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Contribution à l'industrialisation d'un procédé de gazéification

Abstract : Diversification of energy sources based on renewable energies must contribute to reduce the share of fossil fuels in power generation, in agreement with the European directives which impose to France to generate 21% of its energy from renewable energies before 2010.The present work reported in this manuscript focus on the industrialization of a wood gasification process for the production of heat and electricity. Experiments of wood fast pyrolysis were performed under various experimental conditions (flux density between 0.9 and 6.3 MW/m2, moisture between 0 and 60%) for understanding and analysis of fundamental phenomena related to the gasification of wood. The various products (char, condensible vapours and gases) are recovered and analyzed. The results help to determine the yields of each of the products for various experimental conditions.The numerical modeling of wood pyrolysis phenomena has been achieved on the basis of kinetic data found through literature review and then compared to the experimental results. Even if there is no perfect agreement, orders of magnitude are respected. These models are used as a basis to develop a gasification reactor model for Güssing DFB reactor, including the hydrodynamics description, wood pyrolysis, char gasification, vapours and gases reactions. This model is used to determine the efficiency of the reactor and its various operating parameters
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Submitted on : Friday, March 30, 2018 - 9:53:00 AM
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  • HAL Id : tel-01754557, version 1



Jocelyn Le Dirach. Contribution à l'industrialisation d'un procédé de gazéification. Autre. Institut National Polytechnique de Lorraine, 2008. Français. ⟨NNT : 2008INPL024N⟩. ⟨tel-01754557⟩



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