Thermodynamics of adsorption on microporous adsorbents above critical temperatures

Absolute adsorption isotherms of gases and vapors within the lattice model

“…In most cases, the actual size of the micropores allow placement of one or two layers of adsorbate in them and the corresponding equations for one ((4), (6), and (7)) and two layer (5), (6), and (7) models have the following form [9]:…”

“…In this regard, considerable interest was found in proving the possibility to employ Eqs. (4-7) and the DubininRadushkevich (Dubinin-Astakhov) equations [11,12] to describe the adsorption isotherms of gases at temperatures above critical obtained in [9].…”

A priori calculation of adsorption equilibria on microporous active carbons

“…On the other hand, it has been shown [3,4] that Eq. (1) and the Tolmachev-Aranovich set of equa tions for the absolute adsorption (see Eqs.…”

“…Equations (6)-(9) quantitatively describe the experimental isotherms below and above the critical temperature in the entire range of a i /a 0i ratios [3,4,6,7]. Thus, considering the isotherms calculated a priori by the molecular dynamics method like the "experi mental ones," one can obtain the constants of Eqs.…”

“…(7)-(9) for methane adsorption on PAU 10 microporous active carbon below and above the critical temperature: T = (2, 5) 150,(3,6) 370, and (4, 7) 600 K.…”