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CO2 mineralization and utilization by alkaline solid wastes for potential carbon reduction

Author

Listed:
  • Shu-Yuan Pan

    (National Taiwan University)

  • Yi-Hung Chen

    (National Taipei University of Technology)

  • Liang-Shih Fan

    (The Ohio State University)

  • Hyunook Kim

    (The University of Seoul)

  • Xiang Gao

    (Zhejiang University)

  • Tung-Chai Ling

    (Hunan University)

  • Pen-Chi Chiang

    (National Taiwan University)

  • Si-Lu Pei

    (China Tianying Inc.)

  • Guowei Gu

    (Tongji University)

Abstract

CO2 mineralization and utilization using alkaline solid wastes has been rapidly developed over the last ten years and is considered one of the promising technologies to stabilize solid wastes while combating global warming. Despite the publication of a number of reports evaluating the performance of the processes, no study on the estimation of the global CO2 reduction potential by CO2 mineralization and utilization using alkaline solid wastes has been reported. Here, we estimate global CO2 mitigation potentials facilitated by CO2 mineralization and utilization as a result of accelerated carbonation using various types of alkaline solid wastes in different regions of the world. We find that a substantial amount of CO2 (that is, 4.02 Gt per year) could be directly fixed and indirectly avoided by CO2 mineralization and utilization, corresponding to a reduction in global anthropogenic CO2 emissions of 12.5%. In particular, China exhibits the greatest potential worldwide to implement CO2 mineralization and utilization, where it would account for a notable reduction of up to 19.2% of China’s annual total emissions. Our study reveals that CO2 mineralization and utilization using alkaline solid wastes should be regarded as one of the essential green technologies in the portfolio of strategic global CO2 mitigation.

Suggested Citation

  • Shu-Yuan Pan & Yi-Hung Chen & Liang-Shih Fan & Hyunook Kim & Xiang Gao & Tung-Chai Ling & Pen-Chi Chiang & Si-Lu Pei & Guowei Gu, 2020. "CO2 mineralization and utilization by alkaline solid wastes for potential carbon reduction," Nature Sustainability, Nature, vol. 3(5), pages 399-405, May.
    • Handle: RePEc:nat:natsus:v:3:y:2020:i:5:d:10.1038_s41893-020-0486-9
    DOI: 10.1038/s41893-020-0486-9
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    Cited by:

    1. Dai, Xuguang & Wei, Chongtao & Wang, Meng & Zhang, Junjian & Wang, Xiaoqi & Shi, Xuan & Vandeginste, Veerle, 2023. "Understanding CO2 mineralization and associated storage space changes in illite using molecular dynamics simulation and experiments," Energy, Elsevier, vol. 283(C).
    2. Chai, Rukuan & Liu, Yuetian & Wang, Jingru & Liu, Qianjun & Rui, Zhenhua, 2022. "CO2 utilization and sequestration in Reservoir: Effects and mechanisms of CO2 electrochemical reduction," Applied Energy, Elsevier, vol. 323(C).
    3. He, Minyu & Teng, Liumei & Gao, Yuxiang & Rohani, Sohrab & Ren, Shan & Li, Jiangling & Yang, Jian & Liu, Qingcai & Liu, Weizao, 2022. "Simultaneous CO2 mineral sequestration and rutile beneficiation by using titanium-bearing blast furnace slag: Process description and optimization," Energy, Elsevier, vol. 248(C).
    4. Anita Punia, 2021. "Carbon dioxide sequestration by mines: implications for climate change," Climatic Change, Springer, vol. 165(1), pages 1-17, March.

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