IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i14p3576-d383209.html
   My bibliography  Save this article

Recovery of Cenospheres and Fine Fraction from Coal Fly Ash by a Novel Dry Separation Method

Author

Listed:
  • Jan Wrona

    (Environmental and Power Engineering, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland)

  • Witold Żukowski

    (Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland)

  • Dariusz Bradło

    (Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland)

  • Piotr Czupryński

    (PGE Energia Ciepła S.A., Ciepłownicza 1, 31-587 Cracow, Poland)

Abstract

Aluminosilicate microspheres are a valuable fraction of coal fly ash with diverse applications due to their low density. Currently, there is no efficient and ecologically rational method of cenosphere recovery from fly ash. A combination of dry methods for the recovery of both fine ash particles and aluminosilicate microspheres from coal fly ash is presented. It is comprised of fluidised bed separation followed by screening and pneumatic separation in a free-fall air chamber. Fluidised bed separation was assisted by a mechanical activator to prevent agglomeration. This step reduced the portion of material that required further treatment by 52–55 wt.%, with the recovery of microspheres exceeding 97%. Then, the concentrates were individually subjected to pneumatic separation. The final separation product for the fly ash containing 0.64 wt.% cenospheres was a cenosphere concentrate that constituted about 17 wt.% of the initial fly ash. The recovery of cenospheres was around 81%. Usage of a combination of dry methods allowed for maintaining almost 83 wt.% of the raw material in its dry form. Furthermore, the produced fly ash grain fractions could be used for different industrial purposes.

Suggested Citation

  • Jan Wrona & Witold Żukowski & Dariusz Bradło & Piotr Czupryński, 2020. "Recovery of Cenospheres and Fine Fraction from Coal Fly Ash by a Novel Dry Separation Method," Energies, MDPI, vol. 13(14), pages 1-14, July.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:14:p:3576-:d:383209
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/14/3576/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/14/3576/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Yang, Yongping & Guo, Xiyan & Wang, Ningling, 2010. "Power generation from pulverized coal in China," Energy, Elsevier, vol. 35(11), pages 4336-4348.
    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. Ewa Strzałkowska, 2023. "Ashes Qualified as a Source of Selected Critical Elements (REY, Co, Ga, V)," Energies, MDPI, vol. 16(8), pages 1-19, April.

    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. Chen, Shiyi & Lior, Noam & Xiang, Wenguo, 2015. "Coal gasification integration with solid oxide fuel cell and chemical looping combustion for high-efficiency power generation with inherent CO2 capture," Applied Energy, Elsevier, vol. 146(C), pages 298-312.
    2. Jiang, Yue & Duan, Liqiang & Pang, Liping & Song, Jifeng, 2021. "Thermal performance study of tower solar aided double reheat coal-fired power generation system," Energy, Elsevier, vol. 230(C).
    3. Kalimuthu, Selvam & Karmakar, Sujit & Kolar, Ajit Kumar, 2017. "3-E analysis of a Pressurized Pulverized Combined Cycle (PPCC) power plant using high ash Indian coal," Energy, Elsevier, vol. 128(C), pages 634-648.
    4. Wang, Gang & Zhang, Zhen & Lin, Jianqing, 2024. "Multi-energy complementary power systems based on solar energy: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 199(C).
    5. Duan, Liqiang & Zhao, Mingde & Yang, Yongping, 2012. "Integration and optimization study on the coal-fired power plant with CO2 capture using MEA," Energy, Elsevier, vol. 45(1), pages 107-116.
    6. Bouckaert, Stéphanie & Assoumou, Edi & Selosse, Sandrine & Maïzi, Nadia, 2014. "A prospective analysis of waste heat management at power plants and water conservation issues using a global TIMES model," Energy, Elsevier, vol. 68(C), pages 80-91.
    7. Yong Zhu & Rongrong Zhai & Yongping Yang & Miguel Angel Reyes-Belmonte, 2017. "Techno-Economic Analysis of Solar Tower Aided Coal-Fired Power Generation System," Energies, MDPI, vol. 10(9), pages 1-26, September.
    8. Zhu, Yong & Zhai, Rongrong & Qi, Jiawei & Yang, Yongping & Reyes-Belmonte, M.A. & Romero, Manuel & Yan, Qin, 2017. "Annual performance of solar tower aided coal-fired power generation system," Energy, Elsevier, vol. 119(C), pages 662-674.
    9. Mathews, John A. & Tan, Hao, 2013. "The transformation of the electric power sector in China," Energy Policy, Elsevier, vol. 52(C), pages 170-180.
    10. Lin, Boqiang & Wu, Ya & Zhang, Li, 2012. "Electricity saving potential of the power generation industry in China," Energy, Elsevier, vol. 40(1), pages 307-316.
    11. Yang, Yongping & Wang, Ligang & Dong, Changqing & Xu, Gang & Morosuk, Tatiana & Tsatsaronis, George, 2013. "Comprehensive exergy-based evaluation and parametric study of a coal-fired ultra-supercritical power plant," Applied Energy, Elsevier, vol. 112(C), pages 1087-1099.
    12. Ligang Wang & Yongping Yang & Changqing Dong & Zhiping Yang & Gang Xu & Lingnan Wu, 2012. "Exergoeconomic Evaluation of a Modern Ultra-Supercritical Power Plant," Energies, MDPI, vol. 5(9), pages 1-17, September.
    13. Jun Zhao & Kun Yang, 2020. "Analysis of CO 2 Abatement Cost of Solar Energy Integration in a Solar-Aided Coal-Fired Power Generation System in China," Sustainability, MDPI, vol. 12(16), pages 1-17, August.
    14. Wang, Chaoyang & Liu, Ming & Li, Bingxin & Liu, Yiwen & Yan, Junjie, 2017. "Thermodynamic analysis on the transient cycling of coal-fired power plants: Simulation study of a 660 MW supercritical unit," Energy, Elsevier, vol. 122(C), pages 505-527.
    15. Ma, Liqun & Ge, Zhihua & Zhang, Fuxiang & Wei, Huimin, 2020. "A novel super high back pressure cascade heating scheme with multiple large-scale turbine units," Energy, Elsevier, vol. 201(C).
    16. Zha, Donglan & Ding, Ning, 2014. "Elasticities of substitution between energy and non-energy inputs in China power sector," Economic Modelling, Elsevier, vol. 38(C), pages 564-571.
    17. Wang, Yanhong & Cao, Lihua & Hu, Pengfei & Li, Bo & Li, Yong, 2019. "Model establishment and performance evaluation of a modified regenerative system for a 660 MW supercritical unit running at the IPT-setting mode," Energy, Elsevier, vol. 179(C), pages 890-915.
    18. Wang, Ligang & Yang, Yongping & Dong, Changqing & Morosuk, Tatiana & Tsatsaronis, George, 2014. "Multi-objective optimization of coal-fired power plants using differential evolution," Applied Energy, Elsevier, vol. 115(C), pages 254-264.
    19. Wang, Ligang & Voll, Philip & Lampe, Matthias & Yang, Yongping & Bardow, André, 2015. "Superstructure-free synthesis and optimization of thermal power plants," Energy, Elsevier, vol. 91(C), pages 700-711.
    20. Chen, Zhichao & Li, Zhengqi & Zhu, Qunyi & Jing, Jianping, 2011. "Gas/particle flow and combustion characteristics and NOx emissions of a new swirl coal burner," Energy, Elsevier, vol. 36(2), pages 709-723.

    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:jeners:v:13:y:2020:i:14:p:3576-:d:383209. 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.