| abstract |
The invention relates to a process for the purification of a gas stream containing one or more gaseous impurities from the group formed by carbon dioxide, water vapor, H2 S, alcohols, SO2 and linear, branched hydrocarbons. or cyclic, saturated or unsaturated C1 -C8. The gas stream is brought into contact with several different porous carbonaceous adsorbents, that is to say activated carbons having different properties and characteristics. Gas is air, nitrogen, hydrogen produced by reforming or cracking ammonia or cracking alcohols or hydrocarbons, natural gas, combustion or fermentation gas. |