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Thermodynamics and Kinetics of Coke Breeze Combustion Under Different Oxygen Content in the Sintering Process

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Materials Processing Fundamentals 2023 (TMS 2023)

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

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Abstract

In order to investigate the influence of oxygen content in sintering flue gas on the heat generated by coke combustion and sintering flue gas, the thermodynamic calculation was carried out with FactSage software. Combustion kinetics under different oxygen content was studied with thermogravimetric analyzer. Thermodynamic research results showed that under the condition of sintering with iron ore fines, the oxygen content in the combustion-supporting air was abundant. When the oxygen content was more than 7%, the solid fuel in the sintered layer could meet the combustion conditions and release all the heat. Kinetic experiment results showed that the combustion rate of coke breeze in 5 min with 13% oxygen content in flue gas was equivalent to combustion rate of coke breeze in 2.75 min 21% oxygen content in flue gas. The research is helpful for energy recovery of sintering process and reducing carbon emission of blast furnace ironmaking.

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Author information

Authors and Affiliations

  1. Beijing Key Laboratory of Green Recyclable Process for Iron and Steel Production Technology, Beijing, 100043, China

    Dongqing Wang, Wen Pan, Zhixing Zhao & Yapeng Zhang

  2. Institute of Iron and Steel Department, Research Institute of Technology, Shougang Group Corporation, Beijing, 100043, China

    Dongqing Wang, Wen Pan, Zhixing Zhao & Yapeng Zhang

Authors
  1. Dongqing Wang
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  2. Wen Pan
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  3. Zhixing Zhao
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  4. Yapeng Zhang
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Corresponding author

Correspondence to Dongqing Wang .

Editor information

Editors and Affiliations

  1. Oculatus Consulting, Marietta, GA, USA

    Samuel Wagstaff

  2. Gopher Resource, Tampa, FL, USA

    Alexandra Anderson

  3. Oak Ridge National Laboratory, Oak Ridge, TN, USA

    Adrian S. Sabau

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© 2023 The Minerals, Metals & Materials Society

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Wang, D., Pan, W., Zhao, Z., Zhang, Y. (2023). Thermodynamics and Kinetics of Coke Breeze Combustion Under Different Oxygen Content in the Sintering Process. In: Wagstaff, S., Anderson, A., Sabau, A.S. (eds) Materials Processing Fundamentals 2023. TMS 2023. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-22657-1_4

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