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Study of the composition of catalyzates and of phase equilibria with diethylene glycol

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Chemistry and Technology of Fuels and Oils Aims and scope

Conclusions

  1. 1)

    The composition was studied of the catalyzates from the reforming of the 105–140‡ C fraction of Tuimazin petroleum and of the Karadag condensate which were then used to develop a process for the extraction of xylenes with DEG. It was shown that both types of raw material have a similar composition. The concentration of the xylene fraction is 40–50% per catalyzate.

  2. 2)

    The phase equilibria (liquid-liquid) were studied in the systems DEG-catalyzate and the following optimum conditions were established for the extraction: temperature-150‡ C, concentration of water in the DEG as it enters the extractor-7.0% by weight, weight ratio DEG∶raw material-9-10∶1 (when working without a recycle).

  3. 3)

    An empirical equation was derived relating Ka to temperature, concentration of water in the DEG, and the DEG∶raw material ratio.

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Literature cited

  1. H. W. Grote, Chem. Eng. Prog.,54, No. 8 (1958), p. 43.

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Authors and Affiliations

  1. All-Union Scientific Research Institute Neftekhim, USSR

    G. M. Avdei & V. N. Pokorskii

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  1. G. M. Avdei
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  2. V. N. Pokorskii
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Avdei, G.M., Pokorskii, V.N. Study of the composition of catalyzates and of phase equilibria with diethylene glycol. Chem Technol Fuels Oils 1, 515–520 (1965). https://doi.org/10.1007/BF00731393

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  • DOI: https://doi.org/10.1007/BF00731393

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