The article discusses the thermal polycondensation methods of petroleum pitch production. The main attention is paid to the characteristics of petroleum pitch, its properties, and its comparison with coal-tar pitch. It describes three promising petroleum pitch production technologies, namely, thermal polycondensation of cracking residue, high-temperature thermal polycondensation of petroleum stock, and two-stage thermal polycondensation of pyrolysis tar. Methods of petroleum pitch production under laboratory conditions, such as thermal polycondensation under pressure and thermal treatment at low pressure, are proposed. The urgency and expediency of promotion of petroleum pitch production and introduction of thermal polycondensation process in Russia are underscored.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 2, pp. 7 — 11, March —April, 2021.
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Mikhailets, N.R., Sinitsin, S.A. & Danilov, E.A. Thermal Polycondensation Process and Petroleum Pitch Production. Chem Technol Fuels Oils 57, 216–223 (2021). https://doi.org/10.1007/s10553-021-01241-y
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DOI: https://doi.org/10.1007/s10553-021-01241-y