COMBUSTION OF COAL AND ALTERNATIVE FUELS IN OXY-FUEL ATMOSPHERE
Wojciech Moroń
wojciech.moron@pwr.edu.plWrocław University of Technology, Faculty of Mechanical and Power Engineering, Institute of Power Engineering and Fluid Mechanics (Poland)
Krzysztof Czajka
Wrocław University of Technology, Faculty of Mechanical and Power Engineering, Institute of Power Engineering and Fluid Mechanics (Poland)
Anna Kisiela
Wrocław University of Technology, Faculty of Mechanical and Power Engineering, Institute of Power Engineering and Fluid Mechanics (Poland)
Abstract
In this paper, results of fuel behavior during combustion of coal and alternative fuels in oxy-fuel atmosphere are presented. The objective of this work was to evaluate the dependencies between properties (ignition, explosion parameters, emissions of NOx and SO2) of coal and alternative fuels. The exchange of air for recycled flue gas and oxygen mixture, leads to changes of combustion behavior i.e. lower emission of NOx, SO2 and increased ignition delay time. Nevertheless, performed experiments do not indicate significant differences in explosion parameters among different fuels at air and 30%O2/70%CO2 atmosphere.
Keywords:
ignition, emission, oxy atmosphereReferences
Edge P., Gharebaghi M., Irons R., Porter R., Porter R.T.J., Pourkashanian M., Smith D., Stephenson P., Williams A.: Combustion modelling opportunities and challenges for oxy-coal carbon capture technology. Chemical Engineering Research and Design 89, 2011, 1470-1493.
Google Scholar
Hu Y., Naito S., Kobayashi N., Hasatani M.: CO2, NOx and SO2 emissions from the combustion of coal with high oxygen concentration gases. Fuel, 2000, 79, 1925-1932.
Google Scholar
Man C.K., Gibbins J.R.: Factors affecting coal particle ignition under oxyfuel combustion atmospheres. Fuel, 90, 2011, 294-304.
Google Scholar
Norman F., Berghmans J., Verplaetsen F.: The dust explosion characteristics of coal dust in an oxygen enriched atmosphere. Procedia Engineering, 45, 2012, 399-402.
Google Scholar
Normann F., Andersson K., Leckner B., Johnsson F.: Emission control of nitrogen oxides in the oxy-fuel process. Progress in Energy and Combustion Science, 2009, 35, 385-397.
Google Scholar
Qiao Y., Zhang L., Binner E., Xu M., Li C-Z.: An investigation of the causes of the difference in coal particle ignition temperature between combustion in air and in O2/CO2. Fuel 2010, 89, 3381-3387.
Google Scholar
Scheffknecht G., Al-Makhadmeh L., Schnell U., Maier J.: Oxy-fuel coal combustion – A review of the current state-of-art. International Journal of Greenhouse Gas Control 5S, 2011, 16-35.
Google Scholar
Shaddix C.R., Molina A.: Particle imaging of ignition and devolatilization of pulverized coal during oxy-fuel combustion. Proceedings of the Combustion Institute 2009, 32, 2091-2098.
Google Scholar
Strömberg L., Lindgren G., Jacoby J., Giering R., Anheden M., Burchhardt U.: Update on Vattenfal’s 30 MWth oxyfuel pilot plant in Schwarze Pumpe. Energy Procedia, 2009, 1, 581-589.
Google Scholar
Toftegaard M., Brix J., Jensen P., Glarborg P., Jensen A.: Oxy – fuel combustion of solid fuels. Progress in Energy and Combustion Science, 2010, 36, 581-625.
Google Scholar
Wall T., Liu Y., Spero C., Elliott L., Khare S., Rathnam R., Zeenathal F., Moghtaderi B., Buhre B., Sheng C., Gupta R., Yamada T., Makino K., Yu J.,: An overview on oxyfuel coal combustion—state of the art research and technology development. Chem. Eng. Res. Des., 2009, 87, 8, 1003-1016.
Google Scholar
Authors
Wojciech Morońwojciech.moron@pwr.edu.pl
Wrocław University of Technology, Faculty of Mechanical and Power Engineering, Institute of Power Engineering and Fluid Mechanics Poland
Authors
Krzysztof CzajkaWrocław University of Technology, Faculty of Mechanical and Power Engineering, Institute of Power Engineering and Fluid Mechanics Poland
Authors
Anna KisielaWrocław University of Technology, Faculty of Mechanical and Power Engineering, Institute of Power Engineering and Fluid Mechanics Poland
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