Catalysis Letters

, Volume 1, Issue 6–7, pp 223–228 | Cite as

Effect of non-skeletal al species on the conversion of methanol preadsorbed on modified zeolites

  • J. Nováková
  • L. Kubelková
Article
  • 24 Downloads

Abstract

Temperature programmed description of small amounts of preadsorbed and converted methanol (TPD-C) was studied on acidic forms of modified Y zeolites. The modification consisted of generation of various types and amounts of non-skeletal Al species which yield Al Lewis acid sites, and, consequently, of changes of the number and strength of the Brönsted acid sites. All the non-skeletal Al species enhanced the methanol conversion to products whose composition was dependent on their properties as well as on the remaining skeletal hydroxyls.

Keywords

Methanol Physical Chemistry Hydroxyl Zeolite Catalysis 

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Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1988

Authors and Affiliations

  • J. Nováková
    • 1
  • L. Kubelková
    • 1
  1. 1.J. Heyrovský Institute of Physical Chemistry and ElectrochemistryCzechoslovak Academy of SciencesPrague 8Czechoslovakia

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