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Addressing spreading pressure dependence of real adsorbed solution theory with generalized Langmuir isotherm
Abstract
This work addresses spreading pressure dependence of Real Adsorbed Solution Theory (RAST) for mixed-gas adsorption equilibria using generalized Langmuir (gL) isotherm. Considering vacant sites as an integral part of competitive multicomponent adsorption on a constant adsorbent surface area, the gL isotherm properly accounts for surface heterogeneity and loading, adsorbate composition, and temperature dependence. We show the spreading pressure dependence of adsorbate activity coefficient expression in the RAST framework can be generated from the gL isotherm. The procedure is illustrated with a spreading pressure dependent adsorption Nonrandom Furthermore, two-Liquid activity coefficient model, and the results are validated for ten binary mixed-gas adsorption equilibria systems including two highly nonideal azeotropic systems.
- Publication Date:
- Research Org.:
- RAPID Manufacturing Institute, New York, NY (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 2222463
- Grant/Contract Number:
- EE0007888
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Adsorption
- Additional Journal Information:
- Journal Volume: 29; Journal Issue: 7-8; Journal ID: ISSN 0929-5607
- Publisher:
- Springer Nature
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; adsorption Nonrandom Two-Liquid model; generalized Langmuir isotherm; mixed-gas adsorption equilibria; real adsorbed solution theory; spreading pressure dependence
Citation Formats
Vyawahare, Pradeep, Hamid, Usman, Sees, Michael D., and Chen, Chau-Chyun. Addressing spreading pressure dependence of real adsorbed solution theory with generalized Langmuir isotherm. United States: N. p., 2023.
Web. doi:10.1007/s10450-023-00414-x.
Vyawahare, Pradeep, Hamid, Usman, Sees, Michael D., & Chen, Chau-Chyun. Addressing spreading pressure dependence of real adsorbed solution theory with generalized Langmuir isotherm. United States. https://doi.org/10.1007/s10450-023-00414-x
Vyawahare, Pradeep, Hamid, Usman, Sees, Michael D., and Chen, Chau-Chyun. Sat .
"Addressing spreading pressure dependence of real adsorbed solution theory with generalized Langmuir isotherm". United States. https://doi.org/10.1007/s10450-023-00414-x.
@article{osti_2222463,
title = {Addressing spreading pressure dependence of real adsorbed solution theory with generalized Langmuir isotherm},
author = {Vyawahare, Pradeep and Hamid, Usman and Sees, Michael D. and Chen, Chau-Chyun},
abstractNote = {This work addresses spreading pressure dependence of Real Adsorbed Solution Theory (RAST) for mixed-gas adsorption equilibria using generalized Langmuir (gL) isotherm. Considering vacant sites as an integral part of competitive multicomponent adsorption on a constant adsorbent surface area, the gL isotherm properly accounts for surface heterogeneity and loading, adsorbate composition, and temperature dependence. We show the spreading pressure dependence of adsorbate activity coefficient expression in the RAST framework can be generated from the gL isotherm. The procedure is illustrated with a spreading pressure dependent adsorption Nonrandom Furthermore, two-Liquid activity coefficient model, and the results are validated for ten binary mixed-gas adsorption equilibria systems including two highly nonideal azeotropic systems.},
doi = {10.1007/s10450-023-00414-x},
journal = {Adsorption},
number = 7-8,
volume = 29,
place = {United States},
year = {Sat Oct 28 00:00:00 EDT 2023},
month = {Sat Oct 28 00:00:00 EDT 2023}
}
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