IDEAS home Printed from https://ideas.repec.org/a/sae/engenv/v34y2023i6p2031-2043.html
   My bibliography  Save this article

The effect of dispersant characteristics on the De-NOx efficiency of SCR catalyst

Author

Listed:
  • Yoo-Jin Jung
  • Jin-Sun Cha
  • Se-Jeong Lim
  • Jin-Woo Park
  • Min-Chul Shin
  • Young-Kwon Park

Abstract

In this study, we analyzed the effect of dispersant characteristics on the selective catalytic reduction (SCR) catalyst properties and de-NOx efficiency. For this, we measured the zeta potential and pH value of each dispersant, and compared the thermal properties of the dispersant through TG-DTA analysis. Also, the Py-GC/MS analysis results and the MSDS contents of the product were used to compare the components and molecular weight types of the dispersant. As a result, the higher the zeta potential, pH, and molecular weight of the dispersant, the more improved the dispersibility of the TiO 2 slurry. Characteristics such as the rheology, sedimentation, and pH change, were studied to compare the dispersibility of the catalyst slurries, and the dispersion characteristics of the TiO 2 slurries were confirmed by TEM. The SCR catalysts prepared varied based on the dispersant added, with the varying factor being the de-NOx efficiency between (250 to 450) °C depending on the dispersibility. The dispersant with the excellent dispersibility gave the highest efficiency of 84% or more at 250°C and 300°C, and the highest de-NOx efficiency of more than 92% at 350°C and 400°C.

Suggested Citation

  • Yoo-Jin Jung & Jin-Sun Cha & Se-Jeong Lim & Jin-Woo Park & Min-Chul Shin & Young-Kwon Park, 2023. "The effect of dispersant characteristics on the De-NOx efficiency of SCR catalyst," Energy & Environment, , vol. 34(6), pages 2031-2043, September.
    • Handle: RePEc:sae:engenv:v:34:y:2023:i:6:p:2031-2043
    DOI: 10.1177/0958305X221101152
    as

    Download full text from publisher

    File URL: https://journals.sagepub.com/doi/10.1177/0958305X221101152
    Download Restriction: no
    File URL: https://libkey.io/10.1177/0958305X221101152?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
    ---><---

    More about this item

    Keywords

    SCR; dispersant; de-NOx; TiO2; Dispersibility;
    All these keywords.

    JEL classification:

    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:sae:engenv:v:34:y:2023:i:6:p:2031-2043. 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: SAGE Publications (email available below). General contact details of provider: .

    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.