Abstract:
The direct oxidation of toluene to cresols with nitrous oxide as the oxidant was carried out over a ZSM-5 zeolite catalyst under gaseous and supercritical conditions (395 °C and 0.5, 7, 12 MPa; 420 °C and 15 MPa). The supercritical oxidation is characterized by a significantly greater productivity as compared to the gas-phase process. Successful in situ regeneration of the deactivated catalyst during the transition from the gas-phase to the supercritical process has been demonstrated.
Keywords:
toluene, oxidation, nitrous oxide, supercritical conditions, ZSM-5 zeolite, in situ regeneration of catalyst, cresols.
Citation:
V. I. Bogdan, V. L. Zholobenko, T. V. Bogdan, A. L. Kustov, A. E. Koklin, I. I. Mishanin, N. V. Mashchenko, S. E. Bogorodskiy, “Oxidation of toluene with N2O on ZSM-5 zeolite under supercritical conditions”, Mendeleev Commun., 35:3 (2025), 344–346