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  Determination of competitive adsorption isotherms applying the nonlinear frequency response method: Part II. Experimental demonstration

Ilic, M., Petkovska, M., & Seidel-Morgenstern, A. (2009). Determination of competitive adsorption isotherms applying the nonlinear frequency response method: Part II. Experimental demonstration. Journal of Chromatography A, 1216(33), 6108-6118. doi:10.1016/j.chroma.2009.06.052.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-93A1-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-B534-6
Genre: Journal Article

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 Creators:
Ilic, M.1, Author              
Petkovska, M.2, Author
Seidel-Morgenstern, A.1, 3, Author              
Affiliations:
1Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society, ou_1738150              
2Faculty of Technology and Metallurgy, Department of Chemical Engineering, Belgrade, Serbia, ou_persistent22              
3Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              

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Free keywords: Adsorption isotherms; Binary mixture; Liquid chromatography; Nonlinear frequency response; Harmonic analysis; Higher order frequency response functions; Parameter estimation
 Abstract: This paper demonstrates an experimental application of the nonlinear frequency response (FR) method extension to determine adsorption isotherms of binary mixtures. This method, based on the analysis of the response of a chromatographic column subjected to the sinusoidal inlet concentration changes, is shown to be an alternative for isotherm determination. The critical issue related to the successful application of the method is to reach experimentally the low frequency asymptotic behaviour of the corresponding frequency response functions (FRFs). Although, there are different possibilities to perform periodical inlet concentration changes, in this paper only simultaneous changes for both components were considered. The adsorption of phenol and 2-phenylethanol on octadecyl silica was analyzed experimentally using a mixture of methanol and water as a solvent. Parameters of competitive isotherms were also estimated for comparison using the classical perturbation method. Despite certain differences between competitive isotherms estimated with the two methods that were found, the obtained results show the potential of the nonlinear FR method for measuring competitive isotherms. Copyright © 2009 Elsevier B.V. All rights reserved. [accessed November 25, 2009]

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Language(s): eng - English
 Dates: 2009
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 437226
DOI: 10.1016/j.chroma.2009.06.052
 Degree: -

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Title: Journal of Chromatography A
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 1216 (33) Sequence Number: - Start / End Page: 6108 - 6118 Identifier: ISSN: 0021-9673
CoNE: https://pure.mpg.de/cone/journals/resource/954925527837_1