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Transformation de matériaux énergétiques par oxydation hydrothermale : Etude cinétique globale et simulation du procédé en régime permanent sur des composés modèles

Abstract : Hydrothermal oxidation processes in supercritical fluid provide an innovating alternative for the management of energetic materials at the end of their "lifetime" and of the production's wastes. In order to evaluate and promote the development of this technology, two hydrothermal oxidation pilots were built. The first set up in batch mode; the reactor is protected by a lined titanium. It is dedicated to feasibility studies on real products such as propellants and the various elements of their composition. Concerning the second one, it operates in a continuous mode based on a new concept of reactor : a multi injection of oxygen along the hydrothermal oxidation reactor. This facility is devoted to the determination of data necessary to scale industrial reactors. Model molecules such as acetic acid, methanol and phenol were studied. A calculation method was developed to obtain reaction kinetics parameters, in particular the order compared to oxygen concentration. On the basis of theses kinetics data the software "Prosim Plus" was validated to simulate the hydrothermal oxidation process.
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Submitted on : Thursday, September 22, 2005 - 6:48:27 PM
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David Mateos. Transformation de matériaux énergétiques par oxydation hydrothermale : Etude cinétique globale et simulation du procédé en régime permanent sur des composés modèles. Matériaux. Université Sciences et Technologies - Bordeaux I, 2003. Français. ⟨tel-00010254⟩

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