On the basis of an analysis of thermal methods described in the literature and from the results of experimental investigations of steam conversion, the authors have developed and created a facility for thermal processing of rubber waste. Rubber crumb was used as the raw material; the temperature in the reactor was 500°C; nitrogen, steam, and a mixture of light hydrocarbons (noncondensable part of pyrolysis products) represented the working medium. The pyrolysis yielded 36–38% of a solid fraction, 54–56% of a liquid hydrocarbon fraction, and 6–9% of noncondensable gases. Changes in the composition of the gas mixture have been determined at different stages of processing. Gas chromatography of pyrolysis gases has shown that the basic gases produced by pyrolysis are H2 and hydrocarbons C2H4, C3H6, C3H8, C4H8, C2H6, C3H6O2, and C4H10, and a small amount of H2S, CO, and CO2. Noncondensable gases will be used as a fuel to heat the reactor and to implement the process.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 89, No. 6, pp. 1504–1508, November–December, 2016.
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Lozhechnik, A.V., Savchin, V.V. Pyrolysis of Rubber in a Screw Reactor. J Eng Phys Thermophy 89, 1482–1486 (2016). https://doi.org/10.1007/s10891-016-1517-2
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DOI: https://doi.org/10.1007/s10891-016-1517-2