Impact of the adsorbate compressibility on the calculation of the micropore volume

Pure methane, carbon dioxide, and nitrogen adsorption on anthracite from China over a wide range of pressures and temperatures: experiments and modeling

“…One possible reason for this is that the adsorbate molecules can be adsorbed only in spaces with a diameter smaller than the characteristic pore, which decreases with the increasing temperature. Dubinin et al, 57 Sakurovs et al 58 and Zhang et al 16 also observed this phenomenon in their studies. Moreover, the monolayer adsorption capacities for CO 2 on coal are higher than for CH 4 and N 2 in Fig.…”

Supercritical Pure Methane and CO2 Adsorption on Various Rank Coals of China: Experiments and Modeling

“…However, n 0 shows a slight downtrend as temperature rises for all the coal samples. Dubinin et al 40 and Sakurovs et al 41 Energy & Fuels ARTICLE observed this situation in their experiments. Dubinin attributes this effect to the adsorbate compressibility, which is related to the interaction among adsorbed molecules.…”

New model describing adsorption from liquid binary mixtures of nonelectrolytes with limited and unlimited miscibility of components

“…Therefore, in this method one cannot postulate a mechanism but instead, one can assume a characteristic thermodynamic function (and its distribution) describing adsorption process. But both assumptions must be postulated, and the postulates must be in accordance with previously accepted solutions and/or axioms and, moreover, one must observe the accor- (17) in our opinion allow to accept postulate 3, and its validity is also confirmed by high DC values obtained from description of experimental data (Tables 1 and 2). Of course we realize that postulate 3 does not provide the only possible type of F(A) function, but in our opinion the form proposed in our study leads to satisfactory results.…”

“…The relationships between both parameters of the DA equation and the average pore diameter were proposed recently [14][15][16]. Dubinin's approach was modified to take into account the compressibility of the adsorbate in the calculation of pore volumes [17]. Some theoretical studies also point out that the state of adsorbate molecules in micropores is different from that of the molecules in bulk [18].…”