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.
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Translated from Fizika Goreniya i Vzryva, Vol. 43, No. 4, pp. 82–89, July–August, 2007.
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Surovikin, V.F., Shaitanov, A.G. Formation and growth of dispersed carbon particles during pyrolysis of ethylene, benzene, and naphthalene in a reflected shock wave. Combust Explos Shock Waves 43, 442–448 (2007). https://doi.org/10.1007/s10573-007-0060-z
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DOI: https://doi.org/10.1007/s10573-007-0060-z