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Particules imprégnées : mise en oeuvre et application aux procédés de séparation de mélanges gazeux en lit fixe

Abstract : This work is about an original object: porous particles impregnated with a non volatile liquid. The aim of this work is to show the potential of such a system for applications in the area of gas treatment on fixed beds. The first part of our work is dedicated to the impregnation process and the characterization of such particles by an innovative technique based on powder rheology. This technique is very sensitive to changes on the surface of the particles and helps to understand the impregnation process. Three stages of impregnation are proposed: adsorption of the polymer, filling of the pores and coating of the outer surface. The second part is focused on a thermodynamic study of the properties of some gas-absorbent systems in order to identify the systems for which the retention capacity would be important. The absorbents are compared to activated carbon. A system N2-CO2 with a polymer amine was selected to impregnate the particles and carry out the experimental tests. A model of the process is presented in order to simulate and anticipate the performance of the particles for different operating conditions. The goal of this simulation is to identify the optimal conditions for the absorption-desorption cycles in which the values of recuperation and concentration of CO2 would be maximal
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https://hal.univ-lorraine.fr/tel-01748718
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Luis Fernando Madariaga Calles. Particules imprégnées : mise en oeuvre et application aux procédés de séparation de mélanges gazeux en lit fixe. Autre. Institut National Polytechnique de Lorraine, 2009. Français. ⟨NNT : 2009INPL036N⟩. ⟨tel-01748718⟩

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