Mineral matter transformation in oxy-fuel coal combustion

• Autorzy: Nowak-Woźny D. , Moroń W. , Urbanek B. , Rybak W.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of the mechanical, electrical, CCSEM and XRD measurements of hard coal, conducted in simulated conditions of sintering in atmospheres of O2/CO2,. The changes of the coal ash resistivity are correlated with the content of the oxides and with the sintering temperature determined by the mechanical test and Leitz method. The SEM-EDS analysis was conducted for deposits on the probe. The changes of the measured ash samples, observed during sintering process in O2/CO2 atmosphere, were discussed in the ash microstructure point of view.

Słowa kluczowe

EN

coal combustion; ash; slagging; sintering

PL

spalanie węgla; popiół; żużlowanie; spiekanie

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2013
• Tom: Vol. 34, nr 3
• Strony: 393--401
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Nowak-Woźny D.

• Wrocław University of Technology, Department of Mechanical and Power Engineering, Energy Engineering and Technology Division, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Moroń W.

• Wrocław University of Technology, Department of Mechanical and Power Engineering, Energy Engineering and Technology Division, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Urbanek B.

• Wrocław University of Technology, Department of Mechanical and Power Engineering, Energy Engineering and Technology Division, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Rybak W.

• Wrocław University of Technology, Department of Mechanical and Power Engineering, Energy Engineering and Technology Division, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Bibliografia

• 1. Ahn Y.C., Lee J.K., 2006. Physical, chemical and electrical analysis of aerosol particles generated from industrial plants. Aerosol Sci., 37, 187-202. DOI: 10.1016/j.jaerosci.2005.04.008.
• 2. Frenkel J.J., 1945. Viscous flow of crystalline bodies under the action of surface tension. J. Physics, 9, 385-391.
• 3. Gupta R.P., Wall T.F., Kkajigaya L., Miyamae Y., 1998. Computer-controlled scanning electron microscopy of minerals in coal-implications for ash deposition. Prog. Energy Combust. Sci., 24, 6, 523-543. DOI: 10.1016/S0360-1285(98)00009-4.
• 4. Moroń W., Rybak W., 2002. Mechanical method for determining the ash sintering temperature. Energetyka 2002. Science and Technology Conference. Wrocław, 6-8 November 2002. Wrocław University of Technology, 503-508.
• 5. Płaza P., Ferens W., Rybak W., 2006. Pressure method for determining the ash sintering temperature. Systems, 11, 517-524.
• 6. Raask E., 1979. Sintering characteristics of coal ashes by simultaneous dilatometry-electrical conductance measurements. J. Therm. Anal., 16, 91-102.
• 7. Wall T., Yinghui L., Spero C., Elliott L., Khare S., Rathnam R., Zeenathal F., Moghtaderi B., Buhre B., Sheng C., Gupta R., Yamada T., Makino K., Yu Jianglong, 2009. An overview on oxyfuel coal combustion-State of the art research and technology development. Chem. Eng. Res. Des., 87, 1003-1016. DOI: 10.1016/j.cherd.2009.02.005.
• 8. Werther J., Ogada T., 1999. Sewage sludge combustion. Prog. Energy Combust. Sci., 25, 55-116. DOI: 10.1016/S0360-1285(98)00020-3.
• 9. Wang Ch., Jia L., Tan Y., Anthoney J., 2008. Carbonation of fly ash in oxy-fuel CFB combustion. Fuel, 87, 1108–1114. DOI: 10.1016/j.fuel.2007.06.024.
• 10. Zhang L., Ito M., Sato A., Ninomia Y., Sakano Ch., Masumi M., Shang L., 2004. Combustibility of dried sewage sludge and its mineral transformation at different oxygen content in drop tube furnace. Fuel Process. Technol., 85, 983–1011. DOI: 10.1016/j.fuproc.2003.10.021.