COAL PREPARATION
Original Paper
UDC 66-91.3:622.332 © R.I. Egorov, M.V. Belonogov, 2023
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2023, № 1, pp. 56-61
DOI: http://dx.doi.org/10.18796/0041-5790-2023-1-56-61
Title
HIGH-TEMPERATURE CONVERSION OF LIGNITE AND RAPESEED OIL MIXTURES
Authors
Egorov R.I.1, BelonogovM.V.1
1 Tomsk National Research Polytechnic University, Tomsk, 634050, Russian Federation
Authors Information
Egorov R.I.,PhD (Physical and Mathematical),Research associate, e-mail: rommel@tpu.ru
Belonogov M.V., Postgraduate student, e-mail: 42maxim@mail.ru
Abstract
The paper discusses features of allothermal gasification of fuel mixtures based on lignite and rapeseed oil in different ratios. Based on experimental data, it was demonstrated that the fuel mixture can be converted into the generator gas with a high content of combustible components using external heating with visible light of high intensity (800-900 W/cm2). Analysis of the characteristic temperatures, gas composition and gas generation rates shows that conversion of the mixture containing 40 wt% of rapeseed oil maximizes the thermal effects of oxidation reactions. Three different modes of the process development were observed depending on the content of rapeseed oil in the mixture. The ratio of the combustible (CH4, CO, H2) to non-combustible (CO2) components of the generator gas can be brought up to 1.3:1 at atmospheric pressure. The conversion rate of such a mixture exceeds the characteristic gasification rates of lignite, and the fuel surface temperatures reach 1500?.
Keywords
Fuel mixtures, Lignite, Rapeseed oil, Thermochemical conversion, Allothermal gasification, Generator gas, Renewable fuels, Biofuels.
References
1. Makarov A.A., Mitrov T.A. & Grigoriev L.M. Forecast of the energy sector development globally and in the Russian Federation up to 2040. Moscow, Energy Research Institute of the Russian Academy of Sciences, 2014, 170 p. (In Russ.).
2. Zaitsev A.S., Taburchinov R.I., Ozerova I.P. et al. Allothermal gasification of peat and lignite by a focused light flow. Applied Sciences (Switzerland), 2020, (10), 126665.
3. Vershinina K.Y., Dorokhov V.V., Nyashina G.S. & Romanov D.S.Environmental Aspects and Energy Characteristics of the Combustion of Composite Fuels Based on Peat, Oil, and Water.Solid Fuel Chemistry, 2019, (5), pp. 294-302.
4. Makhova A.V. & Nelipa A.V. Analysis and prospects for the use of alternative energy sources in the Russian Federation in 2014-2024. Evrazijskij soyuz uchyonyh, 2018, (3-4), pp. 41-44. (In Russ.).
5. Lebedeva E.A. Challenges in combustion of fuel mixtures of variable composition. Sovremennye naukoyomkie tehnologii, 2019, (3), pp. 48-53. (In Russ.).
6. Mrakin A.N. & Sotnikov D.G. Assessment of the fuel efficiency of energy-chemical facilities with gasification of raw hydrocarbons. Nauchno-tekhnicheskie problemy sovershenstvovaniya i razvitiya sistem gazoehnergosnabzheniya, 2019, (1), pp. 162-165. (In Russ.).
7. Ridwan I., Chinwanitcharoen C. & Tamura K.A new biodiesel production by water addition to supercritical tert-butyl methyl ether using a plug flow reactor.Fuel, 2021, (305), 121512.
8. Dorzheyev A.A. & Grishchenko S.V. Production of ethyl esters from rapeseed oil of the Reliable-92 grade. Challenges of contemporary agrarian science: Proceedings of the International Conference, 2020, (4), pp. 161-165. (In Russ.).
9. Kuznetsov B.N. Catalytic methods in coal processing to syn-gas, carboneous and liquid fuels contributing to sustainable development.International Journal of Hydrogen Energy, 2009, (16), pp. 7057-7063.
10. Afanasiev V.V., Kovalev V.G. & Tarasov V.A. Selection of power supply circuits for solid fuel electro-thermal gasification units. Elektrotehnika, 2020, (8), pp. 17-22. (In Russ.).
11. GOST R 53457-2009. Rapeseed oil. Specifications. Moscow, Standartinform Publ., 2011, 21 p. (In Russ.).
12. Zavorin, A.S., Solomatov V.V., Tabakaev R.B. & Karelin V.A.Investigation of the elemental and technical composition and thermophysical properties of coal samples from the Talovsky deposit of Siberia.Journal of Physics: Conference Series, 2018, (1128), 143021.
13. Aleshina A.S. & Sergeyev V.V. Gasification of solid fuels. St. Petersburg, Polytechnic University Publ., 2010, 202 p. (In Russ.).
Acknowledgements
The study was conducted under Project 1.0031.GZB.2020 GZ 'Science' at Tomsk Polytechnic University.
For citation
Egorov R.I. & BelonogovM.V. High-temperature conversion of lignite and rapeseed oil mixtures. Ugol’, 2023, (1), pp. 56-61. (In Russ.). DOI: 10.18796/0041-5790-2023-1-56-61.
Paper info
ReceivedAugust 10, 2022
Reviewed November 30, 2022
Accepted December 26, 2022
