Adsorption-stimulated deformation of microporous carbon adsorbent

Author: Yakovlev V.Y.   Fomkin A.A.   Tvardovski A.V.   Sinitsyn V.A.   Pulin A.L.  

Publisher: Springer Publishing Company

ISSN: 1066-5285

Source: Russian Chemical Bulletin, Vol.52, Iss.2, 2003-02, pp. : 354-358

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Abstract

Deformation of the ACC microporous carbon adsorbent during adsorption of carbon dioxide, nitrogen, and argon in the temperature interval from 243 to 393 K and at pressures of 1—5·106 Pa was studied. The effect of adsorbent contraction was found in the initial temperature interval at relatively low pressures. However, the negative value of relative linear deformation ΔL/L smoothly transforms into positive values with the pressure increase. Only the effect of adsorbent expansion is observed at high temperatures in the whole pressure interval. The dependence of the deformation effects for different systems on the adsorbent nature was revealed.