IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v315y2025ics0360544225000970.html
   My bibliography  Save this article

Nitrogen sources and formation routes of nitric oxide from pure ammonia combustion

Author

Listed:
  • Liu, Xiangtao
  • Si, Jicang
  • Wang, Guochang
  • Wu, Mengwei
  • Mi, Jianchun

Abstract

This study is to investigate firstly the nitrogen sources and formation routes of nitric oxide (NO) from pure ammonia combustion. A well stirred reactor (WSR) is used for chemical processes while a jet-in-hot-coflow (JHC) configuration of ammonia flames is employed to account for the flow impact. Different combustion regimes are simulated by changing various parameters in both WSR and JHC cases. Results reveal that the production of thermal-NO increases with TWSR (WSR working temperature) at TWSR ≥ 1900–2500 K, below which it is negligible. In contrast, the fuel-NO exhibits a non-monotonic behavior with TWSR: initially increasing, then decreasing, and eventually increasing again. Interestingly, it is found that reactions within the Extended Zeldovich route play a crucial role in reducing the fuel-NO. The simulated JHC flames of pure ammonia indicate that MILD combustion minimizes both fuel- and thermal-NO emissions. Furthermore, the fuel-NO always emerges as the dominant source of NO, no matter which combustion regime occurs. The thermal-NO however remains negligible in pure ammonia combustion except in those cases of enriched-oxygen and extremely-high ambient temperatures.

Suggested Citation

  • Liu, Xiangtao & Si, Jicang & Wang, Guochang & Wu, Mengwei & Mi, Jianchun, 2025. "Nitrogen sources and formation routes of nitric oxide from pure ammonia combustion," Energy, Elsevier, vol. 315(C).
    • Handle: RePEc:eee:energy:v:315:y:2025:i:c:s0360544225000970
    DOI: 10.1016/j.energy.2025.134455
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225000970
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.134455?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.

    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:energy:v:315:y:2025:i:c:s0360544225000970. 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/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.