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Formation of soot particles in pyrolysis and oxidation of aliphatic and aromatic hydrocarbons: Experiments and detailed kinetic modeling

  • Kinetics and Mechanism of Chemical Reactions. Catalysis
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Abstract

Experiments on pyrolysis and oxidation of rich mixtures of various aliphatic and simple aromatic hydrocarbons in reflected shock waves have been performed. The mixtures C2H2/Ar, C2H6/Ar, C2H4/Ar, C2H4/O2/Ar, CH4/Ar, CH4/O2/Ar, C3H8/Ar, C3H6/Ar, toluene/Ar, and benzene/Ar were studied. The yield of soot and the temperature of soot particles were determined experimentally by the double-beam absorption emission method. The kinetic model of soot formation during the pyrolysis and oxidation of rich mixtures of aliphatic and aromatic hydrocarbons complemented with a set of nucleations of soot particles from both polyaromatic fragments and unsaturated aliphatic hydrocarbons was suggested. This kinetic model of soot formation was successfully tested. It describes the experimental literature data on the yield of the products of pyrolysis and oxidation of acetylene and diacetylene in a shock tube. The results of our experiments and kinetic calculations of the time, temperature, and concentration dependences are in good agreement for all hydrocarbons under study. All the kinetic parameters of the model remained strictly constant.

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Authors and Affiliations

  1. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia

    G. L. Agafonov, P. A. Vlasov, V. N. Smirnov & A. M. Tereza

  2. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia

    I. V. Bilera & Yu. A. Kolbanovskii

  3. National Research Nuclear University MEPhi (Moscow Engineering Physics Institute), Moscow, Russia

    P. A. Vlasov

Authors
  1. G. L. Agafonov
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  2. I. V. Bilera
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  3. P. A. Vlasov
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  4. Yu. A. Kolbanovskii
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  5. V. N. Smirnov
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  6. A. M. Tereza
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Corresponding author

Correspondence to P. A. Vlasov.

Additional information

Original Russian Text © G.L. Agafonov, I.V. Bilera, P.A. Vlasov, Yu.A. Kolbanovskii, V.N. Smirnov, A.M. Tereza, 2016, published in Khimicheskaya Fizika, 2016, Vol. 35, No. 8, pp. 21–29.

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Agafonov, G.L., Bilera, I.V., Vlasov, P.A. et al. Formation of soot particles in pyrolysis and oxidation of aliphatic and aromatic hydrocarbons: Experiments and detailed kinetic modeling. Russ. J. Phys. Chem. B 10, 587–594 (2016). https://doi.org/10.1134/S1990793116040199

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  • DOI: https://doi.org/10.1134/S1990793116040199

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