Abstract

Main features of the adsorption of gases, vapors, and liquids in microporous adsorbents, adsorption deformation, and adsorption thermodynamics are considered. Data is presented from calculating gas adsorption on microporous adsorbents in the supercritical range of temperatures using molecular dynamics and the theory of volume filling of micropores. It is shown that an adsorbate in micropores undergoes no extreme changes upon transitioning through a region of the gas phase critical state. In the adsorption of gases and vapors, the adsorption deformation of a rigid adsorbent is found to be no higher than 1% and is considerably governed by the surface chemistry and porous structure of the adsorbent.

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