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Preparation of aromatic hydrocarbons from tuimazin gasoline by two-stage a romatization

  • N. I. Shuikin
  • E. D. Tulupova
Article
  • 13 Downloads

Summary

  1. 1.

    By two-stage aromatization of the heptane-methylcyclohexane fraction of Tuimazin gasoline in presence of platinized charcoal (10% Pt) its toluene content can be raised from 5 to 30% by volume.

     
  2. 2.

    Like the platinum catalyst, a nickel-copper-alumina catalyst (67.5% Ni + 2.5% Cu + 30% Al2O3) can be used for the dehydrogenation of cyclohexanes. It is less stable than the platinum catalyst, but it can be regenerated in situ.

     
  3. 3.

    By two-stage aromatization of the octane-dimethylcyclohexane fraction of Tuimazin gasoline in presence of a nickel-copper-alumina catalyst its aromatics (mainly xylene) content can be raised from 8 to 33% by volume. Here the preliminary isomerization of cyclopentanes to cyclohexanes in presence of aluminum chloride accounts for 17% increase in the xylene content.

     
  4. 4.

    Removal of the 91–103° fraction from the whole Tuimazin gasoline does not lower its octane rating.

     

Keywords

Aluminum Chloride Platinum Al2O3 Toluene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Consultants Bureau Enterprises, Inc. 1961

Authors and Affiliations

  • N. I. Shuikin
    • 1
  • E. D. Tulupova
    • 1
  1. 1.N. D. Zelinskii Institute of Organic ChemistryAcademy of Sciences of the USSRUSSR

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