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Selective catalytic transformations of methanol to C2-C3 hydrocarbons over the new zeolite type LZ 132

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Abstract

The small pore zeolite HLZ 132 exhibits, in comparison with other zeolites, an increased selectivity for the transformation of methanol to ethylene in the reaction temperature range 350–500 °C: the weight ratio of C2H4 to C3H6 in the products ranges between 1 and 4 at WHSV=2 h−1. Besides the effect of the reactant shape selectivity this fact may be interpreted by the participation of the asymmetrical methoxy groups in the surface as well as by proton-donor centres of lower acidity which do not catalyze the oligomerization of ethylene but which do the more basic molecule of propylene, thereby generating polyene-type coke.

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Authors and Affiliations

  1. J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Dolejškova 3, 182 23, Prague 8, Czechoslovakia

    Zdena Tvarůžková, Magda Tupá & Pavel Jírů

  2. Department of Chemistry, University, Consenza, Italy

    Alfonso Nastro & Giorgio Giordano

  3. Department of Industrial Chemistry and Materials, University of Bologna, Viale del Risorgimento 4, 40136, Bologna, Italy

    Ferruccio Trifiró

Authors
  1. Zdena Tvarůžková
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  2. Magda Tupá
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  3. Pavel Jírů
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  4. Alfonso Nastro
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  5. Giorgio Giordano
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  6. Ferruccio Trifiró
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Tvarůžková, Z., Tupá, M., Jírů, P. et al. Selective catalytic transformations of methanol to C2-C3 hydrocarbons over the new zeolite type LZ 132. Catal Lett 2, 369–374 (1989). https://doi.org/10.1007/BF00768179

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  • DOI: https://doi.org/10.1007/BF00768179

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