Effect of Chromium Precursor on the Catalytic Behavior of Chromium Oxide Catalysts in Oxidative Propane and Isobutane Dehydrogenation with Carbon Dioxide

Effect of Chromium Precursor on the Catalytic Behavior of Chromium Oxide Catalysts in Oxidative Propane and Isobutane Dehydrogenation with Carbon Dioxide Full article

Journal

Catalysts
ISSN: 2073-4344

Output data

Year: 2025, Volume: 15, Number: 3, Article number : 226, Pages count : DOI: 10.3390/catal15030226

Authors

Tedeeva Marina A. ¹ , Mashkin Mikhail Yu. ¹ , Baybursky Vladimir L. ^1,2 , Pribytkov Petr V. ^1,2 , Murashova Elena V. ¹ , Kalmykov Konstantin B. ¹ , Shesterkina Anastasiya A. ¹ , Kapustin Gennady I. ² , Tkachenko Olga P. ² , Dunaev Sergey F. ¹ , Kustov Leonid M. ^1,2 , Kustov Alexander L. ¹

Affiliations

1	Department of Chemistry, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia
2	N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia

A series of 5 wt.% Cr/SiO2 catalysts were prepared through incipient wet impregnation using different chromium salts as a source of Cr (chromium (III) sulfate, acetylacetonate, nitrate, ammonium dichromate). The obtained catalysts were characterized by SEM-EDX, TEM, DRIFT-CD3CN spectroscopy, UV-VIS diffuse reflectance spectroscopy, and the N2 low-temperature adsorption–desorption technique. The catalysts were tested in propane, and isobutane dehydrogenation assisted with CO2 at 600–750 °C. The highest activity in propane dehydrogenation was observed for the catalyst obtained from chromium acetylacetonate, the yield of propylene was 32% at 750 °C, and in the isobutane dehydrogenation reaction, the catalyst obtained from chromium sulfate was the best one; the yield of isobutene was ~30% at 600 °C. The obtained results show that the type of chromium precursor has a significant effect on the efficiency of the catalyst in the propane and isobutane dehydrogenation with CO2.

Tedeeva M.A. , Mashkin M.Y. , Baybursky V.L. , Pribytkov P.V. , Murashova E.V. , Kalmykov K.B. , Shesterkina A.A. , Kapustin G.I. , Tkachenko O.P. , Dunaev S.F. , Kustov L.M. , Kustov A.L.
Effect of Chromium Precursor on the Catalytic Behavior of Chromium Oxide Catalysts in Oxidative Propane and Isobutane Dehydrogenation with Carbon Dioxide
Catalysts. 2025. V.15. N3. 226 . DOI: 10.3390/catal15030226 WOS OpenAlex

Web of science:	WOS:001452671800001
OpenAlex:	W4407992571

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