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Etude de la pyrolyse de composés lignocellulosiques et modélisation de ce processus

Abstract : A study of pyrolysis of lignocellulosic materials is of crucial interest in a better understanding of the thermochemical conversion process of biomass. Experimental study of the pyrolysis of cellulose reveals that the yield of the carbon solid residue depends as well as operating conditions than the geometric characteristics of the sample. These results have been widened to natural materials, such as lignin and hemicellulose. This study has been completed by identifying the different thermal phenomenas occurring during this process by differential thermal analysis of the main components of biomass. All these results allow us to carry out a mathematical model of the process predicting the temperature profile and the conversion of the pyrolysis of a cylindrical wood sample. Finally, a valorisation's example of the pyrolysed material, in the form of the production of activated carbons is presented.
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Submitted on : Thursday, March 29, 2018 - 1:58:43 PM
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Alexandre Preau. Etude de la pyrolyse de composés lignocellulosiques et modélisation de ce processus. Génie des procédés. Institut National Polytechnique de Lorraine, 2007. Français. ⟨NNT : 2007INPL011N⟩. ⟨tel-01752810⟩



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