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BREAKTHROUGH CURVE STUDIES OF PUROLITE A-400 IN AN ADSORPTION COLUMN

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Author(s): Somayeh Kananpanah | Mohammad Ayazi | Hossein Abolghasemi

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 51;
Issue: 3;
Start page: 189;
Date: 2009;
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Keywords: ion-exchange | mass transfer | breakthrough | PUROLITE A-400 | Salicylic acid.

ABSTRACT
Ion-exchange adsorption of salicylic acid by strongly-base anion exchange resin PUROLITE A-400 wasinvestigated to define the effect of feed flow rate on breakthrough curves and mass transfercoefficient. The equilibrium conditions by the usage of batch test were investigated. Two isothermmodels Feroundlich and Langmuir fit the entire experimental data well (R2> 98%). Series of columntest at different three flow rates (5.5, 7 and 8.5ml/min) were performed. As a result of column testexperiment breakthrough curves and mass transfer coefficient by the usage of constant wavepropagation theory were obtained. As the results showed volumetric feed flow rates are increased bythe increasing of feed flow rates in contrast of the maximum amount of adsorption. So that we shouldbe determined optimize flow rate for the adsorption process.
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