| abstract |
The present invention relates to the use, for the separation and / or drying of gases, of at least one zeolite adsorbent material comprising at least one type A zeolite, said adsorbent having an external surface greater than 20 m 2 g -1 , a non-zeolitic phase (PNZ) content such that 0 <PNZ ≤ 30%, and an Si / Al atomic ratio of between 1.0 and 2.0. The invention also relates to a zeolitic adsorbent material having an Si / Al ratio of between 1.0 and 2.0, a mesoporous volume of between 0.07 cm3g-1 to 0.18 cm3g-1, a ratio of Vmicro - Vmeso) / Vmicro between -0.3 and 1.0, terminals not included, and a non - zeolitic phase (PNZ) content such that 0 <PNZ ≤ 30%. |