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Study of the catalytic properties of pentasil-containing composites in transformation of hydrocarbons 4. Formation of products of condensation during oligomerization and aromatization of ethylene on the pentasil-aluminum oxide system

  • Inorganic Chemistry
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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Abstract

The process of formation of products of condensation (PC) during oligomerization (280°C) and aromatization (500°C) of ethylene in the presence of H-pentasil (HTsVM)-γ-Al2O3 was studied by IR spectroscopy, DTA, DTG, and chemical analysis. The mutual effect of the components of the composite on the formation of PC in aromatization of C2H4 was detected. PC are formed with the participation of acid sites both inside the channels and on the outer surface of the zeolite. Three types of PC were found: linear polyene structures with C/H=0.8 (oligomerization), aromatic structures with C/H=1.5 (aromatization on HTsVM), and crosslinked polyene structures with C/H=2.45 (aromatization on Al2O3). The composition and structure of the PC formed on HTsVM during transformations of ethylene are a function of the molecular-sieve properties of the pentasil and the experimental conditions.

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Authors and Affiliations

  1. N.D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow

    V. I. Yakerson, V. D. Nissenbaum, T. V. Vasina, L. I. Lafer, S. A. Isaev, E. L. Denisova, Zh. L. Dykh & O. V. Bragin

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  1. V. I. Yakerson
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  2. V. D. Nissenbaum
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  3. T. V. Vasina
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  4. L. I. Lafer
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  5. S. A. Isaev
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  6. E. L. Denisova
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  7. Zh. L. Dykh
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  8. O. V. Bragin
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Additional information

For previous communication, see [1].

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1244–1250, June, 1990.

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Yakerson, V.I., Nissenbaum, V.D., Vasina, T.V. et al. Study of the catalytic properties of pentasil-containing composites in transformation of hydrocarbons 4. Formation of products of condensation during oligomerization and aromatization of ethylene on the pentasil-aluminum oxide system. Russ Chem Bull 39, 1115–1120 (1990). https://doi.org/10.1007/BF00962366

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  • DOI: https://doi.org/10.1007/BF00962366

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