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

被引：1

作者：

Bogdan, V. I. ^{[1
]}

Zholobenko, V. L. ^{[2
,3
]}

Bogdan, T. V. ^{[1
,2
]}

Kustov, A. L. ^{[1
,2
]}

Koklin, A. E. ^{[1
]}

Mishanin, I. I. ^{[1
,2
]}

Mashchenko, N. V. ^{[1
]}

Bogorodskiy, S. E. ^{[1
]}

机构：

[1] Russian Acad Sci, ND Zelinsky Inst Organ Chem, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[3] Keele Univ, Keele ST5 5BG, Staffs, England

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2024年 / 213卷

关键词：

Benzene; Oxidation; Nitrogen oxide; ZSM-5; Supercritical conditions; SELECTIVE OXIDATION; CATALYST; PHENOL; OXIDE;

D O I：

10.1016/j.supflu.2024.106355

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 degrees 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.

引用

页数：8

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