Thermodynamics and kinetics of fuel oxygenate adsorption into granular activated carbon

Rafael Gonzalez-Olmos, Miguel Iglesias

Producció científica: Article en revista indexadaArticleAvaluat per experts

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Resum

The removal of methyl tert-butyl ether (MTBE) and ethyl tert-butyl ether (ETBE) from water by granular activated carbon (GAC) was studied at different temperatures. Freundlich and Langmuir isotherm coefficients were developed based on linearized forms of the models. The results show the dependence of the isotherms with temperature. Data obtained from the kinetic studies were treated according to various kinetic models with the second-order model being the most suitable overall. Thermodynamic parameters (ΔG, ΔH, and ΔS) for the adsorption process were calculated, and the results suggest that the nature of adsorption is endothermic, spontaneous, and favorable. According to the values of activation energy and enthalpy, the adsorption of both compounds in the studied GAC is in the range of physisorption.

Idioma originalAnglès
Pàgines (de-a)2556-2561
Nombre de pàgines6
RevistaJournal of Chemical and Engineering Data
Volum53
Número11
DOIs
Estat de la publicacióPublicada - 13 de nov. 2008
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