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


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.


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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