RESEARCH OF THE INFLUENCE OF PHYSICAL AND CHEMICAL PROPERTIES OF COAL ON THE GASIFICATION PROCESS USING THE EXAMPLE OF ANGREN BROWN COAL

Kavkatbekov  Murodzhon  Mamitbekovich; Babakhodzhaev  Rakhimzhan  Pachekhanovich

The influence of the properties of Angren brown on the process of layered gasification
was studied. The dependence of the calorific value of the resulting gas on the quality characteristics of
coal when using air as a gasifying agent has been established. Methods are shown for increasing the
calorific value of gas obtained during the gasification process when using coal with different moisture
content and different fractional composition. The features of technological processes in the reaction
zones of a laboratory gas generator have been studied. Based on generally accepted methods, the
volume fractions of flammable components, as well as the non-flammable part of the generator gas,
were determined. The slag formation temperature for Angren brown coal was experimentally
determined. The qualitative characteristics of the resulting generator gas were compared with the gas
from the underground gasification of coal of Yerostigaz JSC.

Название журналаTechnical science and innovation
Номер выпуска2024 №2
Количество просмотров 54

Ссылка в интернете

DOI

Дата создание в систему UzSCI 14-08-2024

Количество прочтений 54

Дата публикации 14-08-2024

Язык статьиIngliz

Страницы14-18

Ключевые слова

brown coal

coal ash content

Gasification

air blast

coal moisture content

English

The influence of the properties of Angren brown on the process of layered gasification
was studied. The dependence of the calorific value of the resulting gas on the quality characteristics of
coal when using air as a gasifying agent has been established. Methods are shown for increasing the
calorific value of gas obtained during the gasification process when using coal with different moisture
content and different fractional composition. The features of technological processes in the reaction
zones of a laboratory gas generator have been studied. Based on generally accepted methods, the
volume fractions of flammable components, as well as the non-flammable part of the generator gas,
were determined. The slag formation temperature for Angren brown coal was experimentally
determined. The qualitative characteristics of the resulting generator gas were compared with the gas
from the underground gasification of coal of Yerostigaz JSC.

Ключевые слова

brown coal

coal ash content

Gasification

air blast

coal moisture content

№ Имя автора Должность Наименование организации

1 Kavkatbekov .M. PhD TDTU

2 Babakhodzhaev R.P. DSc, Professor, TDTU

№ Название ссылки

1 1. Plakitkina L.S. (2015). Development of the coal industry in the republics of Central Asia in the post-Soviet period and trends in their future development. Coal. 69– 72. 2. Rakhmonov Kh.G., Tilloev L.I., Khaitov R.R. (2020). Determination of physical and mechanical properties and chemical composition of coals of the Angren deposit. Universum. 11 (80). 3. Filimonov A.Y. (2012). Economic justification for the creation of efficient energy-coal complexes. PhD dis. 140 p. 4. Doniyarov N.A., Namazov S.Z., Jumaev M.K. (2019). Studying the possibility of enriching high-ash coal from the Angrensky open-pit mine using the gravity method. Universum.12 (69). 5. Belavkin I.V., Kazarinov L.S. (2013). Optimization of power boiler modes when burning renewable energy sources. Bulletin of SUSU. 13 (2). 25-32. 6. Buyantuev S.L., Shishulkin S.Y., Starinsky I.V., Kondratenko A.S., Khmelev A.B., Bazarsadaev E.Ts. (2016). Economic assessment of the conversion of a solid fuel heating boiler to combustion of generator gas. Bulletin of the BSU. 3. 144-148.

2 7. Buyantuev S.L., Shishulkin S.Y. (2014). Prospects and problems of using coal gas generators to generate thermal energy. Bulletin of VSGUTU. 6. 28-32. 8. Aleshina A. S., Sergeev V. V. (2010). Gasification of solid fuel. Publishing House of Polytechnic University. 202 p. 9. M.V. Savina, S.S. Timofeeva. (2021). Development of a scheme for using generator gas from low-grade coal in SGU. Bulletin of KSEU. 75-89. 10. Knorre G.F. (1959). Furnace processes. Gosenergoizdat. 396 p. 11. Lavrov N.V. (1957). Physico-chemical principles of combustion and gasification of fuel. Metallurgizdat. 288 p. 12. G.-D. Schilling, B. Bonn, W. Kraus. (1986). Gasification of coal. Nedra. 175 p. 13. Falbe Y. (1980). Chemicals from coal. Chemistry. 616 p. 14. Mishra A., Gautam S., Sharma T. (2018). Effect of operating parameters on coal gasification. International Journal of Coal Science & Technology. 5. 13–125.

