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Analysis of the flame formed during oxidation of pulverized coal by an O2 CO2 mixture

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  • Nozaki, Tomohiro
  • Takano, Shin-ichi
  • Kiga, Takashi
  • Omata, Kouji
  • Kimura, Naokazu

Abstract

Pulverized coal combustion with oxygen and recycled flue gas constitutes a promising system to recover CO2 from the exhaust gases of boilers. Our previous combustion tests on this system suggest emissions of smaller amounts of NOx than in conventional combustion and reduced ignition stability of the burner. In order to improve the combustibility of the O2/CO2-pulverized-coal burner, numerical simulations and combustion tests were performed. An oxygen-injection nozzle was added to the burner. Simulation results predicted the effectiveness of direct oxygen injection and were confirmed qualitatively by bench-scale combustion tests on gas temperatures.

Suggested Citation

  • Nozaki, Tomohiro & Takano, Shin-ichi & Kiga, Takashi & Omata, Kouji & Kimura, Naokazu, 1997. "Analysis of the flame formed during oxidation of pulverized coal by an O2 CO2 mixture," Energy, Elsevier, vol. 22(2), pages 199-205.
    • Handle: RePEc:eee:energy:v:22:y:1997:i:2:p:199-205
    DOI: 10.1016/S0360-5442(96)00143-0
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    Cited by:

    1. Xiang Li & Yiqiang Pei & Dayou Li & Tahmina Ajmal & Khaqan-Jim Rana & Abdel Aitouche & Raouf Mobasheri & Zhijun Peng, 2021. "Effects of Water Injection Strategies on Oxy-Fuel Combustion Characteristics of a Dual-Injection Spark Ignition Engine," Energies, MDPI, vol. 14(17), pages 1-24, August.
    2. Tang, YuTing & Ma, XiaoQian & Lai, ZhiYi & Chen, Yong, 2013. "Energy analysis and environmental impacts of a MSW oxy-fuel incineration power plant in China," Energy Policy, Elsevier, vol. 60(C), pages 132-141.
    3. Mao, Zhihui & Zhang, Liqi & Zhu, Xinyang & Pan, Cong & Yi, Baojun & Zheng, Chuguang, 2016. "Modeling of an oxy-coal flame under a steam-rich atmosphere," Applied Energy, Elsevier, vol. 161(C), pages 112-123.
    4. Zhou, Kun & Lin, Qizhao & Hu, Hongwei & Hu, Huiqing & Song, Lanbo, 2017. "The ignition characteristics and combustion processes of the single coal slime particle under different hot-coflow conditions in N2/O2 atmosphere," Energy, Elsevier, vol. 136(C), pages 173-184.
    5. Hao Chen & Chenxi Wang & Xiang Li & Yongzhi Li & Miao Zhang & Zhijun Peng & Yiqiang Pei & Zhihao Ma & Xuewen Zhang & Peiyong Ni & Rohitha Weerasinghe & Raouf Mobasheri, 2023. "Quantitative Analysis of Water Injection Mass and Timing Effects on Oxy-Fuel Combustion Characteristics in a GDI Engine Fuelled with E10," Sustainability, MDPI, vol. 15(13), pages 1-17, June.
    6. Luo, Jianghui & Zou, Chun & He, Yizhuo & Jing, Huixiang & Cheng, Sizhe, 2019. "The characteristics and mechanism of NO formation during pyridine oxidation in O2/N2 and O2/CO2 atmospheres," Energy, Elsevier, vol. 187(C).
    7. Riaza, J. & Álvarez, L. & Gil, M.V. & Pevida, C. & Pis, J.J. & Rubiera, F., 2011. "Effect of oxy-fuel combustion with steam addition on coal ignition and burnout in an entrained flow reactor," Energy, Elsevier, vol. 36(8), pages 5314-5319.
    8. Warzecha, Piotr & Boguslawski, Andrzej, 2014. "LES and RANS modeling of pulverized coal combustion in swirl burner for air and oxy-combustion technologies," Energy, Elsevier, vol. 66(C), pages 732-743.
    9. Fan, Weidong & Li, Yu & Guo, Qinghong & Chen, Can & Wang, Yong, 2017. "Coal-nitrogen release and NOx evolution in the oxidant-staged combustion of coal," Energy, Elsevier, vol. 125(C), pages 417-426.
    10. Irfan, Muhammad F. & Usman, Muhammad R. & Kusakabe, K., 2011. "Coal gasification in CO2 atmosphere and its kinetics since 1948: A brief review," Energy, Elsevier, vol. 36(1), pages 12-40.
    11. Granados, D.A. & Chejne, F. & Mejía, J.M., 2015. "Oxy-fuel combustion as an alternative for increasing lime production in rotary kilns," Applied Energy, Elsevier, vol. 158(C), pages 107-117.

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