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Conversion catalytique du méthane en gaz de synthèse par oxydation partielle :

Abstract : Methane is the main component of natural gas. It can be transformed into synthesis gas (H2+CO) by the partial oxidation reaction (POM). The main goal of this work is to understand the kinetic mechanism of the POM reaction in the presence of a catalyst. The reaction is carried out in two different kinds of reactor: a perfectly jet-stirred reactor where both gas phase and surface reactions can be studied simultaneously and a fixed bed reactor. In a first part, lanthanum oxide La2O3 is used as a catalyst. From comparisons between experimental and simulated data (Chemkin®/Chemkin Surface®), a hetero-homogeneous mechanism having the ability to explain experimental observations is proposed. In a second part, the efforts were focused on two nickel based catalysts (Ni/La2O3 and Ni/CeO2) which exhibit a good and stable activity. The discussion on the catalytic performances was done on the basis of experimental observations and catalyst characterizations
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Submitted on : Thursday, March 29, 2018 - 1:49:15 PM
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  • HAL Id : tel-01752481, version 1



Matthieu Fleys. Conversion catalytique du méthane en gaz de synthèse par oxydation partielle :. Autre. Institut National Polytechnique de Lorraine, 2006. Français. ⟨NNT : 2006INPL051N⟩. ⟨tel-01752481⟩



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