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8th International Symposium on High-Temperature Metallurgical Processing pp 335–346Cite as

Investigation on Coal Combustion Behaviors in the Oxygen Blast Furnace

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Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

The oxygen blast furnace is a new technology for ironmaking, where the oxygen and CO2-stripped blast furnace top gas are blown into the blast furnace replacing the conventional hot air. The oxygen blast furnace could reduce the consumption of coke and emission of carbon dioxide. In this chapter, a three-dimensional numerical model was developed to simulate the lance-blowpipe-tuyere-raceway region of a blast furnace, and the flow and combustion behaviors of coal particles were investigated based on an oxygen blast furnace. Compared with the traditional blast furnace, the combustion characteristics in the raceway of the oxygen blast furnace were different. In addition to the combustion of coal and coke, the combustion of large amounts of reducing gas was included. The coal combustion of different oxygen content (70, 80, 90, 100%) were investigated. The simulation results indicated that the coal burnout was only 21.64% at an oxygen content of 70%, a decrease of 51.52%, compared with a traditional blast furnace. The coal burnout was increased with the increase of oxygen content. When the oxygen content is 100%, the coal burnout was 90.38%, an increase of 17.22%.

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Author information

Authors and Affiliations

  1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, People’s Republic of China

    Zhenfeng Zhou, Yuanyuan Zhang, Guang Wang, Jingsong Wang & Qingguo Xue

Authors
  1. Zhenfeng Zhou
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  2. Yuanyuan Zhang
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  3. Guang Wang
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  4. Jingsong Wang
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  5. Qingguo Xue
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Corresponding author

Correspondence to Zhenfeng Zhou .

Editor information

Editors and Affiliations

  1. Michigan Technological University , Houghton, Michigan, USA

    Jiann-Yang Hwang

  2. Central South University , Changsha, Hunan, China

    Tao Jiang

  3. Proval Partners SA , Lausanne, Switzerland

    Mark William Kennedy

  4. Istanbul Technical University , Istanbul, Turkey

    Onuralp Yücel

  5. Dept of Materials Science and Eng, Carnegie Mellon Univ Dept of Materials Science and Eng, Pittsburgh, Pennsylvania, USA

    P. Chris Pistorius

  6. Universidade Federal de Minas Gerais , Belo Horizonte, Brazil

    Varadarajan Seshadri

  7. The University of Queensland , Brisbane, Australia

    Baojun Zhao

  8. RHI AG , Leoben, Austria

    Dean Gregurek

  9. Atilim University , Ankara, Turkey

    Ender Keskinkilic

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© 2017 The Minerals, Metals & Materials Society

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Cite this paper

Zhou, Z., Zhang, Y., Wang, G., Wang, J., Xue, Q. (2017). Investigation on Coal Combustion Behaviors in the Oxygen Blast Furnace. In: Hwang, JY., et al. 8th International Symposium on High-Temperature Metallurgical Processing. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51340-9_33

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