Catalysis Letters

, Volume 95, Issue 1, pp 13–17

Improved Performance of Nano-Size H-BEA Zeolite Catalysts for the Friedel–Crafts Acetylation of Anisole by Acetic Anhydride

  • Eric G. Derouane
  • Iver Schmidt
  • Hervé Lachas
  • Claus J.H. Christensen
Article

DOI: 10.1023/B:CATL.0000023715.41857.56

Cite this article as:
Derouane, E.G., Schmidt, I., Lachas, H. et al. Catalysis Letters (2004) 95: 13. doi:10.1023/B:CATL.0000023715.41857.56

Abstract

Nano-size zeolite H-BEA (n-H-BEA) prepared by “confined space synthesis” (CSS) within the pores of a carbon black matrix shows improved activity without loss in para-selectivity for the Friedel–Crafts acetylation of anisole by acetic anhydride. The turnover frequency (TOF) of n-H-BEA exceeds that of a conventional H-BEA catalyst of similar aluminum and thus acid site content by a factor of about three at intermediate conversion. The latter observation is attributed to enhanced access and better utilization of the whole zeolite intracrystalline volume by the reactants as well as to the easier desorption of the acetylated product, p-methoxyacetophenone.

zeoliteH-BEAparticle sizeacid catalysisFriedel–Craftsacetylationanisolenanotechnology

Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  • Eric G. Derouane
    • 1
  • Iver Schmidt
    • 3
  • Hervé Lachas
    • 1
  • Claus J.H. Christensen
    • 1
  1. 1.Department of Chemistry, Leverhulme Centre for Innovative CatalysisUniversity of LiverpoolLiverpoolUK
  2. 2.Campus de Gambelas, Faculdade de Ciéncias eTechnologia Universidade do AlgraveFaroPortugal
  3. 3.Haldor Topsøe A/S Research LaboratoriesLyngbyDenmark
  4. 4.Department of ChemistryTechnical University of DenmarkLyngbyDenmark