IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i4p1153-d503490.html
   My bibliography  Save this article

Dependence of N 2 O/NO Decomposition and Formation on Temperature and Residence Time in Thermal Reactor

Author

Listed:
  • Sang Ji Lee

    (School of Mechanical Engineering, Kyungpook National University, Buk-gu, Daegu 41566, Korea)

  • Jae Geun Yun

    (School of Mechanical Engineering, Kyungpook National University, Buk-gu, Daegu 41566, Korea)

  • Han Min Lee

    (School of Mechanical Engineering, Kyungpook National University, Buk-gu, Daegu 41566, Korea)

  • Ji Yeop Kim

    (School of Mechanical Engineering, Kyungpook National University, Buk-gu, Daegu 41566, Korea)

  • Jin Han Yun

    (Department of Environmental Machinery, Korea Institute of Machinery & Materials, Yuseong-gu, Daejeon 34103, Korea)

  • Jung Goo Hong

    (School of Mechanical Engineering, Kyungpook National University, Buk-gu, Daegu 41566, Korea)

Abstract

Nitrogen dioxide (N 2 O) is a greenhouse gas that is harmful to the ozone layer and contributes to global warming. Many other nitrogen oxide emissions are controlled using the selective non-catalytic reaction (SNCR) process, but N 2 O reduction methods are few. To avoid future air pollution problems, N 2 O reduction from industrial sources is essential. In this study, a N 2 O decomposition and NO formation under an argon atmospheric N 2 O gas mixture were observed in a lab-scale SNCR system. The reaction rate and mechanism of N 2 O were calculated using a reaction path analyzer (CHEMKIN-PRO). The residence time of the gas mixture and the temperature in the reactor were set as experimental variables. The results confirmed that most of the N 2 O was converted to N 2 and NO. The change in the N 2 O reduction rate increased with the residence time at 1013 and 1113 K, but decreased at 1213 K due to the inverse reaction. NO concentration increased with the residence time at 1013 and 1113 K, but decreased at 1213 K owing to the conversion of NO back to N 2 O.

Suggested Citation

  • Sang Ji Lee & Jae Geun Yun & Han Min Lee & Ji Yeop Kim & Jin Han Yun & Jung Goo Hong, 2021. "Dependence of N 2 O/NO Decomposition and Formation on Temperature and Residence Time in Thermal Reactor," Energies, MDPI, vol. 14(4), pages 1-11, February.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:1153-:d:503490
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/4/1153/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/4/1153/
    Download Restriction: no
    ---><---

    Citations

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


    Cited by:

    1. Robert Wejkowski & Sylwester Kalisz & Przemysław Garbacz & Izabella Maj, 2021. "Combined NO x and NH 3 Slip Reduction in a Stoker Boiler Equipped with the Hybrid SNCR + SCR System FJBS+," Energies, MDPI, vol. 14(24), pages 1-19, December.
    2. Robert Wejkowski & Sylwester Kalisz & Mateusz Tymoszuk & Szymon Ciukaj & Izabella Maj, 2021. "Full-Scale Investigation of Dry Sorbent Injection for NO x Emission Control and Mercury Retention," Energies, MDPI, vol. 14(22), pages 1-13, November.

    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:14:y:2021:i:4:p:1153-:d:503490. 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: 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.