Thermodynamics of Adsorption from Liquid Mixtures of Xylenes and p-Diethylbenzene on a Modified K—BaY Zeolite

Surface excess values for the adsorption of binary and ternary liquid mixtures, p-xylene/p-diethylbenzene, m-xylene/p-diethylbenzene, ethylbenzene/p-diethylbenzene, ethylbenzene/m-xylene and ethylbenzene/m-xylene/p-diethylbenzene on a modified K–BaY zeolite at 25°C are reported. Thermodynamic models...

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Main Authors: M.H. Li, H.C. Hsiao
Format: Article
Language:English
Published: SAGE Publications 1990-03-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1177/026361749000700102
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author M.H. Li
H.C. Hsiao
author_facet M.H. Li
H.C. Hsiao
author_sort M.H. Li
collection DOAJ
description Surface excess values for the adsorption of binary and ternary liquid mixtures, p-xylene/p-diethylbenzene, m-xylene/p-diethylbenzene, ethylbenzene/p-diethylbenzene, ethylbenzene/m-xylene and ethylbenzene/m-xylene/p-diethylbenzene on a modified K–BaY zeolite at 25°C are reported. Thermodynamic models for adsorption equilibrium have been applied to correlate the data. For data on binary systems, the characterized activity coefficients in the adsorbed phase and the adsorption equilibrium constant have been determined. Based on the method of Price and Danner, predictions of the adsorption equilibrium for the ternary systems have been carried out using parameters determined only from binary systems. For the ternary system ethylbenzene/m-xylene/p-diethylbenzene, the absolute average per cent deviations for the predicted values of the surface excess are 8.5% and 9.2% for ethylbenzene and m-xylene, respectively. Accordingly, the correlations obtained can be used to calculate the adsorption equilibrium for binary and ternary systems consisting of p-xylene, m-xylene, ethylbenzene and p-diethylbenzene on a modified K–BaY zeolite at 25°C.
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spelling doaj.art-d0dc5c67b4694b8b83ed45e3b00bf10a2024-03-03T03:36:20ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40381990-03-01710.1177/026361749000700102Thermodynamics of Adsorption from Liquid Mixtures of Xylenes and p-Diethylbenzene on a Modified K—BaY ZeoliteM.H. LiH.C. HsiaoSurface excess values for the adsorption of binary and ternary liquid mixtures, p-xylene/p-diethylbenzene, m-xylene/p-diethylbenzene, ethylbenzene/p-diethylbenzene, ethylbenzene/m-xylene and ethylbenzene/m-xylene/p-diethylbenzene on a modified K–BaY zeolite at 25°C are reported. Thermodynamic models for adsorption equilibrium have been applied to correlate the data. For data on binary systems, the characterized activity coefficients in the adsorbed phase and the adsorption equilibrium constant have been determined. Based on the method of Price and Danner, predictions of the adsorption equilibrium for the ternary systems have been carried out using parameters determined only from binary systems. For the ternary system ethylbenzene/m-xylene/p-diethylbenzene, the absolute average per cent deviations for the predicted values of the surface excess are 8.5% and 9.2% for ethylbenzene and m-xylene, respectively. Accordingly, the correlations obtained can be used to calculate the adsorption equilibrium for binary and ternary systems consisting of p-xylene, m-xylene, ethylbenzene and p-diethylbenzene on a modified K–BaY zeolite at 25°C.https://doi.org/10.1177/026361749000700102
spellingShingle M.H. Li
H.C. Hsiao
Thermodynamics of Adsorption from Liquid Mixtures of Xylenes and p-Diethylbenzene on a Modified K—BaY Zeolite
Adsorption Science & Technology
title Thermodynamics of Adsorption from Liquid Mixtures of Xylenes and p-Diethylbenzene on a Modified K—BaY Zeolite
title_full Thermodynamics of Adsorption from Liquid Mixtures of Xylenes and p-Diethylbenzene on a Modified K—BaY Zeolite
title_fullStr Thermodynamics of Adsorption from Liquid Mixtures of Xylenes and p-Diethylbenzene on a Modified K—BaY Zeolite
title_full_unstemmed Thermodynamics of Adsorption from Liquid Mixtures of Xylenes and p-Diethylbenzene on a Modified K—BaY Zeolite
title_short Thermodynamics of Adsorption from Liquid Mixtures of Xylenes and p-Diethylbenzene on a Modified K—BaY Zeolite
title_sort thermodynamics of adsorption from liquid mixtures of xylenes and p diethylbenzene on a modified k bay zeolite
url https://doi.org/10.1177/026361749000700102
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