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  Synergistic effects in competitive adsorption of carbohydrates on an ion-exchange resin

Nowak, J., Gedicke, K., Antos, D., Piatkowski, W., & Seidel-Morgenstern, A. (2007). Synergistic effects in competitive adsorption of carbohydrates on an ion-exchange resin. Journal of Chromatography A, 1164(1-2), 224-234. doi:10.1016/j.chroma.2007.07.022.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-9777-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-C53F-9
Genre: Journal Article

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 Creators:
Nowak, J.1, Author              
Gedicke, K.1, Author              
Antos, D.1, 2, Author              
Piatkowski, W.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              
2Rzeszow Univ Technol, Rzeszow, Poland, persistent:22              
3Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              

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Free keywords: Adsorption isotherms; Frontal analysis; Adsorption–desorption method; IAS theory; Sugars; Equilibrium theory
 Abstract: Adsorption of the three carbohydrates sucrose, glucose and fructose from aqueous solutions was investigated on an ion-exchange resin. The adsorption equilibrium of single components, binary and ternary mixtures was quantified by frontal analysis and the adsorption–desorption method. The experiments covered a concentration range up to 600 g/L at 60 °C and 80 °C. Within this range the adsorption isotherms of carbohydrates exhibited anti-Langmuirian behavior. Data of mixture adsorption revealed reversed competitive (synergistic or cooperative) effects, i.e., an increase of the concentration of one component of the mixture enhanced the adsorption of others. To model such an adsorption behavior the anti-Langmuir model has been used. The isotherm parameters determined for single components were used to simulate the competitive adsorption equilibria through the IAS (ideal adsorbed solution) theory. Finally, dynamic concentration profiles of multicomponent mixtures have been recorded. The shapes of adsorption and desorption curves confirmed the observed competitive effects found in the equilibrium studies. The breakthrough curves measured were simulated using the equilibrium theory as well as a numerical solution of the equilibrium dispersive model. Copyright © 2006 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. Method: -
 Identifiers: eDoc: 319428
DOI: 10.1016/j.chroma.2007.07.022
Other: 34/07
 Degree: -

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Title: Journal of Chromatography A
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 1164 (1-2) Sequence Number: - Start / End Page: 224 - 234 Identifier: ISSN: 0021-9673
CoNE: https://pure.mpg.de/cone/journals/resource/954925527837_1