Advertisement

Reaction Kinetics and Catalysis Letters

, Volume 92, Issue 2, pp 345–354 | Cite as

Activity and selectivity of zeolite MCM-22 catalysts in the disproportionation of toluene

  • Magdolna R. Mihályi
  • Ilian Kolev
  • Vesselina Mavrodinova
  • Christo Minchev
  • Márton Kollár
  • József Valyon
Article

Abstract

Zeolite precursor MCM-22 samples were prepared by hydrothermal synthesis. The H-zeolites, obtained from the precursors, were characterized by scanning electron microscopy (SEM), Fourier-transform infrared (FT-IR) spectroscopy, and by their activity in the title reaction. Despite of the lower Brönsted acid site concentration of the zeolite having smaller crystallites, showed higher activity, while the zeolite, having larger crystals were more selective for p-xylene formation.

Keywords

Zeolite MCM-22 crystallite size H-form toluene disproportionation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    P. Wu, T. Komatsu, T. Yashima: Micropor. Mesopor. Mater., 22, 343 (1998).CrossRefGoogle Scholar
  2. 2.
    S.-H. Park, H.-K. Rhee: React. Kinet. Catal. Lett., 78, 73 (2003).CrossRefGoogle Scholar
  3. 3.
    G.G. Juttu, R.F. Lobo: Micropor. Mesopor. Mater., 40, 9 (2000).CrossRefGoogle Scholar
  4. 4.
    S. Laforge, D. Martin, J. Paillaud, M. Guisnet: J. Catal., 220, 92 (2003).CrossRefGoogle Scholar
  5. 5.
    S. Laforge, D. Martin, M. Guisnet: Micropor. Mesopor. Mater., 67, 235 (2004).CrossRefGoogle Scholar
  6. 6.
    S. Laforge, D. Martin, M. Guisnet: Appl. Catal., A, 268, 33 (2004).CrossRefGoogle Scholar
  7. 7.
    W. Souverijns, W. Varrelst, G. Vanbutsele, J.A. Martens, P. Jacobs: J. Chem. Soc., Chem. Commun., 1671 (1994).Google Scholar
  8. 8.
    A. Corma, C. Corell, A. Martinez, J. Perez-Pariente: in: Zeolites and Related Microporous Materials: State of the Art 1994 (J. Weitkamp, H. Karge, H. Pfeifer, W. Hoelderich, Eds), Stud. Surf. Sci. Catal., Vol. 84, p.859. Elsevier 1994.Google Scholar
  9. 9.
    R. Ravishankar, D. Bhattacharya, N. Jacob, S. Sivasanka: Microporous Materials, 4, 83 (1995).CrossRefGoogle Scholar
  10. 10.
    V. Mavrodinova, M. Popova, Y. Neinska, Ch. Minchev: Appl. Catal., 210, 397 (2001).CrossRefGoogle Scholar
  11. 11.
    E. Bourgeat-Lami, P. Massiani, F. Di Renzo, P. Espiau, F. Fajula: Appl. Catal., 72, 139 (1991).CrossRefGoogle Scholar
  12. 12.
    C. Yang, Q. Xu: Zeolites, 19, 404 (1997).CrossRefGoogle Scholar
  13. 13.
    C. Jia, P. Massiani, D. Barthomeuf: J. Chem. Soc., Farad. Trans., 89, 3659 (1993).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC. 2007

Authors and Affiliations

  • Magdolna R. Mihályi
    • 1
  • Ilian Kolev
    • 2
  • Vesselina Mavrodinova
    • 2
  • Christo Minchev
    • 2
  • Márton Kollár
    • 1
  • József Valyon
    • 1
  1. 1.Institute of Surface Chemistry and Catalysis, Chemical Research CenterHungarian Academy of SciencesBudapestHungary
  2. 2.Institute of Organic ChemistryBulgarian Academy of SciencesSofiaBulgaria

Personalised recommendations