Adsorption of flavour esters on granular activated carbon

Ismadji, Suryadi ; Bhatia, Suresh K. (2000) Adsorption of flavour esters on granular activated carbon Canadian Journal of Chemical Engineering, 78 (5). pp. 892-901. ISSN 0008-4034

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This article reports on the liquid phase adsorption of flavour esters onto granular activated carbon. Ethyl propionate, ethyl butyrate, and ethyl isovalerate were used as adsorbates, and Filtrasorb 400 activated carbon was chosen as the adsorbent. Sips, Toth, Unilan, and Dubinin-Radushkevich isotherm equations which are generally used for heterogeneous adsorbents were used to fit the data. Although satisfactory in fitting the data, inconsistency in parameter values indicated these models to be inadequate. On the other hand the Dubinin-Radushkevich model gave more consistent and meaningful parameter values and adsorption capacities. By employing the Dubinin-Radushkevich equation, the limiting volume of the adsorbed space, which equals the accessible micropore volume, was determined, and found to correlate with the value from carbon dioxide adsorption.

Item Type:Article
Source:Copyright of this article belongs to Canadian Society for Chemical Engineering.
Keywords:Liquid Phase Adsorption; Flavour Esters; Activated Carbon; Isotherms
ID Code:3026
Deposited On:09 Oct 2010 10:19
Last Modified:17 May 2011 07:05

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