3 15. Sokolinskii S.M., Khudyakov Y., Lapidus D.A. (2020). Calculation of a Direct Flow Coal Gasification Process with Liquid Slag Removal. Solid Fuel Chemistry. 269-273. doi:10.3103/S0361521920050092. 16. Cong W., Alade OS, Sasaki K, Sugai Y. (2018). Experimental and simulation studies on gasification characteristics of a lowrank coal by rapid heating under CO2 rich condition. J. appl. res. technol. 16 (4). 17. Kuznetsov N.V., Mitor V.V., Dubovsky I.E., Karasina E.S. (1998). Thermal calculation of boilers. Normative method. Energy. 259 p. 18. Kavkatbekov M.M., Babakhodzhaev R.P. (2023). Research on the gasification process of high-ash Angren brown coal at an experimental installation. Collection of publications of the international scientific conference “Modern problems and solutions in the development of information technologies and economic sectors in the fields of nanophysics and photoenergy. 49- 52. 19. ISO 6974-3:2018. Natural gas. Determination of composition and associated uncertainty by gas chromatography

4 20. ISO 6976:2016. Natural gas. Calculation of calorific value, density, relative density and Wobbe indexes by composition. 21. Svishchev D.A. (2019). Thermodynamic analysis and study of the mechanism of layered inverse gasification of biomass. PhD dis.142 p. 22. Podlesny D.N. (2018). Filtration combustion of bidisperse fuel systems and highly dispersed fuels. PhD dis. 112 p. 23. A. Saravanakumar [et al.]. (2007). Experimental investigation and modeling study of long stick wood gasification in a top lit updraft fixed bed gasifier. Fuel. 86 (17). 2846-2856. 24. I.De Bari [et al.]. (2000). Air Gasification of Biomass in a Downdraft Fixed Bed: A Comparative Study of the Inorganic and Organic Products Distribution. Energy & Fuels. 14 (4). 889-898. 25. A. Moilanen, J. Vepsalainen, E. Kurkela. (2006). Gasification reactivity of large biomass pieces. Science in thermal and chemical biomass conversion. 509- 518.

5 26. C. Fushimi [et al.]. (2003). Effect of Heating Rate on Steam Gasification of Biomass. 1. Reactivity of Char. Industrial & Engineering Chemistry Research. 42 (17).3922-3928. 27. Yusupov T.S., Shumskaya L.G., Burdukov A.P. Logvinenko V.A. (2011). Reactivity of coals at various stages of metamorphism in processes of thermal-oxidative destruction. Chemistry for Sustainable Development. 19 (4). 427–432. 28. Patrakov Y.F., Semenova S.A., Fedorova N.I. (2008). The influence of various methods of modifying brown coal on changes in its chemical composition and behavior during pyrolysis. Bulletin of Kuzbass State Technical University. 31–34. 29. Raimzhanov B. R., Yakubov S. I. (2006). On the issue of increasing the efficiency of CCGT technology at the Angren Yerostigaz station. Modern equipment and technology of the mining and metallurgical industry and ways of their development. 16–19.

В ожидании

№	Имя автора	Должность	Наименование организации
1	Kavkatbekov .M.	PhD	TDTU
2	Babakhodzhaev R.P.	DSc, Professor,	TDTU

