Abstract
1. A system of calculation for the theory of adsorption in microporous carbon adsorbents for the critical region, i.e., the gaseous state of the adsorbed substance, was developed based on the well-known experimental finding of the linearity of the adsorption isosteres. 2. The isotherms of adsorption of nitrogen by a microporous carbon adsorbent in the 123–293°K temperature and 2–75 kPa pressure regions were studied by a volumetric method. 3. The adsorption isostere and the standard volatilities based on its parameters for all temperatures studied were calculated with the parameters of the equation for the adsorption isotherm in the theory of volumetric filling of micropores at 123°K and one experimental isotherm at 183°K in the critical region. This permitted calculating the nitrogen adsorption isotherms for the same temperatures. The results of the calculations were in satisfactory agreement with the experimental results.
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