1995
DOI: 10.1007/bf00704999
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Activity coefficients of adsorbed mixtures

Abstract: Abstract. Experimental and simulated data for adsorption of gas mixtures on energetically heterogeneous surfaces like activated carbon and zeolites exhibit negative deviations from ideality. The deviations are large in some cases, with activity coefficients at infinite dilution equal to 0.1 or less. Similar molecules form ideal mixtures, but molecules of different size or polarity are nonideaI. Equations for bulk liquid mixtures (Wilson, Margules, etc.) do not apply to isobars for adsorbed mixtures. A two-cons… Show more

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Cited by 49 publications
(54 citation statements)
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“…All isotherm data at several temperatures were curve-fitted to equation (8) in a single regression step, as suggested by Talu et al [22]. The parameter values are listed in Table I.…”
Section: Phase Equilibrium Relationmentioning
confidence: 99%
“…All isotherm data at several temperatures were curve-fitted to equation (8) in a single regression step, as suggested by Talu et al [22]. The parameter values are listed in Table I.…”
Section: Phase Equilibrium Relationmentioning
confidence: 99%
“…N 2 is selectively adsorbed from the liquid; the maximum surface excess of 5 molecules/cavity occurs at a liquid composition of 20% N 2 . The quadratic shape skewed toward the more strongly adsorbed equation (Talu et al, 1995):…”
Section: Surface Excess For Adsorption From Liquid Phasementioning
confidence: 99%
“…A thorough thermodynamic treatment of adsorbed phase activity coefficients is also provided by Talu et.al. [29].…”
Section: Adsorbed Phase Activity Coefficientsmentioning
confidence: 95%