Abstract
The kinetics of the formation of condensed carbon particles in the thermal decomposition of C3O2molecules behind shock waves was experimentally studied at temperatures of 1200–2500 K, pressures of ∼20–60 atm, and molar fractions of C3O2in a mixture with argon in the range 0.03–2.00%. The concentration of condensed carbon particles was measured by the absorption of laser radiation at wavelengths of 632.8 and 1064 nm. The experimental results were compared with data calculated in the framework of three different models. Two of these models (analytical) include the kinetics of the formation of the particle-size distribution function and give a simplified description of the kinetics of gas-phase reactions involving C3O2and decomposition fragments. The third model (numerical) combines detailed descriptions of the kinetics and the coagulation dynamics. Several types of condensed carbon particles were considered: carbon clusters, soot particles, and fullerenes. The transitions between various forms of condensed carbon particles were included into the kinetic scheme of the model. All main observed specific features of the growth kinetics of condensed carbon particles during C3O2pyrolysis can be described in terms of these models.
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Wagner, H.G., Vlasov, P.A., Dorge, K.J. et al. Kinetics of Carbon Cluster Formation in the Course of C3O2Pyrolysis. Kinetics and Catalysis 42, 583–593 (2001). https://doi.org/10.1023/A:1012398909570
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DOI: https://doi.org/10.1023/A:1012398909570