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Analysis and Modeling of the Hydroisomerization Process for n-Hexane

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Abstract

A stage six-path mechanism for the reaction of n-hexane hydroisomerization on a BEA Pt-zeolite catalyst has been proposed. The mass flow rate of n-hexane in the feed stream varies in the range of 0.7−2.8 h−1; the mole ratio of hydrogen to the n-hexane range of 2.7–14.6; the reactor temperature falls in the range from 453 to 573 K; and the gas flow pressure varies in the range of 1.0–10.0 atm. Thirty experiments have been carried out. In the product stream, the concentrations of n-hexane, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, 2,3-dimethylbutane, propane, C1-alkanes, and C2-alkanes are analyzed by gas chromatography. A kinetic model has been constructed for the six-path mechanism of the reaction of n-hexane hydroisomerization, which contains 15 kinetic constants. Based on the results of laboratory experiments, the kinetic constants of the model have been estimated by the method of nonlinear least squares. The model has been shown to correspond with the experiment in the selected field of experimentation.

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Authors and Affiliations

  1. Mendeleev University of Chemical Technology of Russia, Moscow, 125047, Russia

    E. V. Pisarenko & V. N. Pisarenko

  2. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, 119991, Russia

    A. B. Ponomarev

Authors
  1. E. V. Pisarenko
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  2. A. B. Ponomarev
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  3. V. N. Pisarenko
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Correspondence to A. B. Ponomarev.

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Original Russian Text © E.V. Pisarenko, A.B. Ponomarev, V.N. Pisarenko, 2018, published in Teoreticheskie Osnovy Khimicheskoi Tekhnologii, 2018, Vol. 52, No. 1, pp. 26–37.

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Pisarenko, E.V., Ponomarev, A.B. & Pisarenko, V.N. Analysis and Modeling of the Hydroisomerization Process for n-Hexane. Theor Found Chem Eng 52, 24–34 (2018). https://doi.org/10.1134/S004057951801013X

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  • DOI: https://doi.org/10.1134/S004057951801013X

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