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Changes in the course of reaction and regeneration of a Pd-Ag/Al2O3 catalyst for the selective hydrogenation of acetylene

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Abstract

The samples of Pd-Ag/Al2O3 catalysts for the selective hydrogenation of acetylene impurities in an ethane-ethylene mixture were studied using the IR spectroscopy of adsorbed CO, X-ray diffraction analysis, and thermogravimetry. In the course of reaction and regeneration, the total concentration of the supported metals (Pd and Ag) changed only slightly. The degree of accessibility of silver atoms to CO adsorption and the amount of these atoms in the nearest environment of palladium atoms decreased to result in an increase in the selectivity of acetylene hydrogenation to ethane. The decrease in the accessibility of silver was due to a change in the phase composition of the alumina support as a result of its rehydration. It was hypothesized that the resulting aluminum hydroxide with the boehmite morphology is a source of the strongest Lewis acid sites, which catalyze oligomerization processes on the catalyst surface.

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References

  1. Plate, N.A. and Slivinskii, E.V., Osnovy khimii i tekhnologii monomerov (Fundamentals of Monomer Chemistry and Engineering), Moscow: Nauka, 2002.

    Google Scholar 

  2. Khrenov, E.G., Perminova, E.A., Fal’kov, I.G., et al., Promyshlennost’ sinteticheskogo kauchuka (Synthetic Rubber Industry), Moscow: TsNIITENeftekhim, 1993, no. 2.

    Google Scholar 

  3. Bond, G.C., Appl. Catal., A, 1997, vol. 149, p. 3.

    Article  CAS  Google Scholar 

  4. Duca, D., Frusteri, F., Parmalina, A., et al., Appl. Catal., A, 1996, vol. 146, p. 269.

    Article  CAS  Google Scholar 

  5. Duca, D., Barone, G., Varga, Z., et al., Catal. Lett., 2001, vol. 72, nos. 1–2, p. 17.

    Article  CAS  Google Scholar 

  6. Shaikhutdinov, Sh.K., Frank, M., Baumer, M., et al., Catal. Lett., 2002, vol. 80, nos. 3–4, p. 115.

    Article  CAS  Google Scholar 

  7. Asplund, S., J. Catal., 1996, vol. 158, p. 267.

    Article  CAS  Google Scholar 

  8. Liu, R.-J., Crozier, P.A., Smith, C.M., et al., Appl. Catal., A, 2005, vol. 282, p. 111.

    Article  CAS  Google Scholar 

  9. Ostrovskii, N.M., Kinetika dezaktivatsii katalizatorov (Catalyst Deactivation Kinetics), Moscow: Nauka, 2001.

    Google Scholar 

  10. Voronova, G.A., Vodyankina, O.V., Belousova, V.N., et al., Kinet. Katal., 2003, vol. 44, no. 5, p. 713 [Kinet. Catal. (Engl. Transl.), vol. 44, no. 5, p. 652].

    Google Scholar 

  11. Paukshtis, E.A., Infrakrasnaya spektroskopiya v geterogennom kislotno-osnovnom katalize (Infrared Spectroscopy in Heterogeneous Acid-Base Catalysis), Novosibirsk: Nauka, 1992.

    Google Scholar 

  12. Huang, D.C., Chang, K.H., Pong, W.F., et al., Catal. Lett., 1998, vol. 53, p. 155.

    Article  CAS  Google Scholar 

  13. Muslehiddinoglu, J. and Vannice, M.A., J. Catal, 2003, vol. 213, p. 305.

    Article  CAS  Google Scholar 

  14. Giordano, L., Del Vitto, A., Pacchioni, G., et al., Surf. Sci., 2003, vol. 540, p. 63.

    Article  CAS  Google Scholar 

  15. Davydov, A.A., IK-spektroskopiya v khimii poverkhnosti okislov (IR Spectroscopy in Oxide Surface Chemistry), Novosibirsk: Nauka, 1984.

    Google Scholar 

  16. Temkin, O.N. and Bruk, L.G., Usp. Khim., 1983, vol. 52, no. 2, p. 206.

    CAS  Google Scholar 

  17. Akolekar, D.B. and Bhargava, S.K., J. Mol. Catal., 2000, vol. 157, p. 199.

    Article  CAS  Google Scholar 

  18. Alekseev, O.S. and Ryndin, Yu.A., Usp. Khim., 1992, vol. 61, no. 4, p. 765.

    CAS  Google Scholar 

  19. Mornar, A., Sarkany, A., and Varga, M., J. Mol. Catal. A: Chem., 2001, vol. 173, p. 185.

    Article  Google Scholar 

  20. Sarkany, A., React. Kinet. Catal. Lett., 2001, vol. 74, no. 2, p. 299.

    Article  CAS  Google Scholar 

  21. Prokudina, N.A., Chesnokov, V.V., Paukshtis, E.A., et al., Kinet. Katal., 1989, vol. 30, no. 4, p. 949.

    CAS  Google Scholar 

  22. Dzis’ko, V.A., Tarasova, D.V., and Karnaukhov, A.P., Fiziko-khimicheskie osnovy sinteza okisnykh katalizatorov (Physicochemical Foundations of the Synthesis of Oxide Catalysts), Novosibirsk: Nauka, 1978.

    Google Scholar 

  23. Paramzin, S.M., Zolotovskii, V.P., and Buyanov, R.A., Sib. Khim. Zh., 1992, no. 2, p. 130.

  24. Lamberov, A.A., Levin, O.V., Egorova, S.R., et al., Zh. Prikl. Khim., 2003, vol. 76, no. 1, p. 50.

    Google Scholar 

  25. Physical and Chemical Aspects of Adsorbents and Catalysts, Linsen, B.G., Ed., London: Academic, 1970.

    Google Scholar 

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Original Russian Text © A.A. Lamberov, S.R. Egorova, I.R. Il’yasov, Kh.Kh. Gil’manov, S.V. Trifonov, V.M. Shatilov, A.Sh. Ziyatdinov, 2007, published in Kinetika i Kataliz, 2007, Vol. 48, No. 1, pp. 143–149.

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Lamberov, A.A., Egorova, S.R., Il’yasov, I.R. et al. Changes in the course of reaction and regeneration of a Pd-Ag/Al2O3 catalyst for the selective hydrogenation of acetylene. Kinet Catal 48, 136–142 (2007). https://doi.org/10.1134/S0023158407010181

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  • DOI: https://doi.org/10.1134/S0023158407010181

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