Selective gas-phase oxidation of ethanol by molecular oxygen in the oxide and gold catalysts
Abstract
Bio alcohols, especially bio-ethanol, due to the rapid growth of its production may be a promising renewable chemical feedstock for the production of many useful products of organic synthesis. In order to develop new «green» technologies of ethanol in the valueadded products the authors conducted a systematic study of the selective conversion of ethanol oxidation in molecular oxygen in the gas-phase flow regime on these catalysts, as V2O5–TiO2, mixed oxides of V–Mo–Te, V–Mo–Nb and V–Mo–Te–Nb, as well as gold, deposited on oxide supports. The catalytic activity was determined in a temperature-programmed reaction at atmospheric pressure in the gas mixture composition (mol%): EtOH – 2, O2 – 18, He – 80, with a mixture of volume flow rate 3600 h–1, a catalyst fraction 0,25–0,5 mm. In some cases, there is the possibility of efficient conversion of ethanol into the products of partial oxidation and related transformations – acetaldehyde (yield 90–99 %), acetic acid (yield 92–98 %, the performance of > 3 g g-cat.–1 h–1), a mixture of acetic acid and ethyl acetate (ratio ~ 1 : 1, the total yield of > 90 %).
About the Authors
K. Yu. Koltunov
Институт катализа СО РАН, Новосибирск
Новосибирский государственный университет, Новосибирск
Russian Federation
Russian Federation
V. I. Sobolev
Институт катализа СО РАН, Новосибирск
Russian Federation
Russian Federation
References
1. Renewable Fuels Assoc. http://www.ethanolrfa.org/pages/ethanol-facts-trade Cheng J.J., Timilsina G.R. // Renewable Energy. 2011. V. 36. P. 3541—3549.
2. Jørgensen B., Kristensen S.B., Kunov-Kruse A.J., Fehrmann R., Christensen C.H., Riisager A. // Top Catal. 2009. V. 52. P. 253—257.
3. Li X., Iglesia E. // Chem. Eur. J. 2007. V. 13. P. 9324— 9330.
4. Centi G., Cavani F., Trifiro F. Selective Oxidation by Heterogeneous Catalysis, Kluwer Academic/Plenum Publishers, New York, 2001.
5. Jørgensen B., Christiansen S.E., Thomsen M.L.D., Christensen C.H. // J. Catal. 2007. V. 251. P. 332—337.
6. Gaspar A.B., Esteves A.M.L., Mendes F.M.T., Barbosa F.G., L.G. Appel // Appl. Catal. A: Gen. 2009. V. 363.
7. P. 109—114.
8. Popova G.Ya., Andrushkevich T.V., Semionova E.V., Chesalov Yu.A., Dovlitova L.S., Rogov V.A., Parmon V.N. //J. Mol. Catal. A. 2008. V. 283. P. 146—152.
9. Kardash T.Yu., Plyasova L.M., Bondareva V.M., Andrushkevich T.V., Dovlitova L.S., Ischenko A.I., Nizovskii A.I., Kalinkin A.V. // Appl. Catal. A: Gen. 2010. V. 375. P. 26— 36.
10. Popova G.Ya., Andrushkevich T.V., Dovlitova L.S., Aleshina G.A., Chesalov Yu.A., Ishenko A.V., Ishenko E.V.,
11. Plyasova L.M., Malakhov V.V., Khramov M.I. // Appl. Catal. A: Gen. 2009. V. 353. P. 249—257.
12. Ищенко Е.В., Андрушкевич Т.В., Попова Г.Я., Чесалов Ю.А., Плясова Л.М., Ищенко А.В., Кардаш Т.Ю.,
13. Довлитова Л.С. // Катализ в промышленности. 2010. Т. 4. С. 7—13.
14. Sobolev V.I., Koltunov K.Yu. // ChemCatChem. 2011. V. 3. P. 1143—1145.
15. Simakova O.A., Sobolev V.I., Koltunov K.Yu., Campo B., Leino A.-R., Kordás K., Murzin D.Yu. // ChemCatChem.
16. V. 2. P. 1535—1538.
17. Sobolev V.I., Simakova O.A., Koltunov K.Yu. // ChemCat-Chem. 2011. V. 3. P. 1422—1425.
18. Pina C.D., Falletta E., Prati L., Rossi M. // Chem. Soc. Rev. 2008. V. 37. P. 2077—2095.
19. Corma A., Garcia H. // Chem. Soc. Rev. 2008. V. 37. P. 2096—2126.
20. Mallat T., Baiker A. // Chem. Rev. 2004. V. 104. P. 3037— 3058.
Review
For citations:
Koltunov K.Yu., Sobolev V.I. Selective gas-phase oxidation of ethanol by molecular oxygen in the oxide and gold catalysts. Kataliz v promyshlennosti. 2012;(3):20-25. (In Russ.)
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