№	Название ссылки
1	1. Plakitkina L.S. (2015). Development of the coal industry in the republics of Central Asia in the post-Soviet period and trends in their future development. Coal. 69– 72. 2. Rakhmonov Kh.G., Tilloev L.I., Khaitov R.R. (2020). Determination of physical and mechanical properties and chemical composition of coals of the Angren deposit. Universum. 11 (80). 3. Filimonov A.Y. (2012). Economic justification for the creation of efficient energy-coal complexes. PhD dis. 140 p. 4. Doniyarov N.A., Namazov S.Z., Jumaev M.K. (2019). Studying the possibility of enriching high-ash coal from the Angrensky open-pit mine using the gravity method. Universum.12 (69). 5. Belavkin I.V., Kazarinov L.S. (2013). Optimization of power boiler modes when burning renewable energy sources. Bulletin of SUSU. 13 (2). 25-32. 6. Buyantuev S.L., Shishulkin S.Y., Starinsky I.V., Kondratenko A.S., Khmelev A.B., Bazarsadaev E.Ts. (2016). Economic assessment of the conversion of a solid fuel heating boiler to combustion of generator gas. Bulletin of the BSU. 3. 144-148.
2	7. Buyantuev S.L., Shishulkin S.Y. (2014). Prospects and problems of using coal gas generators to generate thermal energy. Bulletin of VSGUTU. 6. 28-32. 8. Aleshina A. S., Sergeev V. V. (2010). Gasification of solid fuel. Publishing House of Polytechnic University. 202 p. 9. M.V. Savina, S.S. Timofeeva. (2021). Development of a scheme for using generator gas from low-grade coal in SGU. Bulletin of KSEU. 75-89. 10. Knorre G.F. (1959). Furnace processes. Gosenergoizdat. 396 p. 11. Lavrov N.V. (1957). Physico-chemical principles of combustion and gasification of fuel. Metallurgizdat. 288 p. 12. G.-D. Schilling, B. Bonn, W. Kraus. (1986). Gasification of coal. Nedra. 175 p. 13. Falbe Y. (1980). Chemicals from coal. Chemistry. 616 p. 14. Mishra A., Gautam S., Sharma T. (2018). Effect of operating parameters on coal gasification. International Journal of Coal Science & Technology. 5. 13–125.
3	15. Sokolinskii S.M., Khudyakov Y., Lapidus D.A. (2020). Calculation of a Direct Flow Coal Gasification Process with Liquid Slag Removal. Solid Fuel Chemistry. 269-273. doi:10.3103/S0361521920050092. 16. Cong W., Alade OS, Sasaki K, Sugai Y. (2018). Experimental and simulation studies on gasification characteristics of a lowrank coal by rapid heating under CO2 rich condition. J. appl. res. technol. 16 (4). 17. Kuznetsov N.V., Mitor V.V., Dubovsky I.E., Karasina E.S. (1998). Thermal calculation of boilers. Normative method. Energy. 259 p. 18. Kavkatbekov M.M., Babakhodzhaev R.P. (2023). Research on the gasification process of high-ash Angren brown coal at an experimental installation. Collection of publications of the international scientific conference “Modern problems and solutions in the development of information technologies and economic sectors in the fields of nanophysics and photoenergy. 49- 52. 19. ISO 6974-3:2018. Natural gas. Determination of composition and associated uncertainty by gas chromatography
4	20. ISO 6976:2016. Natural gas. Calculation of calorific value, density, relative density and Wobbe indexes by composition. 21. Svishchev D.A. (2019). Thermodynamic analysis and study of the mechanism of layered inverse gasification of biomass. PhD dis.142 p. 22. Podlesny D.N. (2018). Filtration combustion of bidisperse fuel systems and highly dispersed fuels. PhD dis. 112 p. 23. A. Saravanakumar [et al.]. (2007). Experimental investigation and modeling study of long stick wood gasification in a top lit updraft fixed bed gasifier. Fuel. 86 (17). 2846-2856. 24. I.De Bari [et al.]. (2000). Air Gasification of Biomass in a Downdraft Fixed Bed: A Comparative Study of the Inorganic and Organic Products Distribution. Energy & Fuels. 14 (4). 889-898. 25. A. Moilanen, J. Vepsalainen, E. Kurkela. (2006). Gasification reactivity of large biomass pieces. Science in thermal and chemical biomass conversion. 509- 518.
5	26. C. Fushimi [et al.]. (2003). Effect of Heating Rate on Steam Gasification of Biomass. 1. Reactivity of Char. Industrial & Engineering Chemistry Research. 42 (17).3922-3928. 27. Yusupov T.S., Shumskaya L.G., Burdukov A.P. Logvinenko V.A. (2011). Reactivity of coals at various stages of metamorphism in processes of thermal-oxidative destruction. Chemistry for Sustainable Development. 19 (4). 427–432. 28. Patrakov Y.F., Semenova S.A., Fedorova N.I. (2008). The influence of various methods of modifying brown coal on changes in its chemical composition and behavior during pyrolysis. Bulletin of Kuzbass State Technical University. 31–34. 29. Raimzhanov B. R., Yakubov S. I. (2006). On the issue of increasing the efficiency of CCGT technology at the Angren Yerostigaz station. Modern equipment and technology of the mining and metallurgical industry and ways of their development. 16–19.