Model Discrimination for Hydrogen Peroxide Consumption towards γ-Alumina in Homogeneous Liquid and Heterogeneous Liquid-Liquid Systems
| Autor: | Sébastien Leveneur, Tapio Salmi, Valeria Casson Moreno, Wander Y. Pérez-Sena, Daniele Di menno Di Bucchianico |
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| Přispěvatelé: | Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Laboratoire de Sécurité des Procédés Chimiques (LSPC), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA), Di Menno Di Bucchianico D., Perez-Sena W.Y., Casson Moreno V., Salmi T., Leveneur S. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Reaction mechanism
Thermal runaway Kinetics Bioengineering TP1-1185 010402 general chemistry Bayesian statistics 01 natural sciences chemistry.chemical_compound [CHIM.GENI]Chemical Sciences/Chemical engineering Oxidizing agent Chemical Engineering (miscellaneous) Liquid liquid Hydrogen peroxide QD1-999 model discrimination 010405 organic chemistry Chemical technology Process Chemistry and Technology Bayesian statistic kinetic modeling 0104 chemical sciences Chemistry Vegetable oil Chemical engineering chemistry Homogeneous |
| Zdroj: | Processes Processes, MDPI, 2021, 9 (8), pp.1476. ⟨10.3390/pr9081476⟩ Volume 9 Issue 8 Processes, Vol 9, Iss 1476, p 1476 (2021) |
| ISSN: | 2227-9717 |
| DOI: | 10.3390/pr9081476⟩ |
| Popis: | International audience; The use of hydrogen peroxide as an oxidizing agent becomes increasingly important in chemistry. The example of vegetable oil epoxidation is an excellent illustration of the potential of such an agent. This reaction is traditionally performed by Prileschajew oxidation, i.e., by the in situ production of percarboxylic acids. Drawbacks of this approach are side reactions of ring-opening and thermal runaway reactions due to percarboxylic acid instability. One way to overcome this issue is the direct epoxidation by hydrogen peroxide by using γ-alumina. However, the reaction mechanism is not elucidated: does hydrogen peroxide decompose with alumina or oxidize the hydroxyl groups at the surface? The kinetics of hydrogen peroxide consumption with alumina in homogeneous liquid and heterogeneous liquid-liquid systems was investigated to reply to this question. Bayesian inference was used to determine the most probable models. The results obtained led us to conclude that the oxidation mechanism is the most credible for the heterogeneous liquid-liquid system. |
| Databáze: | OpenAIRE |
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