Étude de la régénération de la zéolithe Wessalith® DAY F-20 par le dioxide de carbone supercritique

Abstract : This study concerns a process for the removal of Volatile Organic Compounds (VOC) from waste gases. The selected technique consists in adsorbing the VOC on a zeolite bed then to regenerate the adsorbent by the supercritical carbon dioxide. First, measurements of single component adsorption isotherms on Wessalith, DAY zeolite F20 are presented, at various temperatures, for three VOCs: m-xylene, toluene and n-butyl acetate. Such experiments allowed us to obtain information about the effect of the temperature on the adsorption. The adsorption experimental data were correlated with various models: Langmuir, Freundlich, Toth and Dubinin. After this, the m-xylene desorption by supercritical carbon dioxide allowed us to put in evidence the influence of three key parameters on desorption: the flow rate, the pressure and the temperature.
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Theses
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http://docnum.univ-lorraine.fr/prive/INPL_T_2003_EL_BRIHI_T.pdf
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https://hal.univ-lorraine.fr/tel-01750144
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Submitted on : Thursday, March 29, 2018 - 12:39:05 PM
Last modification on : Monday, April 16, 2018 - 10:41:22 AM

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Taoufik El Brihi. Étude de la régénération de la zéolithe Wessalith® DAY F-20 par le dioxide de carbone supercritique. Alimentation et Nutrition. Institut National Polytechnique de Lorraine, 2003. Français. ⟨NNT : 2003INPL078N⟩. ⟨tel-01750144⟩

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