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The explosive oxidation of hydrocarbons in a supercritical water

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Abstract

The kinetics of oxidation of naphthalene and a heavy oil residue (upon vacuum distillation) by oxygen dissolved in supercritical water is studied in a wide range of temperatures (663 K≤T≤1075 K) and pressures (31MPa≤P≤67MPa). It is established that the oxidation process exhibits an explosive (blow-up) character. The kinetic constants characterizing the thermal explosion are determined. For naphthalene, the heat evolution rate during the explosive oxidation obeys the law W N=1013.10±0.30exp((170.4±1.0 kJ/mol)/RT)×[C10H8]0.46±0.01[O2]0.63±0.01[H2O]1.66±0.03kJ/(l s).

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Authors and Affiliations

  1. Kutateladze Institute of Thermal Physics, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia

    A. A. Vostrikov & S. A. Psarov

Authors
  1. A. A. Vostrikov
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  2. S. A. Psarov
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 28, No. 18, 2002, pp. 54–60.

Original Russian Text Copyright © 2002 by Vostrikov, Psarov.

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Vostrikov, A.A., Psarov, S.A. The explosive oxidation of hydrocarbons in a supercritical water. Tech. Phys. Lett. 28, 776–778 (2002). https://doi.org/10.1134/1.1511782

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  • DOI: https://doi.org/10.1134/1.1511782

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