Thermodynamics of adsorption of krypton, xenon, nitrogen, and oxygen on microporous active carbon at temperatures above critical values

It was shown earlier that adsorption isotherms on microporous adsorbents at temperatures above the critical values can be described using the Dubinin-Radushkevich and Tolmachev-Aranovich equations when saturated adsorptive vapor pressures used as standard pressures at temperatures below the critical values are replaced by standard pressures P*(T) found by linear extrapolation of dependences of the logarithm of the saturated adsorptive vapor pressure on the inverse temperature. This was confirmed using the example of description of experimental adsorption isotherms of krypton, xenon, oxygen, and nitrogen on microporous active carbons AUK at the temperatures above the critical value.