Catalysis Letters

, Volume 31, Issue 4, pp 359–366 | Cite as

Study of the sorption and acidic properties of MTW-type zeolite

  • B. H. Chiche
  • R. Dutartre
  • F. Di Renzo
  • F. Fajula
  • A. Katovic
  • A. Regina
  • G. Giordano
Article

Abstract

The acidity of H-MTW-type zeolite has been investigated using infrared spectroscopy of adsorbed pyridine. Pore volume has been measured by nitrogen andn-hexane adsorption. The zeolite exhibits infrared signals at 3612 and 3580 cm−1 tentatively attributed to bridging hydroxyl groups vibrating in the main channel and in the six-membered rings of the structure, respectively. Both hydroxyl groups possess high acid strength and are readily accessible to pyridine. H-MTW shows an-hexane cracking activity at 350°C comparable to that obtained with MFI and BEA-type materials with a product selectivity between medium and large pore structural types.

Keywords

zeolite MTW ZSM-12 acidity pyridine adsorption FTIR n-hexane cracking 

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Copyright information

© J.C. Baltzer AG, Science Publishers 1995

Authors and Affiliations

  • B. H. Chiche
    • 1
  • R. Dutartre
    • 1
  • F. Di Renzo
    • 1
  • F. Fajula
    • 1
  • A. Katovic
    • 2
  • A. Regina
    • 2
  • G. Giordano
    • 2
  1. 1.Laboratoire de Matériaux Catalytiques et Catalyse en Chimie OrganiqueURA 418 CNRS, ENSCMMontpellier CedexFrance
  2. 2.Dipartimento di Ingegneria Chimica e dei MaterialiUniversità della CalabriaRendeItaly

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