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  Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part I: Theoretical basis and simulations

Ilic, M., Petkovska, M., & Seidel-Morgenstern, A. (2007). Nonlinear frequency response method for estimation of single solute adsorption isotherms. Part I: Theoretical basis and simulations. Chemical Engineering Science, 62(16), 4379-4393. doi:10.1016/j.ces.2007.05.004.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-979F-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-B66C-4
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              
2University of Belgrade, Department of Chemical Engineering, Faculty of Technology and Metallurgy, Belgrade, Serbia, ou_persistent22              
3Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              

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Free keywords: Adsorption isotherms; Liquid chromatography; Nonlinear frequency response; Harmonic analysis; Higher-order frequency response functions; Numerical analysis
 Abstract: A method for determination of single solute adsorption isotherms based on the analysis of the nonlinear frequency response of a chromatographic column is developed theoretically. In order to demonstrate this method, the frequency response of a chromatographic column is simulated for the periodical inlet concentration changes (sine waveform) around several steady-state concentrations. The frequency response functions (FRFs) up to the third order are calculated from the inlet and outlet concentration changes, which are analyzed using the fast Fourier transform. Afterwards the coefficients of an adsorption isotherm are estimated from the low frequency asymptotes of the FRFs and their derivatives. The obtained coefficients compare well with those used for simulations. Also discussed are some aspects that might affect the accuracy of the suggested method when it is applied to the analysis of experimental data, e.g. influence of velocity fluctuations, noise and size of the analyzed data sample. Copyright © 2007 Elsevier Ltd. All rights reserved. [accessed 2013 November 26th]

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Language(s): eng - English
 Dates: 2007
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 298318
Other: 11/07 a
DOI: 10.1016/j.ces.2007.05.004
 Degree: -

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Title: Chemical Engineering Science
  Other : Chem. Eng. Sci.
Source Genre: Journal
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Affiliations:
Publ. Info: Amsterdam : Pergamon
Pages: - Volume / Issue: 62 (16) Sequence Number: - Start / End Page: 4379 - 4393 Identifier: ISSN: 0009-2509
CoNE: https://pure.mpg.de/cone/journals/resource/954925389239