Dehydrogenation of Isobutane to Isobutene over V2O5/gamma-Al2O3 Catalysts: Effects of the Extent of Catalyst Reduction on Catalytic Performance

• Autorzy: Ma H. , Fu Y.-H. , Li Y. , Wang Z. -L. , Zhu W. -C. , Wang G.-J.
• Języki publikacji: EN

Abstrakty

EN

V2O5/_-Al2O3 catalysts for the dehydrogenation of isobutane to isobutene were prepared by impregnation and characterized by BET,H2-TPR, ESR and XPS. Based on our studies of the effects of the extent of catalyst reduction on catalytic performance, we conclude that the V2O5/_-Al2O3 catalytic activity for the dehydrogenation of isobutane is related to the valence state of vanadium present in the catalyst, in the order of V4+> V3+. Furthermore, V4+ species are the main active sites of this reaction under the present reaction conditions.

Słowa kluczowe

EN

dehydrogenation; isobutane; reduction; vanadium oxide

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2003
• Tom: Vol. 77 / nr 7
• Strony: 903--908
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Ma H.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Fu Y.-H.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Li Y.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Wang Z. -L.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Zhu W. -C.

• Department of Chemistry, Jilin University, Changchun 130023, China

autor

Wang G.-J.

• Department of Chemistry, Jilin University, Changchun 130023, China

Bibliografia

• 1. Blasco T. and López Nieto J.M., Appl. Catal. A: Gen., 157, 117 (1997).
• 2. Mamedov E.A. and Cortés C.V., Appl. Catal. A: Gen., 127, 1 (1995).
• 3. Dutoit D.C.M., Reiche M.A. and Baiker A., Appl. Catal. B: Envir., 13(3-4), 275 (1997).
• 4. Amiridis M.D., Duevel R.V. and Wachs I.E., Appl. Catal. B: Envir., 20(2), 111 (1999).
• 5. Spencer N.D. and Pereira C.J., J. Catal., 116, 399 (1989).
• 6. Parmaliana A., Arena F., Frusteri F., Midi D. and Sokolovskii V., Catal. Today, 24, 231 (1995).
• 7. Fiero J.L.G., Arrua L.A., López Nieto J.M. and Kremenic G., Appl. Catal., 37, 323 (1988).
• 8. Grzybowska-SwierkoszB., Trifiro F. and VedrineJ.C., Appl., Catal. A: Gen., 157(1-2), 1-420(1997).
• 9. Lakshmi J.L., Ihasz N.J. and Miller J.M., J. Molecular Catalysis A: Chem., 165(1-2), 199 (2001).
• 10. Wildberger M.D., Mallat T., G8beo U. and Baiker A., Appl. Catal. A: Gen., 168(1), 69 (1998).
• 11. Hiroyuki K., Katsumi T. and Odenbrand C.U.I., J. Molecular Catalysis A: Chem., 139(2-3), 189 (1999).
• 12. Harlin M.E.,Niemi V.M. and Krause A.O.I., J. Catal., 195(1), 67 (2000).
• 13. Harlin M.E., Niemi V.M., Krause A.O.I. and Weckhuysen B.M., J. Catal., 203(1), 242 (2001).
• 14. Clark D.M., Tromp P.J.J. and Amoldy P., US Patent 5220092, (1993).
• 15. Lee F.M., US Patent A601U9, (1986) and Lee F.M., US Patent 4644089, (1987).
• 16. Roozeboom F., Mittelmeljer-HazelegerM.C., Moulijn J.A., Medema J., Beer V.H.J. and Gellings P.J., J Phys. Chem., 84, 2783 (1980).
• 17. López Nieto J.M., Kremenic G. and Fierro J.L.G., Appl. Catal., 61, 235 (1990).
• 18. Eckert H. and Wachs I.E., J. Phys. Chem., 93, 6796 (1989).
• 19. Chary K.V.R. and Kishan G„ J. Phys. Chem., 99,14424 (1995).
• 20. Inomata M., Mori K.M., Miyamoto A. and Murakami Y., J. Phys. Chem., 87, 761(1983).
• 21. Nag N.K. and Massoth F.E., J Catal., 124, 127 (1990).
• 22. Kozlowski R., Pettifer R.F. and Thomas J.M., J. Phys. Chem., 87, 5172 (1983).
• 23. Haber J., Kozlowska A. and Kozlowski R., J. Catal., 102, 52 (1986).
• 24. Le Bars J., Vedrine J.C., Auroux A., Trautmant S. and Baems M., Appl. Catal. A., 119, 341 (1994).
• 25. Nag N.K., Chary K.V.R., Rao R. and Subrahmanyam V.S., Appl. Catal., 31, 73 (1987).
• 26. Wang G.J., Ma H.C., Li Y. and Liu Z.Y., React. Kinet. Catal. Lett., 74(1), 103 (2001).