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Life Cycle Assessment and Environmental Impact Evaluation of CCU Technology Schemes in Steel Plants

Author

Listed:
  • Chaoke Yu

    (State Environmental Protection Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China)

  • Yingnan Li

    (Institute for Frontier Technologies of Low-Carbon Steelmaking, Northeastern University, Shenyang 110819, China)

  • Lulin Wang

    (State Environmental Protection Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China)

  • Yifan Jiang

    (State Environmental Protection Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China)

  • Siyi Wang

    (State Environmental Protection Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China)

  • Tao Du

    (State Environmental Protection Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China
    Liaoning Province Engineering Research Center for Technologies of Low-Carbon Steelmaking, Northeastern University, Shenyang 110819, China)

  • Yisong Wang

    (State Environmental Protection Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China
    Engineering Research Center of Frontier Technologies for Low-Carbon Steelmaking (Ministry of Education), Shenyang 110819, China)

Abstract

Greenhouse gas emissions are significant contributors to global warming, and steel enterprises need to find more efficient and environmentally friendly solutions to reduce CO 2 emissions while maintaining high process efficiency and low production costs. Carbon capture and utilization (CCU) is a promising approach which can convert captured CO 2 into valuable chemicals, reducing dependence on fossil fuels and mitigating climate change. This study uses life cycle assessment (LCA) to compare the environmental impacts of BF-BOF steel plants with and without CCU. When evaluating seven scenarios, including three carbon capture and two carbon utilization technologies, against a baseline, the results demonstrate significant environmental benefits from implementing CCU technologies. Although the activated carbon TSA route for CO 2 -based methanol production showed good environmental performance, its toxicity risks highlight the advantages of combining TSA with steel slag carbonation as a better non-toxic solution.

Suggested Citation

  • Chaoke Yu & Yingnan Li & Lulin Wang & Yifan Jiang & Siyi Wang & Tao Du & Yisong Wang, 2024. "Life Cycle Assessment and Environmental Impact Evaluation of CCU Technology Schemes in Steel Plants," Sustainability, MDPI, vol. 16(23), pages 1-17, November.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:23:p:10207-:d:1526620
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    References listed on IDEAS

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