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Combustion, Explosion, and Shock Waves

, Volume 43, Issue 4, pp 442–448 | Cite as

Formation and growth of dispersed carbon particles during pyrolysis of ethylene, benzene, and naphthalene in a reflected shock wave

  • V. F. Surovikin
  • A. G. Shaitanov
Article

Abstract

The formation and growth rates of dispersed carbon particles were determined experimentally for pyrolysis of ethylene, benzene, and naphthalene in a reflected shock wave at temperatures of 1920–2560 K and hydrocarbon concentrations in argon of 1.8–20%. The diameter of the particles formed was estimated (30–600 Å). The maximum rate of particle formation at various temperatures [(0.7–96) · 1016 cm−3·sec−1] and the particle growth rate (0.002–0.036 cm · sec−1) were determined from results of measurements of reaction (residence) times. For pyrolysis of benzene, the activation energy of the overall process of particle formation is 410 kJ/mole, and for all hydrocarbons studied, the activation energy of the overall process of particle growth is 5–50 kJ/mole. The surface average particle diameter increases with increasing concentration of the initial hydrocarbon at a constant temperature.

Key words

shock tube thermal decomposition individual hydrocarbons dispersed carbon formation mechanism 

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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • V. F. Surovikin
    • 1
  • A. G. Shaitanov
    • 1
  1. 1.Institute of Problems of Hydrocarbon Processing, Siberian DivisionRussian Academy of SciencesOmsk

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