Oxidation of benzene with N2O on ZSM-5 zeolite: A comparison of gas-phase and supercritical conditions

Bogdan, V.I.; Zholobenko, V.L.; Bogdan, T.V.; Kustov, A.L.; Koklin, A.E.; Mishanin, I.I.; Mashchenko, N.V.; Bogorodskiy, S.E.

Abstract

The catalytic oxidation of benzene with nitrous oxide (N2O) over ZSM-5 zeolite has been carried out in a continuous-flow reactor under supercritical conditions and compared with the results of the gas-phase reaction. Aromatic substrates and nitrous oxide under the conditions of supercritical experiments (300–435 °C, 6.0–18.0 MPa) are both reagents and the supercritical medium. It has been established that the productivity of the supercritical oxidation of benzene into phenol significantly exceeds the productivity of the gas-phase process owing to the limited reversible deactivation of the catalyst under supercritical conditions and the in situ removal of the coke precursors by the dense reaction medium. In addition, it has been demonstrated that a successful in situ regeneration of the deactivated oxidation catalyst can be carried out during the transition from gas-phase reaction conditions to supercritical conditions in one experiment.

Citation

Bogdan, V., Zholobenko, V., Bogdan, T., Kustov, A., Koklin, A., Mishanin, I., Mashchenko, N., & Bogorodskiy, S. (2024). Oxidation of benzene with N2O on ZSM-5 zeolite: A comparison of gas-phase and supercritical conditions. Journal of Supercritical Fluids, 213, Article 106355. https://doi.org/10.1016/j.supflu.2024.106355

• Journal Article Type: Article
• Acceptance Date: Jul 16, 2024
• Online Publication Date: Jul 22, 2024
• Publication Date: 2024-11
• Deposit Date: Aug 23, 2024
• Journal: The Journal of Supercritical Fluids
• Print ISSN: 0896-8446
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 213
• Article Number: 106355
• DOI: https://doi.org/10.1016/j.supflu.2024.106355
• Keywords: Benzene; Oxidation; Nitrogen oxide; ZSM-5; Supercritical conditions
• Public URL: https://keele-repository.worktribe.com/output/887846
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0896844624001906?via%3Dihub
• Additional Information: This article is maintained by: Elsevier; Article Title: Oxidation of benzene with N2O on ZSM-5 zeolite: A comparison of gas-phase and supercritical conditions; Journal Title: The Journal of Supercritical Fluids; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.supflu.2024.106355; Content Type: article; Copyright: © 2024 Published by Elsevier B.V.