Volume 9, Issue 2 2000838
Research Article

Optimization and Analysis of Minimizing Exergy Loss in Ironmaking System

Jianfei He

Jianfei He

SEP Key Laboratory of Eco-Industry, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

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Weilong Zhang

Weilong Zhang

Steelmaking Plant, Shougang Jingtang Iron & Steel Co., Ltd., Tangshan, Hebei, 063200 P. R. China

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Hongming Na

Hongming Na

SEP Key Laboratory of Eco-Industry, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

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Jingchao Sun

Jingchao Sun

SEP Key Laboratory of Eco-Industry, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

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Yuxing Yuan

Yuxing Yuan

SEP Key Laboratory of Eco-Industry, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

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Ziyang Qiu

Ziyang Qiu

SEP Key Laboratory of Eco-Industry, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

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Tianyi Yan

Tianyi Yan

SEP Key Laboratory of Eco-Industry, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

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Tao Du

Corresponding Author

Tao Du

SEP Key Laboratory of Eco-Industry, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819 P. R. China

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First published: 19 December 2020
Citations: 8

Abstract

Application of energy saving and consumption reduction technologies in the iron and steel industry (ISI) is an effective way to achieve sustainable development. As the highly energy-consuming ironmaking system is an important part of steel production, reducing its exergy loss is of great significance for overall energy saving in ISI. The optimization model of the ironmaking system is established in this study based on the law of conservation of mass and the second law of thermodynamics. For the target of minimum exergy loss, material and energy systems of ironmaking are optimized and analyzed. Factors that influence the ironmaking system are further discussed. The results show that the minimum exergy loss of the ironmaking system is 4605.80 MJ t-HM−1 by improving operation conditions. Among them, 51.15% of the total exergy loss is contributed by the blast furnace ironmaking process.

Conflict of Interest

The authors declare no conflict of interest.

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