Abstract
It has been shown that the reaction rate of the thermal decomposition of acid tar containing sulfoacids obeys the equation of the first order reaction. Two temperature ranges of thermal decomposition have been detected. The processes of the liquid phase transformation of the components of the reaction mixture dominate in the low temperature range (200–360°C, apparent activation energy E = 37 kJ/mol), and gas-phase reactions dominate in the high temperature range (390–500°C, E = 106 kJ/mol). Sulfuric acid, additionally introduced into acid tar, participates in redox reactions, resulting in the rapid formation of sulfur(IV) oxides and benzene.
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References
A. V. Frolov, T. S. Titova, I. V. Karpova, and T. L. Denisova, Khim. Tekhnol. Topl. Masel, No. 6, 37 (1985).
G. D. Kreitser, Asfal’ty, bitumy, peki (Promstroiizdat, Moscow, 1952), p. 17 [in Russian].
A. D. Zorin, V. F. Zanozina, G. A. Kolmakov, et al., RF Patent No. 2005130406, Byull. Izobret., No. (2005).
M. S. Barskov and N. N. Karpov, RF Patent No. 2191201, Byull. Izobret., No. (2002).
G. I. Makin, G. M. Makeev, A. V. Ganyushkin, et al., USSR Inventor’s Certificate No. 1518353, Byull. Izobret., No. 40 (1989).
E. V. Smidovich, Tekhnologiya pererabotki nefti i gaza, Ch. II (Khimiya, Moscow, 1968) [in Russian].
Yu. M. Zhorov, Kinetika promyshlennykh organicheskikh reaktsii (Khimiya, Moscow, 1989) [in Russian].
G. A. Kolmakov, V. F. Zanozina, M. V. Khmeleva, A. S. Okhlopkov, D. F. Grishin, and A. D Zorin, Neftekhimiya 46(1), 19 (2006) [Pet. Chem. 46, (1)].
Yu. B. Amerik, Neftekhimiya 35(3), 228 (1995).
T. V. Bukharkina, N. G. Digurov, V. A. Zharkikh, et al., Neftekhimiya 33(3), 271 (1993).
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Original Russian Text © V.A. Yablokov, G.A. Kolmakov, S.V. Mitrofanova, V.F. Zanozina, E. N. Karataev, A.D. Zorin, D.F. Grishin, 2010, published in Neftekhimiya, 2010, Vol. 50, No. 3, pp. 247–251.
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Yablokov, V.A., Kolmakov, G.A., Mitrofanova, S.V. et al. Kinetics of the thermal decomposition of acid tar. Pet. Chem. 50, 237–241 (2010). https://doi.org/10.1134/S0965544110030096
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DOI: https://doi.org/10.1134/S0965544110030096