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Some aspects of the mechanism of the catalytic dehydrocyclooligomerization of ethylene and ethane to aromatic hydrocarbons

  • Organic Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The aromatization of ethylene in the presence of catalysts consisting of alumina and Group VIII metals as well as fluorinated aluminum oxide is a complex, multistep process involving a series of consecutive and parallel steps, including oligomerization, cooligomerization, C5- and C6-cyclization, dehydroisomerization, alkylation, dealkylation, and cracking.

  2. 2.

    One of the major pathways for the cyclotrimerization of ethylene on the catalysts studied is through the intermediate formation of ethylene dimers and trimers.

  3. 3.

    Experimental evidence was found for a second, independent pathway for ethylene cyclotrimerization through the intermediate formation of C9-C12 hydrocarbons and their subsequent decomposition and the transfer of molecular fragments.

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Literature cited

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Authors and Affiliations

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

    O. V. Bragin, T. V. Vasina, A. V. Preobrazhenskii, V. N. Lutovinova & A. L. Liberman

Authors
  1. O. V. Bragin
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  2. T. V. Vasina
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  3. A. V. Preobrazhenskii
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  4. V. N. Lutovinova
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  5. A. L. Liberman
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2296–2303, October, 1982.

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Bragin, O.V., Vasina, T.V., Preobrazhenskii, A.V. et al. Some aspects of the mechanism of the catalytic dehydrocyclooligomerization of ethylene and ethane to aromatic hydrocarbons. Russ Chem Bull 31, 2021–2027 (1982). https://doi.org/10.1007/BF00950645

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  • DOI: https://doi.org/10.1007/BF00950645

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