Unexpected role of NOx during catalytic ozone abatement at low temperature
| Autor: | Alexandre Guerin, Valérie Meille, Yousef Swesi, Catherine Batiot Dupeyrat, Houcine Touati, Régis Philippe, Jean-Marc Clacens |
|---|---|
| Přispěvatelé: | Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Génie des Procédés Catalytiques (LGPC), École Supérieure Chimie Physique Électronique de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
Ozone NOx poisoning Air treatment 010501 environmental sciences 01 natural sciences Catalysis lcsh:Chemistry chemistry.chemical_compound heterocyclic compounds Catalytic ozone Monolith Nitrogen oxides ComputingMilieux_MISCELLANEOUS NOx 0105 earth and related environmental sciences geography geography.geographical_feature_category 010405 organic chemistry Total recovery Chemistry Process Chemistry and Technology organic chemicals [CHIM.CATA]Chemical Sciences/Catalysis General Chemistry 0104 chemical sciences Chemical engineering Ozone conversion lcsh:QD1-999 13. Climate action cardiovascular system PdO catalyst Adsorption Catalytic decomposition |
| Zdroj: | Catalysis Communications, Vol 148, Iss, Pp 106163-(2021) Catalysis Communications Catalysis Communications, Elsevier, 2021, 148, pp.106163. ⟨10.1016/j.catcom.2020.106163⟩ |
| ISSN: | 1873-3905 1566-7367 |
| Popis: | The catalytic decomposition of ozone was carried out at 40 °C with a Pd/Al2O3 catalyst, in the presence or absence of nitrogen oxides traces. NOx were produced during the generation of ozone from air. Two set-ups were used to examine the possible effects of NOx poisoning, one fixed bed with a powder catalyst, and another using a monolith coated with the same catalyst. NOx were shown to significantly poison the catalyst, resulting in a decrease of ozone conversion over time on stream. NOx-free ozone feed can lead to the total recovery of the initial catalyst properties indicating a reversible poisoning. |
| Databáze: | OpenAIRE |
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