IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v179y2021icp1537-1547.html
   My bibliography  Save this article

Computational analysis of hydrogen reduction of iron oxide pellets in a shaft furnace process

Author

Listed:
  • Shao, Lei
  • Zhang, Xiaonan
  • Zhao, Chenxi
  • Qu, Yingxia
  • Saxén, Henrik
  • Zou, Zongshu

Abstract

To gain a better understanding of the performance characteristics of a shaft furnace for hydrogen reduction of iron oxide pellets under operation with top gas recycling (TGR), a kinetic model was applied to investigate the coupled phenomena of gas-solid countercurrent reactive flow and heat transfer. The effects of operating parameters were studied for scenarios where the furnace is equipped with a single-row injection TGR system. The potential of a new TGR system featuring dual-row injection was also assessed preliminarily. The results showed that the productivity of the shaft furnace is much higher than in a syngas-based shaft furnace provided that a high mass flow of feed gas can be ensured to introduce adequate sensible heat. Hot charging of the pellets yielded an increase in the total energy consumption so the scope to reduce the gas mass flow by this method was found to be limited due to the poor heat utilization. By contrast, using a dual-row gas injection system was found to improve the performance, especially with respect to gas utilization and total energy consumption. This is chiefly attributed to a clear improvement in the thermochemical state of the furnace, which leads to a better utilization of the furnace volume.

Suggested Citation

  • Shao, Lei & Zhang, Xiaonan & Zhao, Chenxi & Qu, Yingxia & Saxén, Henrik & Zou, Zongshu, 2021. "Computational analysis of hydrogen reduction of iron oxide pellets in a shaft furnace process," Renewable Energy, Elsevier, vol. 179(C), pages 1537-1547.
    • Handle: RePEc:eee:renene:v:179:y:2021:i:c:p:1537-1547
    DOI: 10.1016/j.renene.2021.07.108
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148121011149
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2021.07.108?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

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


    Cited by:

    1. Qiu, Ziyang & Du, Tao & Yue, Qiang & Na, Hongming & Sun, Jingchao & Yuan, Yuxing & Che, Zichang & Wang, Yisong & Li, Yingnan, 2023. "A multi-parameters evaluation on exergy for hydrogen metallurgy," Energy, Elsevier, vol. 281(C).

    More about this item

    Keywords

    H2 shaft furnace; Gas utilization; Energy consumption; Dual-row injection; Sustainable steelmaking; Hydrogen metallurgy;
    All these keywords.

    JEL classification:

    • H2 - Public Economics - - Taxation, Subsidies, and Revenue

    Statistics

    Access and download statistics

    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:eee:renene:v:179:y:2021:i:c:p:1537-1547. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    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.