Absorbent with improved mass transfert for PSA or VSA process

摘要

The invention relates to a shaped adsorbent material, comprising an adsorbing solid phase and a gas phase providing transport of gas components to the adsorbent, constituted such that the constant transport kinetics of adsorbable components in the phase gas and in the solid phase are in a ratio of between 0.1 and 10, determined for a velocity of flow of gas equal to 0.2 ms ^-1 measured on air at 1 bar and 20 ° C or in a ratio between 0.1 and 10, determined for a velocity of flow of gas equal to 0.01 ms ^-1 measured on hydrogen at 30 bar and 40 ° C.; The invention also relates to the use of an adsorbent material to separate or purify gas mixtures, such as air or synthesis gas to produce hydrogen.