Synergism between non-thermal plasma and photocatalysis Implicationsin the post discharge of ozone at a pilot scale in a catalytic fixed-bed reactor
| Autor: | Sivachandiran Loganathan, Sami Rtimi, Wala Abou Saoud, Abdelkrim Bouzaza, Aymen Amine Assadi, Monia Guiza, Abdelmottaleb Ouederni, Wael Aboussaoud, Dominique Wolbert |
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| Přispěvatelé: | Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Ozone
vocs removal abatement oxidation air mass-transfer 02 engineering and technology 010501 environmental sciences Nonthermal plasma dielectric barrier discharge catalytic packed bed 01 natural sciences Catalysis Mordenite isovaleraldehyde Ozone valorization chemistry.chemical_compound [CHIM]Chemical Sciences Photocatalytic/non-thermal plasma Butyraldehyde 0105 earth and related environmental sciences General Environmental Science Zeolites ZSM-5 Chemistry Process Chemistry and Technology 021001 nanoscience & nanotechnology volatile organic-compounds Decomposition synergetic effect butyraldehyde Chemical engineering 13. Climate action adsorption Photocatalysis Degradation (geology) air treatment 0210 nano-technology |
| Zdroj: | Applied Catalysis B: Environmental Applied Catalysis B: Environmental, 2019, 241, pp.227-235. ⟨10.1016/j.apcatb.2018.09.029⟩ Applied Catalysis B: Environmental, Elsevier, 2019, 241, pp.227-235. ⟨10.1016/j.apcatb.2018.09.029⟩ |
| ISSN: | 0926-3373 |
| DOI: | 10.1016/j.apcatb.2018.09.029⟩ |
| Popis: | International audience; This study focuses on Butyraldehyde (C4H8O) degradation using catalytic ozonation oriented to the optimization of non-thermal plasma/photocatalytic coupled processes. After the first oxidation by non-thermal plasma coupled photocatalytic processes, a second oxidative step leading to the decomposition of the residual Butyraldehyde by Ozone is catalyzed by Mordenite, ZSM-5 and γ-alumina. The Butyraldehyde degradation in the presence of Ozone under operational parameters such as plasma energy, Butyraldehyde inlet concentration, relative humidity and the height of the catalytic bed are reported in detail. The optimum operating conditions found were Qair = 1 m3 h-1, [C4H8O] = 100 mg m-3, SIEplasma = 18 JL-1, for Butyraldehyde degradation mediated by ZSM-5. The formation of intermediate by-products was monitored during the degradation of Butyraldehyde in the presence of Ozone and ZSM-5 catalyst to suggest a degradation pathway. The coupling of catalytic ozonation by non-thermal plasma/photocatalysis lead to the total decomposition of Ozone when catalyzed by ZSM-5and presents a positive effect on the mineralization capacity. The pollutants degradation intermediates were identified by GC-MS and the oxidative states on the catalytic bed were characterized by XPS. © 2018 Elsevier B.V. |
| Databáze: | OpenAIRE |
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