| abstract |
The present invention relates to the use of at least one zeolite adsorbent material comprising at least one type A zeolite, for gas separation and / or gas drying, wherein the adsorbent has an external surface area of greater than 20 m 2 .g −1 , A non-zeolitic phase (PNZ) content with 0 <PNZ <30%, and a Si / Al atomic ratio between 1.0 and 2.0. The invention also provides a Si / Al ratio between 1.0 and 2.0, a mesoporous volume between 0.07 cm 3 .g −1 and 0.18 cm 3 .g −1 , and a (Vmicro-Vmeso) of between -0.3 and 1.0 (without boundary). / Vmicro, and a zeolitic adsorbent material having a non-zeolitic phase (PNZ) content with 0 <PNZ <30%. |