A comparative study of Ir/Ga2O3, Pt/Ga2O3, and Ru/Ga2O3 catalysts in selective hydrogenation of crotonaldehyde

Kinetics and Catalysis - Tập 49 - Trang 574-580 - 2008
E. Gebauer-Henke1, J. Farbotko1, R. Touroude2, J. Rynkowski1
1Institute of General and Ecological Chemistry, Technical University of Lódź, Lódź, Poland
2LMSPC, UMR 7515 du CNRS, ECPM-ULP, Strasbourg Cedex 2, France

Tóm tắt

Catalytic performance of gallia-supported iridium catalysts in the reaction of selective hydrogenation of crotonaldehyde in the gas phase was studied and compared to that of platinum and ruthenium catalysts. The best catalytic properties in terms of the selectivity to crotyl alcohol are shown by 5 wt % Pt/α-Ga2O3 and 5 wt % Ir/α-Ga2O3 catalysts prepared from nonchlorine precursors: Pt(acac)2 and Ir(acac)3, but for the 5 wt % Pt/α-Ga2O3 a very high selectivity of 75% at the high conversion (ca. 60%) is observed. A high selectivity of galia-supported iridium and platinum catalysts was explained by the surface reducibility of gallium oxide leading to covering (decoration) of platinum and iridium by gallium suboxides and the promoting effect of gallium.

Tài liệu tham khảo

Ponec, V., Appl. Catal., A, 1997, vol. 149, p. 27. Gallezot, P. and Richard, D., Catal. Rev. Sci. Eng., 1998, vol. 40, p. 81. Schimpf, S., Gaube, J., and Claus, P., in Basic Principles in Applied Catalysis, Baerns, M., Ed., Springer Series in Chemical Physics, 2004, vol. 75, p. 87. Toebes, M.L., Nijhuis, T.A., Hajek, J., Bitter, J.H., van Dillen, A.J., Murzin, D.Yu., and de Jong, K.P., Chem. Eng. Sci., 2005, vol. 60, p. 5682. Makouangou, R.M., Murzin, D.Yu., Dauscher, A.E., and Touroude, R., Ind. Eng. Chem. Res., 1994, vol. 33, p. 1881. Abid, M. and Touroude, R., Catal. Lett., 2000, vol. 69, p. 139. Richard, D. and Gallezot, P., in Heterogeneous Catalysis and Fine Chemicals, Guisnet, M., Barrault, J., Bouchoule, C., Duprez, D., Montassier, C., and Perot, G., Eds., Amsterdam: Elsevier, 1988, p. 171. Anisimova, N.V., Zharmagambetova, A.K., Mukhamedzhanova, S.C., and Edygenova, L.N., React. Kinet. Catal. Lett., 1987, vol. 33, p. 399. Cordier, G., Collueille, Y., and Fouilloux, P., in Catalyse par les metaux, Imellik, B. et al., Eds., Paris: CNRS, 1984, p. 349. Nishimura, S., Handbook of Heterogeneous Catalytic Hydrogenation for Organic Synthesis, New York: Wiley, 2001. Englisch, M., Ranade, V.S., and Lercher, J.A., J. Mol. Catal. A: Chem., 1997, vol. 121, p. 69. Gebauer-Henke, E., Grams, J., Szubiakiewicz, E., Farbotko, J., Touroude, R., and Rynkowski, J., J. Catal., 2007, vol. 250, p. 195. Gebauer-Henke, E. and Rynkowski, J., Pol. J. Chem. (in press). Zheng, B., Hua, W., Yue, Y., and Gao, Z., J. Catal., 2005, vol. 232, p. 143. Roy, R., Hill, V.G., and Osborn, E.F., J. Am. Chem. Soc., 1952, vol. 74, p. 719. Paryjczak, T., Zielinski, T., and Jozwiak, W.K., React. Kinet. Catal. Lett., 1985, vol. 29, p. 167. Reyes, P., Rojas, H., and Fierro, J.L.G., J. Mol. Catal. A: Chem., 2003, vol. 203, p. 203. Marzialetti, T., Fierro, J.L.G., and Reyes, P., Catal. Today, 2005, vol. 107, p. 235. Delbecq, F. and Sautet, P., J. Catal., 1995, vol. 152, p. 217. Dandekar, A. and Vannice, M.A., J. Catal., 1999, vol. 183, p. 344. Gebauer-Henke, E. and Rynkowski, J., Przem. Chem., 2006, vols. 8–9, p. 609. Gebauer-Henke, E., Gebauer, D., Szubiakiewicz, E., Touroude, R., and Rynkowski, J., Pol. J. Environ. Stud., 2005, vol. 14,suppl. IV, p. 235.