Numerical study of oxy-fuel combustion behaviors in a 2MWe CFB boiler

You Ra Gwak; Jin Han Yun; Sang In Keel; See Hoon Lee

Korean Journal of Chemical Engineering, Vol.37, No.11, 1878-1887, November, 2020

DOI10.1007/s11814-020-0611-5 Export Citation

Numerical study of oxy-fuel combustion behaviors in a 2MWe CFB boiler

You Ra Gwak, Jin Han Yun^{1, †}, Sang In Keel¹, and See Hoon Lee^†

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

E-mail:,

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.

Keywords:Circulating Fluidized Bed;Oxy Combustion;Anthracite;Coal;Computational Simulation

[References]

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[Referenced By]

[1] Lee SH, Lee TH, Jeong SM, Lee JM, Renew. Energy, 138, 121 (2019)

[2] BP energy outlook: 2018 edition, www.bp.com/energyoutlook. (Accessed February 10, 2020).

[3] Gwak YR, Kim YB, Gwak IS, Lee SH, Fuel, 213, 115 (2018)

[4] Moon JH, Jo SH, Mun TY, Park SJ, Kim JY, Khoi NH, Lee JG, Korean Chem. Eng. Res., 57(3), 400 (2019)

[5] Gwak IS, Gwak YR, Kim YB, Lee SH, J. Ind. Eng. Chem., 58, 154 (2018)

[6] Gwak YR, Kim YB, Keel SI, Yun JH, Lee SH, Korean Chem. Eng. Res., 56(5), 631 (2018)

[7] Lee JM, Kim DW, Kim JS, Na JG, Lee SH, 35, 2814 (2010).

[8] Stec M, Czaplicki A, Tomaszewicz G, Słowik K, Korean J. Chem. Eng., 35(1), 129 (2018)

[9] Lee DY, Ryu HJ, Shun DW, Bae DH, Baek JI, Korean J. Chem. Eng., 35(6), 1257 (2018)

[10] Moon JH, Jo SH, Park SJ, Khoi NH, Seo MW, Ra HW, Yoon SJ, Yoon SM, Lee JG, Mun TY, Energy, 166, 183 (2019)

[11] Lupion M, Alvarez I, Otero P, Kuivalainen R, Lantto J, Hotta A, Hack H, Energy Procedia, 37, 6179 (2013)

[12] Mathekga H. I., Oboirien B. O., North B. C., Int. J. Energy Res., 40(7), 878 (2016)

[13] Jia L, Tan Y, McCalden D, Wu Y, He I, Symonds R, Anthony EJ, Int. J. Green Gas Control, 7, 240 (2012)

[14] Duan LB, Sun HC, Zhao CS, Zhou W, Chen XP, Fuel, 127, 47 (2014)

[15] Li SY, Li W, Xu MX, Wang X, Li HY, Lu QG, Fuel, 146, 81 (2015)

[16] Tan Y, Jia L, Wu Y, Anthony EJ, Appl. Energy, 92, 343 (2012)

[17] Diez LI, Lupianez C, Guedea I, Bolea I, Romeo LM, Fuel Process. Technol., 139, 196 (2015)

[18] Yang C, Kim Y, Bang B, Jeong S, Moon J, Mun TY, Jo s, Lee J, Lee U, Fuel, 267, 117206 (2020)

[19] Hannes JP, Mathematical modeling of circulating fluidized bed combustion, PhD Thesis, Delft University of Technology, The Netherlands (1996).

[20] Lee JM, Kim JS, Kim JJ, Energy, 28(6), 575 (2003)

[21] Seddighi S, Pallares D, Johnsson F, One-dimensional modeling of oxy fuel fluidized bed combustion for CO2 capture, ECI Digital Archives (2010).

[22] Jayarathna CK, Moldestad BE, Tokheim LA, Linkoping Electronic conference proceedings, Iceland, 76-82 (2017).

[23] Kallio S, et al.,Proceedings of Finnish-Swedish Flame Days (2009). http://www.ffrc.fi/FlameDays_2009/3A/KallioPaper.pdf.

[24] Wu Y, Liu D, Zheng D, Ma J, Duan L, Chen X, Fuel Process. Technol., 195, 106129 (2019)

[25] Amoo LM, Fuel, 140, 178 (2015)

[26] Wu Y, Liu DY, Duan LB, Ma JL, Xiong J, Chen XP, Fuel, 216, 596 (2018)

[27] Crane Company, Flow of fluids through valves, fittings, and pipe, Technical Paper, Connecticut (1988).

[28] Weast RC, CRC handbook of chemistry and physics, Chemical Rub-ber Company, Florida (1954).

[29] Lemmon EW, Jacobsen RT, Int. J. Thermophys., 25, 21 (2004)

[30] Faghri A, Zhang Y, Transport phenomena in multiphase systems, Elsevier, Amsterdam (2006).

[31] Incropera FP, DeWitt DP, Bergman TL, Lavine AS, Fundamentals of heat and mass transfer, 6th Ed., John Wiley & Sons, New York (2007).

[32] Future Energy Plant, https://www.kier.re.kr/fep. (Accessed March 20, 2020).

[33] Stanger R, Wall T, Sporl R, Paneru M, Grathwohl S, et al., Int. J. Greenh. Gas Control, 40, 55 (2015)

[34] Gungor A, Fuel, 87(7), 1083 (2008)

[35] Gyulmaliev AM, Shpirt MY, Solid Fuel Chem., 42, 263 (2008)

[36] Komorowsk M, Nowak W, The 14th international conference on fluidization-from fundamentals to products, ECI Symposium Series, (2013). http://dc.engconfintl.org/fluidization_xiv/32.

[37] Bu CS, Gomez-Barea A, Chen XP, Leckner B, Liu DY, Pallares D, Lu P, Appl. Energy, 177, 247 (2016)

[38] Sporl R, Paneru M, Babat S, Stein-Brzozowska G, Maier J, Scheffknecht G, Fuel Process. Technol., 141, 258 (2016)

[39] El Sheikh K, Khan MJH, Hamid MD, Shrestha S, Ali BS, Ryabov GA, Dolgushin LA, Hussain MA, Bukharkina TV, Gorelova EA, Chin. J. Chem. Eng., 27(2), 426 (2019)