Document Type
Article
Publication Date
1995
Publication Title
Adsorption-Journal of the International Adsorption Society
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 nonideal. Equations for bulk liquid mixtures (Wilson, Margules, etc.) do not apply to isobars for adsorbed mixtures. A two-constant equation for activity coefficients as a function of composition and spreading pressure is in good agreement with theory, simulation, and experiment.
Repository Citation
Talu, Orhan; Li, Jianmin; and Myers, Alan L., "Activity Coefficients of Adsorbed Mixtures" (1995). Chemical & Biomedical Engineering Faculty Publications. 82.
https://engagedscholarship.csuohio.edu/encbe_facpub/82
Original Citation
Talu, O., Li, J., , & Myers, A. L. (1995). Activity coefficients of adsorbed mixtures. Adsorption, 1(2), 103 - 112. doi:10.1007/BF00704999
Volume
1
Issue
2
DOI
10.1007/BF00704999
Version
Postprint
Publisher's Statement
The final publication is available at Springer via http://dx.doi.org/10.1007/BF00704999
