alexa Determination by Modeling of the Interactions during the Adsorption Equilibrium of N-Propanol and Ortho Xylene on Activated Carbon Surface | OMICS International
ISSN: 2157-7048

Journal of Chemical Engineering & Process Technology
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Research Article

Determination by Modeling of the Interactions during the Adsorption Equilibrium of N-Propanol and Ortho Xylene on Activated Carbon Surface

Abdouelilah Hachimi*
Research Institute of Catalysis and Environment of Lyon (IRCELYON), UMR 5256 CNRS, Claude University, Bernard Lyon I, Villeurbanne, France
Corresponding Author : Abdouelilah Hachimi
Research Institute of Catalysis and Environment of Lyon (IRCELYON)
UMR 5256 CNRS, Claude University, Bernard Lyon I, Villeurbanne, France
Tel: +33782676957
E-mail: [email protected]
Received July 16, 2014; Accepted August 28, 2014; Published September 01, 2014
Citation: Hachimi A (2014) Determination by Modeling of the Interactions during the Adsorption Equilibrium of N-Propanol and Ortho Xylene on Activated Carbon Surface. J Chem Eng Process Technol 5:206. doi:10.4172/2157-7048.1000206
Copyright: © 2014 Hachimi A. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Temperature Programmed Adsorption Equilibrium (TPAE) procedure was used to determine the heats of adsorption of ortho xylene and 1-propanol on activated carbon at 300 K. The evolutions of the surface coverage with the adsorption temperature (θe=f(Ta)) were compared to the Temkin model in order to determine the heats of adsorption and reveal the affinity to the surface of activated carbon regarding the polarity of each adsorbate. It has been shown that the heats of adsorption of ortho xylene were Eθ0=100 kJ/mol and Eθ1=62 kJ/mol at 185 Pa, respectively, at low and high surface coverage. Whereas the heats of adsorption of 1-propanol at the adsorption equilibrium was found to be dependent to the surface coverage with Eθ0=67 kJ/mol and Eθ1=58 kJ/mol at 475 Pa. It was shown that ortho-xylene molecules have more affinity to the activated carbon surface than 1-propanol regarding the difference in the heats of adsorption.

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