The thermolysis of Mongolian coals of different ranks was studied using thermal analysis (TG/DTG). The stepwise decomposition under conditions of programmed heating to 1000°C in an atmosphere of argon was found. The kinetic parameters of pyrolysis were determined based on thermogravimetric analysis with the use of model-fitting (Coats–Redfern) and model-free (Ozawa–Flynn–Wall) calculation methods. Changes in the activation energy with the degree of decomposition of the organic matter of coals of different ranks were established. A kinetic compensation effect was revealed, which was, probably due to the multicomponent composition of coals.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Tax calculation will be finalised during checkout.
Shin, S., Im, S.I., Nho, N.S., and Lee, K.B., J. Therm. Anal. Calorim., 2016, vol. 126, p. 933.
Xu, Y., Zhang, Y., Wang, Y., Zhang, G., and Chen, L., React. Kinet. Mech. Cat., 2013, vol. 110, p. 225.
Mar’yandyshev, P.A., Chernov, A.A., Popova, E.I., and Lyubov, V.K., Solid Fuel Chem., 2016, vol. 50, no. 3, p. 167. https://doi.org/10.3103/S0361521916030095
Freeman, E.S. and Carrol, B., J. Phys. Chem., 1958, vol. 62, p. 394.
Coats, A.W. and Redfern, J.P., Nature, 1964, vol. 201, p. 68.
Kissinger, H.E., Anal. Chem., 1957, vol. 29, no. 11, p. 1703.
Kissinger, H.E., J. Res. Nat. Bur. Stand., 1956, vol. 57, p. 217.
Flynn, J. and Wall, L., J. Polym. Sci. Part B: Polym. Phys., 1966, vol. 4, p. 323.
Ozawa, T., Bull. Chem. Soc. Jpn., 1965, vol. 38, p. 1881.
Du, Z., Sarofim, A.F., and Longwell, J.P., Energy Fuels, 1990, vol. 4, p. 296.
Fetisova, O.Yu., Mikova, N.M., and Chesnokov, N.V., Kinet. Catal., 2019, vol. 60, no. 3, p. 273. https://doi.org/10.1134/S0023158419030054
Fetisova, O.Yu., Kuznetsov, P.N., and Chesnokov, N.V., Khim. Interesakh Ustoich. Razvit., 2019, vol. 27, no. 6, p. 677. https://doi.org/10.15372/KhUR2019190
Solomon, P.R., Serio, M.A., and Suuberg, E.M., Progr. Energy Combust. Sci., 1992, vol. 18, p. 133.
Fedorova, N. I., Manina, T. S., Ismagilov, Z. R., and Avid, B., Solid Fuel Chem., 2015, vol. 49, no. 3, p. 129. https://doi.org/10.3103/S0361521915030064
Ashraf, A., Sattar, H., and Munir, S., Fuel, 2019, vol. 240, p. 326.
Masnadi, M.S., Habibi, R., Kopyscinski, J., Hill, J.M., Bi, X., Lim, C.J., Ellis, N., and Grace, J.R., Fuel, 2014, vol. 117, p. 1204.
This work was supported by the Russian Foundation for Basic Research (grant no. 19-53-44001) and the Mongolian Science and Technology Foundation (grant no. ShUGKh/OKhU/-2019/13) and carried out within the framework of a state contract at the Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences (project no. AAAA-A17-117021310220-0) using the equipment of the Krasnoyarsk Regional Center of Collective Use of the Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences and at the Institute of Chemistry and Chemical Technology of the Mongolian Academy of Sciences.
Translated by V. Makhlyarchuk
About this article
Cite this article
Fetisova, O.Y., Kuznetsov, P.N., Purevsuren, B. et al. A Kinetic Study of the Stepwise Thermal Decomposition of Various Coals from Mongolia. Solid Fuel Chem. 55, 1–7 (2021). https://doi.org/10.3103/S0361521921010031
- thermal decomposition
- differential thermogravimetry
- activation energy
- compensation effect