cryogenic fluid at least partially purified is recuperated, said fluid containing not more than 1 ppb of impurities. The invention also concerns a device for implementing the method. |