IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v15y2023i6p4933-d1093023.html
   My bibliography  Save this article

Effect of CO 2 Mineralization on the Composition of Alkali-Activated Backfill Material with Different Coal-Based Solid Wastes

Author

Listed:
  • Binbin Huo

    (School of Mines, China University of Mining and Technology, Xuzhou 221116, China)

  • Jixiong Zhang

    (School of Mines, China University of Mining and Technology, Xuzhou 221116, China)

  • Meng Li

    (State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China)

  • Nan Zhou

    (School of Mines, China University of Mining and Technology, Xuzhou 221116, China)

  • Xincai Qiu

    (Jining Energy Bureau, Jining 272067, China)

  • Kun Fang

    (School of Mines, China University of Mining and Technology, Xuzhou 221116, China)

  • Xiao Wang

    (School of Mines, China University of Mining and Technology, Xuzhou 221116, China)

Abstract

Research focusing on waste management and CO 2 mineralization simultaneously has been a popular topic in the mining community, and a common approach is to mineralize CO 2 with coal-based solid waste (CSW, e.g., gangue (CG), fly ash (FA), coal gasification slag (CGS)) produced by mining activities. Despite the understanding of CO 2 mineralization by cementitious materials, the mineralization capacity of alkali-activated CSWs remains unknown. Therefore, the mineral composition evolution and mineralization capacity of different alkali-activated materials (prepared with CG, FA, CGS, and sodium hydroxide (which works as the alkali-activator), respectively) are investigated with the adoption of Gibbs Energy Minimization Software (GEMS). The results indicate that the abovementioned three alkali-activated CSWs are majorly composed of calcium silicate hydrate, magnesium silicate hydrate, kaolinite, sodium zeolite, and liquid. Due to the difference in the chemical composition of different CSWs, the amount of hydration products varies. Specifically, the alkali-activated CSWs made with CGS have the maximum calcium silicate hydrate (C-S-H), while those prepared with FA enjoy the lowest porosity. In addition, the CO 2 mineralization process will result in the formulation of carbonate and, theoretically, the maximum quantity of mineralized CO 2 is less than 20% of the binder used. Furthermore, compared with CG and CGS, FA is characterized with the highest mineralization capacity. The findings in this study contribute to the understanding of CO 2 mineralization with alkali-activated CSWs.

Suggested Citation

  • Binbin Huo & Jixiong Zhang & Meng Li & Nan Zhou & Xincai Qiu & Kun Fang & Xiao Wang, 2023. "Effect of CO 2 Mineralization on the Composition of Alkali-Activated Backfill Material with Different Coal-Based Solid Wastes," Sustainability, MDPI, vol. 15(6), pages 1-13, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:4933-:d:1093023
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/15/6/4933/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/15/6/4933/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Xu, Jiuping & Dai, Jingqi & Xie, Heping & Lv, Chengwei, 2017. "Coal utilization eco-paradigm towards an integrated energy system," Energy Policy, Elsevier, vol. 109(C), pages 370-381.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Zitao Zhao & Wenlong Mo & Guihan Zhao & Yingshuang Zhang & Hao Guo & Jun Feng & Zhiqiang Yang & Dong Wei & Xing Fan & Xian-Yong Wei, 2024. "Composition and Structural Characteristics of Coal Gasification Slag from Jinhua Furnace and Its Thermochemical Conversion Performance," Sustainability, MDPI, vol. 16(14), pages 1-15, July.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Qiu, Rui & Hou, Shuhua & Meng, Zhiyi, 2021. "Low carbon air transport development trends and policy implications based on a scientometrics-based data analysis system," Transport Policy, Elsevier, vol. 107(C), pages 1-10.
    2. Baskoro, Firly Rachmaditya & Takahashi, Katsuhiko & Morikawa, Katsumi & Nagasawa, Keisuke, 2022. "Multi-objective optimization on total cost and carbon dioxide emission of coal supply for coal-fired power plants in Indonesia," Socio-Economic Planning Sciences, Elsevier, vol. 81(C).
    3. Li, Ximei & Gao, Jianmin & You, Shi & Zheng, Yi & Zhang, Yu & Du, Qian & Xie, Min & Qin, Yukun, 2022. "Optimal design and techno-economic analysis of renewable-based multi-carrier energy systems for industries: A case study of a food factory in China," Energy, Elsevier, vol. 244(PB).
    4. Lee, Boreum & Kim, Hyunwoo & Lee, Hyunjun & Byun, Manhee & Won, Wangyun & Lim, Hankwon, 2020. "Technical and economic feasibility under uncertainty for methane dry reforming of coke oven gas as simultaneous H2 production and CO2 utilization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).
    5. Qi, Xiaoyan & Guo, Pibin & Guo, Yanshan & Liu, Xiuli & Zhou, Xijun, 2020. "Understanding energy efficiency and its drivers: An empirical analysis of China’s 14 coal intensive industries," Energy, Elsevier, vol. 190(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:4933-:d:1093023. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.