Reaction Kinetics and Catalysis Letters

, Volume 37, Issue 1, pp 77–81 | Cite as

Adsorption study of dealuminated HY zeolites

  • J. Szanyi
  • J. Engelhardt
  • J. Valyon


Pyridine (py) and acetic acid (Ac) adsorption on dealuminated HY zeolites with Al content in the range of 3.9–58 per unit cell (U.C.) was studied at 553 K by a flow-gravimetric technique. The ratio of the number of adsorbed py and Ac molecules to the number of Al atoms was plotted as a function of the Al content. The plot passes through a maximum for py and a minimum for Ac. The extrema are at about 30 Al/U.C.


Acetic Physical Chemistry Acetic Acid Zeolite Catalysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Адсорбцию пиридина (Py) и уксусной кислоты (Ac) на деалюминированных цеолитах HY с содержанием Al 3,9–58 на единицу ячейки (U.C.) исследовали при 553 к с помощью струевого гравиметрического метода. Отношение числа адсорбированных молекул Py и Ac к числу атомов Al изображали в зависимости от содержания Al. Кривая имеет максимум в случае Py и минимум в случае Ac. Экстремы находятся в области 30 Al/U.C..


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    D. Barthomeuf: Zeolites: Science and Technology, Series F: Applied Sciences — No. 80 (Ribeiro, F.R., Ed.) p. 317. Martinus Nijhoff Publishers 1984.Google Scholar
  2. 2.
    D. Barthomeuf: Materials Chem.Phys.,17, 49 (1987)Google Scholar
  3. 3.
    A. Bielanski, J. Datka: J.Catal.,32, 183 (1974)Google Scholar
  4. 4.
    D. Barthomeuf: J.Phys.Chem.,88, 42 (1984)Google Scholar
  5. 5.
    H.K. Beyer, I.M. Belenykaya, F. Hange, M. Tielen, P.J. Grobet, P.A. Jacobs: J.Chem.Soc. Faraday Trans. I,81, 2889 (1985)Google Scholar
  6. 6.
    J. Engelhardt, J. Szanyi, J. Valyon: J.Catal. (in press)Google Scholar
  7. 7.
    R.T. Sanderson: Chemical Bonds and Bond Energy. Academic Press, New York 1976.Google Scholar
  8. 8.
    P.A. Jacobs, W.J. Mortier, J.R. Uytterhoeven: J.Inorg.Nucl. Chem.,40, 1919 (1978)Google Scholar

Copyright information

© Akadémiai Kiadó 1988

Authors and Affiliations

  • J. Szanyi
    • 1
  • J. Engelhardt
    • 1
  • J. Valyon
    • 1
  1. 1.Central Research Institute for Chemistry of the HungarianAcademy of SciencesBudapestHungary

Personalised recommendations