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Conception et mise au point d’un réacteur plasma innovant pour le traitement de composés organiques volatils en milieu industriel

Abstract : Volatile organic compounds (VOC) present in the atmosphere may have a strong odour impact and, being so, must be treated. Some long-established treatment techniques may be able to recover or destruct these compounds. However, these techniques are not suitable for high flow rates and/or low concentrations, typical conditions found in certain VOC-emitting industrial processes. A promising alternative is the use of non-thermal plasmas. This kind of plasma, obtained through non-equilibrium electric discharges, produce reactive species that prompt the destruction of volatile organic compounds. This thesis aims to conceive, build and test a reactor based on non-thermal plasmas for the abatement of volatile organic compounds at pilot scale, in order to demonstrate the feasability of using such a process to treat odourous compounds present in an industrial effluent. The obtained results show that, combined with a catalyst, the use of non-thermal plasmas for odour control in industrial scale has a real potential. In parallel, this thesis seeks a better understanding of the role played by mass transfer in a non-thermal plasma reactor through the use of an analytical model and numerical simulations. We show that mass transfer may become the limiting process of the treatment, and therefore requires special care throughout the design of a non-thermal plasma reactor.
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Pedro Henrique Affonso Nobrega. Conception et mise au point d’un réacteur plasma innovant pour le traitement de composés organiques volatils en milieu industriel. Génie des procédés. PSL Research University, 2018. Français. ⟨NNT : 2018PSLEM042⟩. ⟨tel-02413189⟩

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