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Received April 2, 2020
Accepted June 8, 2020
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Numerical study of oxy-fuel combustion behaviors in a 2MWe CFB boiler
Department of Mineral Resources and Energy Engineering, Jeonbuk National University, 567, Bakje-daero, Jeonju-si, Jeollabuk-do 54896, Korea 1Environment System Research Division, Korea Institute of Machinery and Materials, 156, Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Korea
kr
Korean Journal of Chemical Engineering, November 2020, 37(11), 1878-1887(10), 10.1007/s11814-020-0611-5
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Abstract
Using modified IEA-CFBC(International Energy Association-Circulating fluidized bed combustion) model, a 2MWe oxy-fuel CFBC boiler is simulated and analyzed as a promising solution to reduce greenhouse gas emission from coal power plants. This study evaluated and compared the oxy-combustion characteristics of various coals. Also, the effects of CO2 concentration (71-79 vol%), bed temperature (850 °C) and coal properties on combustion efficiencies, CO2 concentration, acid gas emissions were analyzed. Because of their higher N2 and S content, sub-bituminous and bituminous coals were found to have SOx and NOx concentrations higher than those of anthracite. These simulation results from Oxy-fuel CFBC simulation of various coals can be used as operating parameters for design and development of commercial Oxy-fuel CFBC boilers.
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Faghri A, Zhang Y, Transport phenomena in multiphase systems, Elsevier, Amsterdam (2006).
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Sporl R, Paneru M, Babat S, Stein-Brzozowska G, Maier J, Scheffknecht G, Fuel Process. Technol., 141, 258 (2016)
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