Abstract
Methods for the description of adsorption equilibria for methane on microporous carbon adsorbents within the Dubinin theory of the volume filling of micropores are considered. Isotherms of methane adsorption on eight carbon adsorbents are calculated and compared with the experimental data in the temperature range of 170–350 K at pressures up to 20 MPa. An analysis of the errors of the description of experimental data by the methods used is performed. A method of description based on the use of two isotherms of methane adsorption (at the boiling point and critical temperature) calculated using the Dubinin-Radushkevich equation and the property of the linearity of adsorption isosteres is recommended.
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