Rhodium-Based Catalysts: An Impact of the Support Nature on the Catalytic Cyclohexane Ring Opening

Kartavova, K.E.; Mashkin, M.Y.; Kostin, M.Y.; Finashina, E.D.; Kalmykov, K.B.; Kapustin, G.I.; Pribytkov, P.V.; Tkachenko, O.P.; Mishin, I.V.; Kustov, L.M.; Kustov, A.L.

Авторы: Kartavova Kristina E., Mashkin Mikhail Yu, Kostin Mikhail Yu, Finashina Elena D., Kalmykov Konstantin B., Kapustin Gennady I., Pribytkov Petr V., Tkachenko Olga P., Mishin Igor V., Kustov Leonid M., Kustov Alexander L.
Журнал: Nanomaterials
Том: 13
Номер: 5
Год издания: 2023
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Номер статьи: 936
DOI: 10.3390/nano13050936
Аннотация: Because of the growing demand for high-quality fuels, the light cycle oil fraction improvement including cetane number improvement is important. The main way to reach this improvement is the ring opening of cyclic hydrocarbons, and a highly effective catalyst should be found. Cyclohexane ring openings are a possible option to investigate the catalyst activity. In this work, we investigated rhodium-loaded catalysts prepared using the commercially available industrial supports: single-component ones, SiO2 and Al2O3; and mixed oxides CaO + MgO + Al2O3 and Na2O + SiO2 + Al2O3. The catalysts were prepared by incipient wetness impregnation and investigated by N2 low-temperature adsorption-desorption, XRD, XPS, DRS UV-Vis and DRIFT spectroscopy, SEM, and TEM with EDX. The catalytic tests were performed in cyclohexane ring opening in the range of 275-325 oC. The best result was demonstrated by the sample 1Rh/CaMgAlO: the selectivity to n-hexane was about 75% while the cyclohexane conversion was about 25% at 275 oC. The space-time yield was up to 12 mmoln-hexane/gcat/h.
Добавил в систему: Машкин Михаил Юрьевич

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Rhodium-Based Catalysts: An Impact of the Support Nature on the Catalytic Cyclohexane Ring Openingстатья

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