Generalization of thermodynamic Langmuir isotherm for mixed‐gas adsorption equilibria

Hamid, Usman; Vyawahare, Pradeep; Tun, Hla; Chen, Chau‐Chyun

doi:10.1002/aic.17663

Title: Generalization of thermodynamic Langmuir isotherm for mixed‐gas adsorption equilibria

Abstract

Abstract This work presents a comprehensive thermodynamic model for both pure component isotherms and mixed‐gas adsorption equilibria. A generalization of thermodynamic Langmuir isotherm, the proposed model assumes competitive adsorption of multiple adsorbates on adsorbent surface for mixed‐gas adsorption equilibria, and it applies an area‐based adsorption nonrandom two‐liquid activity coefficient model in the activity coefficient calculations for the adsorbate phase. The resulting generalized Langmuir isotherm properly captures both surface loading dependence and adsorbate phase composition dependence for mixed‐gas adsorption equilibria. The model is validated with accurate representations of gas adsorption equilibrium data for varieties of unary, binary, and ternary gas systems. The model results are further compared with those calculated from extended Langmuir isotherm and Ideal Adsorbed Solution Theory.

Authors:

^[1];

^[1]; Tun, Hla ^[1];

^[1]

Department of Chemical Engineering Texas Tech University Lubbock Texas USA

Publication Date:: Mon Mar 07 00:00:00 EST 2022

Sponsoring Org.:: USDOE

OSTI Identifier:: 1848009

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: AIChE Journal

Additional Journal Information:: Journal Name: AIChE Journal Journal Volume: 68 Journal Issue: 6; Journal ID: ISSN 0001-1541

Publisher:: Wiley Blackwell (John Wiley & Sons)

Country of Publication:: United States

Language:: English

Citation Formats


                    Hamid, Usman, Vyawahare, Pradeep, Tun, Hla, and Chen, Chau‐Chyun. Generalization of thermodynamic Langmuir isotherm for mixed‐gas adsorption equilibria.  United States: N. p., 2022. 
Web.  doi:10.1002/aic.17663.

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                    Hamid, Usman, Vyawahare, Pradeep, Tun, Hla, & Chen, Chau‐Chyun. Generalization of thermodynamic Langmuir isotherm for mixed‐gas adsorption equilibria.  United States.  https://doi.org/10.1002/aic.17663

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                    Hamid, Usman, Vyawahare, Pradeep, Tun, Hla, and Chen, Chau‐Chyun. Mon .  
"Generalization of thermodynamic Langmuir isotherm for mixed‐gas adsorption equilibria".  United States.  https://doi.org/10.1002/aic.17663.

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@article{osti_1848009,

  title        = {Generalization of thermodynamic Langmuir isotherm for mixed‐gas adsorption equilibria},

  author       = {Hamid, Usman and Vyawahare, Pradeep and Tun, Hla and Chen, Chau‐Chyun},

  abstractNote = {Abstract This work presents a comprehensive thermodynamic model for both pure component isotherms and mixed‐gas adsorption equilibria. A generalization of thermodynamic Langmuir isotherm, the proposed model assumes competitive adsorption of multiple adsorbates on adsorbent surface for mixed‐gas adsorption equilibria, and it applies an area‐based adsorption nonrandom two‐liquid activity coefficient model in the activity coefficient calculations for the adsorbate phase. The resulting generalized Langmuir isotherm properly captures both surface loading dependence and adsorbate phase composition dependence for mixed‐gas adsorption equilibria. The model is validated with accurate representations of gas adsorption equilibrium data for varieties of unary, binary, and ternary gas systems. The model results are further compared with those calculated from extended Langmuir isotherm and Ideal Adsorbed Solution Theory.},

  doi          = {10.1002/aic.17663},

  journal      = {AIChE Journal},

  number       = 6,

  volume       = 68,

  place        = {United States},

  year         = {Mon Mar 07 00:00:00 EST 2022},

  month        = {Mon Mar 07 00:00:00 EST 2022}

}

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Title: Generalization of thermodynamic Langmuir isotherm for mixed‐gas adsorption equilibria

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Predicting multicomponent adsorption: 50 years of the ideal adsorbed solution theory
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Activity coefficients of adsorbed mixtures
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Seven chemical separations to change the world
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On thermodynamic separation efficiency: Adsorption processes
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The Adsorption of gas Mixtures by Silica
journal, February 1931

Multicomponent adsorption equilibria of nonideal mixtures
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Local composition activity coefficient model for mixed-gas adsorption equilibria
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Equilibrium adsorption of methane, ethane, ethylene, and propylene and their mixtures on activated carbon
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Adsorption of binary and ternary hydrocarbon gas mixtures on activated carbon: Experimental determination and theoretical prediction of the ternary equilibrium data
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Analyzing the Adaption of Different Adsorption Models for Describing the Shale Gas Adsorption Law
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Equilibrium Adsorption Isotherms of Pure N ₂ and O ₂ and Their Binary Mixtures on LiLSX Zeolite: Experimental Data and Thermodynamic Analysis
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Adsorption of carbon dioxide, methane and nitrogen: pure and binary mixture adsorption for ZSM-5 with SiO2/Al2O3 ratio of 280
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