Thermal desorption of toluene from Vanadium-containing catalysts coated onto various carriers

  • Z. Zheksenbaeva D. Sokolsky Institute of Organic Catalysis and Electrochemistry, Almaty
  • A. Umbetkaliev D. Sokolsky Institute of Organic Catalysis and Electrochemistry, Almaty
  • G. Asilova D. Sokolsky Institute of Organic Catalysis and Electrochemistry, Almaty
DOI: https://doi.org/10.15328/chemb_2012_4169-174
Keywords: thermal desorption, toluene, vanadium catalysts, carriers, titanium dioxide

Abstract

The method temperature-programmed desorption has been studied the state of toluene on the surface-modified vanadium catalysts on different carriers. Among the investigated carriers the most active in the reaction of partial oxidation of toluene is anatase structural titanium dioxide. For the partial oxidation of toluene on modified vanadium-containing catalysts deposited on TiO2 was tested. It was found that on the catalyst 20%V2O5-5%MoO3-2%Sb2O3/TiO2 at a temperature of 673K, volume rate of 15 thousand hours-1 oxidation of toluene is 80% c yield of benzoic acid with a selectivity of  70% of 87.5%.

References

1. Freitag C., Besselmann S., Löffler E., Grünert W., Rosowski F., Muhler M. On the role of monomeric vanadyl species in toluene oxidation over V2O5/TiO2 catalyst: a kinetic study using the TAP reactor //Catal. Today. -2004. -Vol.91-92.-P.143-147.

2. Besselmann S., Loffler E., Muhler M. On the role of monomeric vanadyl species in toluene adsorption and oxidation on V2O5/TiO2 catalysts: a Raman and in situ DRIFTS study //J. of Mol. Catal. A: Chemical. -2000.-Vol.162. -P.401-411.

3. Умбеткалиев А.К., Досумов К., Асилова Г.М. Парциальное окисление толуола на модифицированном ванадиевом катализаторе, нанесенном на различные носители // Известия НАН РК, Серия химическая.- 2006. -№ 1. -С.45-47.

4. Попова Н.М., Бабенкова Л.В., Савельева Г.А., Кульевская Ю.Г.,Солнышко В.К. Адсорбция и взаимодействие простейших газов с металлами VIII группы. //Алма-Ата. -1985. -85с.

5. Жексенбаева З.Т., Умбеткалиев А.К., Асилова Г.М., Шайзадаулы Е. Температурно-программированная десорбция кислорода с модифицированных ванадиевых катализаторов // Известия НАН РК, Серия химическая. -2012. -№ 2. -С.3-9.

6. Grzybowska B., Haber J. Vanadia catalysts for processes of oxidation aromatic Hydrocarbons. Sci. pub.: Krakow. 1984. – 183р.

7. Воробьев В.Н., Мелкумян Ф.Ш., Нурматов Х.А., Разиков К.Х. Кривые термопрограммированного восстановления и окисления как метод оценки реакционной способности центров в каиализаторах окисления //Носители и катализаторы для каталитических генераторов тепла //Сб. научн. Тр.Новосибирск.-1985. -С.100-107.

8. Tarama K., Yoshida S., Ishida S., Karioka H. Bull. Chem. Soc. Jap, 1968.- Vol.41.- P.2840-2851.

9. Dziembaj R., Giembroniewica G. Lattice oxygen removal from nearly stoichiometric V2O5 //

10. React. Kinet. Catal. Lett. -1978. -Vol.9, №4. -P.388-393.

Published
2012-12-04
How to Cite
Zheksenbaeva, Z., Umbetkaliev, A., & Asilova, G. (2012). Thermal desorption of toluene from Vanadium-containing catalysts coated onto various carriers. Chemical Bulletin of Kazakh National University, 68(4), 169-174. https://doi.org/https://doi.org/10.15328/chemb_2012_4169-174
Issue
Vol 68 No 4 (2012): Chemical Bulletin of Kazakh National University
Section
Other Papers
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