An Adsorption Equilibria Model for Steady State Analysis

Handle URI:
http://hdl.handle.net/10754/600683
Title:
An Adsorption Equilibria Model for Steady State Analysis
Authors:
Ismail, Azhar Bin; Sabnani, Karan M.; Ang, Li; Ng, Kim Choon ( 0000-0003-3930-4127 )
Abstract:
The investigation of adsorption isotherms is a prime factor in the ongoing development of adsorption cycles for a spectrum of advanced, thermally-driven engineering applications, including refrigeration, natural gas storage, and desalination processes. In this work, a novel semi-empirical mathematical model has been derived that significantly enhances the prediction of the steady state uptake in adsorbent surfaces. This model, a combination of classical Langmuir and a novel modern adsorption isotherm equation, allows for a higher degree of regression of both energetically homogenous and heterogeneous adsorbent surfaces compared to several isolated classical and modern isotherm models, and has the ability to regress isotherms for all six types under the IUPAC classification. Using a unified thermodynamic framework, a single asymmetrical energy distribution function (EDF) has also been proposed that directly relates the mathematical model to the adsorption isotherm types. This fits well with the statistical rate theory approach and offers mechanistic insights into adsorption isotherms.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
An Adsorption Equilibria Model for Steady State Analysis 2016, 7 (2):274 International Journal of Technology
Publisher:
International Journal of Technology
Journal:
International Journal of Technology
Issue Date:
29-Feb-2016
DOI:
10.14716/ijtech.v7i2.2970
Type:
Article
ISSN:
2087-2100; 2086-9614
Sponsors:
The authors gratefully acknowledge the financial support for this project from the King Abdullah University of Science and Technology (Grant No. 7000000411) and the National Research Foundation Singapore (Grant WBS No. R-265-000-466-281).
Additional Links:
http://www.ijtech.eng.ui.ac.id/index.php/journal/article/view/2970
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorIsmail, Azhar Binen
dc.contributor.authorSabnani, Karan M.en
dc.contributor.authorAng, Lien
dc.contributor.authorNg, Kim Choonen
dc.date.accessioned2016-03-07T07:52:48Zen
dc.date.available2016-03-07T07:52:48Zen
dc.date.issued2016-02-29en
dc.identifier.citationAn Adsorption Equilibria Model for Steady State Analysis 2016, 7 (2):274 International Journal of Technologyen
dc.identifier.issn2087-2100en
dc.identifier.issn2086-9614en
dc.identifier.doi10.14716/ijtech.v7i2.2970en
dc.identifier.urihttp://hdl.handle.net/10754/600683en
dc.description.abstractThe investigation of adsorption isotherms is a prime factor in the ongoing development of adsorption cycles for a spectrum of advanced, thermally-driven engineering applications, including refrigeration, natural gas storage, and desalination processes. In this work, a novel semi-empirical mathematical model has been derived that significantly enhances the prediction of the steady state uptake in adsorbent surfaces. This model, a combination of classical Langmuir and a novel modern adsorption isotherm equation, allows for a higher degree of regression of both energetically homogenous and heterogeneous adsorbent surfaces compared to several isolated classical and modern isotherm models, and has the ability to regress isotherms for all six types under the IUPAC classification. Using a unified thermodynamic framework, a single asymmetrical energy distribution function (EDF) has also been proposed that directly relates the mathematical model to the adsorption isotherm types. This fits well with the statistical rate theory approach and offers mechanistic insights into adsorption isotherms.en
dc.description.sponsorshipThe authors gratefully acknowledge the financial support for this project from the King Abdullah University of Science and Technology (Grant No. 7000000411) and the National Research Foundation Singapore (Grant WBS No. R-265-000-466-281).en
dc.language.isoenen
dc.publisherInternational Journal of Technologyen
dc.relation.urlhttp://www.ijtech.eng.ui.ac.id/index.php/journal/article/view/2970en
dc.rightsThis journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Its free availability on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles, crawl them for indexing, pass them as data to software, or use them for any other lawful purpose, without financial, legal, or technical barriers other than those inseparable from gaining access to the internet itself.en
dc.subjectAdsorptionen
dc.subjectEnergy distribution functionen
dc.subjectStatistical rate theoryen
dc.subjectUniversal isotherm modelen
dc.titleAn Adsorption Equilibria Model for Steady State Analysisen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalInternational Journal of Technologyen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576en
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorIsmail, Azhar Binen
kaust.authorSabnani, Karan M.en
kaust.authorNg, Kim Choonen
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