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Étude thermodynamique d'un procédé de captage du CO2 par formation d'hydrates appliqué aux fumées de postcombustion

Imen Ben Attouche Sfaxi 1
1 CEP/Fontainebleau
CEP - Centre Énergétique et Procédés
Abstract : Hydrates selectivity towards carbon dioxide is offering a promising route for carbon dioxide removal from flue gases. Hydrate-based CO2 capture process could substitute amine facilities widely implemented in gas treatment plants but suffering from oxidative degradation problems and high energy demand. In the framework of this thesis, we focus on phase equilibria that are involved in such process. Experimental dissociation conditions for clathrate hydrates of carbon dioxide and nitrogen, in the presence of some promoting molecules (Tetrahydrofuran, Tetrabutyl ammionium bromide and Tetrabutyl ammionium Fluoride ) are reported in the experimental section of this work. The data generated in this work along with literature data are compared to the model predictions. The developed model is based on the Cubic Plus Association (CPA) equation of state (EoS) for fluid phases combined to the van der Waals and Platteeuw's theory for the hydrate phase.
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Submitted on : Thursday, January 5, 2012 - 11:43:32 AM
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  • HAL Id : pastel-00656829, version 1

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Imen Ben Attouche Sfaxi. Étude thermodynamique d'un procédé de captage du CO2 par formation d'hydrates appliqué aux fumées de postcombustion. Génie des procédés. École Nationale Supérieure des Mines de Paris, 2011. Français. ⟨NNT : 2011ENMP0038⟩. ⟨pastel-00656829⟩

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