Journal of Siberian Federal University. Engineering & Technologies / Determination of the Prospects for Use of Substandard Coals for Use in the Coal Chemical Industry

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2026 19 (3)
Authors
Ushakov, Konstantin Yu.; Bogomolov, Aleksandr R.; Sadovskiy, Vladimir M.; Murko, Vasiliy I.
Contact information
Bogomolov, Aleksandr R.: T.F. Gorbachev Kuzbass State Technical University (Kemerovo, Russian Federation); ; ; Ushakov, Konstantin Yu.: T.F. Gorbachev Kuzbass State Technical University (Kemerovo, Russian Federation); Sadovskiy, Vladimir M. : T.F. Gorbachev Kuzbass State Technical University (Kemerovo, Russian Federation); Murko, Vasiliy I.: Siberian State Industrial University (Novokuznetsk, Russian Federation);
Keywords
substandard brown coals; thermogravimetric analysis (TGA); differential scanning calorimetry (DSC); IR spectroscopy; hydrogenation; gasification; liquid coal chemical products
Abstract

In light of the refusal of a number of countries to use nuclear and coal power generation and the growing dependence on natural gas, leading to higher prices for raw materials, coal is seen as a promising raw material for the chemical industry. In this paper, a comprehensive analysis of substandard brown coals from the Itatskoye, Karakanskoye, Sarykolskoye, Munayskoye and Chernogorskoye deposits is carried out in order to assess their suitability for coal chemical processing. The research included technical and elemental analyses, thermogravimetric analysis (TG/DSC) in inert (argon) environment, IR spectroscopy. The technical characteristics of coals, as well as such parameters as the atomic ratio H/C, the ratio of aliphatic and aromatic structures, the relative maximum rate of pyrolysis and the activation energy of the thermal decomposition process were determined, on the basis of which an assumption was made about the applicability of the coals under consideration for coal chemical use. It was established that brown coals from the Itatskoye and Munayskoye deposits have the lowest thermal stability (the lowest temperatures of maximum decomposition rate and peak oxidation temperatures), the highest mass losses during pyrolysis in an inert environment (47.3 % and 38.7 %), high values of H/C (0.93 and 1.01) and the ratio of aliphatic and aromatic structures 0.68 and 0.42, which indicates that they are the most promising of the coals under consideration for obtaining liquid products. Coal of the Sarykolskoye deposit is recognized as the least suitable for hydrogenation processing and is recommended for consideration in the technology of obtaining gaseous fuel

Pages
342–354
EDN
HZRCXQ
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/158285

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