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Sodium removal and catalytic properties of HNaZSM-20 zeolite. Comparison with Y zeolite

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Abstract

A series of HNaZSM-20 catalysts with a varying amount of sodium cations were studied. The samples were prepared by ion exchange starting with a NaZSM-20 sample. The observedammonium-sodium exchange efficiency was slightly higher for ZSM-20 than for Y zeolite. The HNaZSM-20 series presentedhigher cracking activities in then-heptane transformation than the corresponding HNaY series. A decrease in theselectivity for coke deposition with sodium removal was also observed.

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Authors and Affiliations

  1. Centro de Engenharia Biológica e Química, Dept. Eng. Química, Instituto Superior Técnico, Av. Rovisco Pais, 1096, Lisboa Codex, Portugal

    J. M. Lopes & F. Lemos

  2. Leverhulme Center for Innovative Catalysis, Department of Chemistry, The University of Liverpool, L69 3BX, Liverpool, UK

    E. Derouane & F. Ramôa Ribeiro

Authors
  1. J. M. Lopes
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  2. F. Lemos
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  3. E. Derouane
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  4. F. Ramôa Ribeiro
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Lopes, J.M., Lemos, F., Derouane, E. et al. Sodium removal and catalytic properties of HNaZSM-20 zeolite. Comparison with Y zeolite. React Kinet Catal Lett 58, 33–38 (1996). https://doi.org/10.1007/BF02071102

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  • DOI: https://doi.org/10.1007/BF02071102

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