Process of removing fluorinated compounds or fluorinated sulphur compounds from a xenon and/or krypton flow by permeation

摘要

The feed gas containing xenon and krypton and fluorinated and/or fluoro-sulfurated components is put in contact with at least a first membrane (11). On the outlet side of the membrane a production gas is recovered, containing xenon and krypton, but with at least part of the fluorinated and/or fluoro-sulfurated components removed. An Independent claim is also included for the use of a gas or gaseous mixture containing xenon and/or krypton free from fluorinated and/or fluoro-sulfurated components as an inter-wall isolation gas for sealed elements, in particular double-glazed windows, or as a plasmic propulsion gas for a satellite.