Dehydrogenation of Propane with СО2 on Supported CrOx/SiO2 Catalysts
- Authors: Tedeeva M.A.1, Kustov A.L.1,2, Pribytkov P.V.1, Leonov A.V.1, Dunaev S.F.1
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Affiliations:
- Department of Chemistry, Moscow State University
- Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences
- Issue: Vol 92, No 12 (2018)
- Pages: 2403-2407
- Section: Physical Chemistry of Hybrid Nanomaterials and Multicomponent Systems
- URL: https://journals.rcsi.science/0036-0244/article/view/170240
- DOI: https://doi.org/10.1134/S0036024418120403
- ID: 170240
Cite item
Abstract
A systematic analysis was performed of the physicochemical properties of amorphous silicas (Acros, Degussa, KSKG) and CrOx/SiO2 catalysts prepared from them with 2, 3, 5, 7, and 10 wt % chromium. The supports and catalysts were characterized by BET, XRD, and UV–Vis diffuse reflectance spectroscopy. In the oxidative dehydrogenation of propane with carbon dioxide, the highest propylene selectivity (95%) was observed for the 5% CrOx/SiO2 (Degussa) sample, and the highest propane conversion (53%) was reported on the 5% CrOx/SiO2 (Acros) catalyst. The structure of chromium oxide particles on the support surface was studied by UV–Vis spectroscopy. The catalytic properties were correlated with the state of chromium.
About the authors
M. A. Tedeeva
Department of Chemistry, Moscow State University
Email: pribytkov@general.chem.msu.ru
Russian Federation, Moscow, 119991
A. L. Kustov
Department of Chemistry, Moscow State University; Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences
Email: pribytkov@general.chem.msu.ru
Russian Federation, Moscow, 119991; Moscow, 119991
P. V. Pribytkov
Department of Chemistry, Moscow State University
Author for correspondence.
Email: pribytkov@general.chem.msu.ru
Russian Federation, Moscow, 119991
A. V. Leonov
Department of Chemistry, Moscow State University
Email: pribytkov@general.chem.msu.ru
Russian Federation, Moscow, 119991
S. F. Dunaev
Department of Chemistry, Moscow State University
Email: pribytkov@general.chem.msu.ru
Russian Federation, Moscow, 119991