IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v110y2013icp65-72.html
   My bibliography  Save this article

Analysis of deposits collected under staged conditions in a pulverized coal reactor for eight US coals

Author

Listed:
  • Stimpson, Curtis K.
  • Brunner, David R.
  • Reeder, Todd A.
  • Tree, Dale R.

Abstract

Deposit samples for eight coals were collected on stainless steel probes in reducing and oxidizing regions of a 160kWth, down-fired, pulverized coal reactor. Firing conditions in the reactor and probe temperatures were controlled to simulate an industrial furnace operating on an advanced ultra-supercritical steam cycle, 500°C in the near burner region and 750°C in the oxidizing region. The samples were analyzed using scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) to determine particle sizes and elemental compositions. Deposited particles on the top or upstream side of the probes were larger and more irregular in shape. Particles that deposited on the bottom or downstream side of the probes were smaller and more spherical. The SEM–EDS analysis showed each particle consisted of a unique composition of elements. The sulfur concentrations measured in the deposits were averaged for the upstream and downstream side of each specimen and were not found to correlate with sulfur concentrations of their respective coals, but they were strongly correlated with the calcium and iron contents of their respective coals. The high-calcium, sub-bituminous and lignite coals produced high sulfur concentrations in the deposits, particularly in the downstream, oxidizing deposits. The high-iron, bituminous coals produced high sulfur concentrations primarily in upstream, reducing deposits. The relatively low-calcium and low-iron bituminous coals produced low sulfur concentrations in the deposits. Although high in iron, the Mahoning coal deposits contained low sulfur concentrations.

Suggested Citation

  • Stimpson, Curtis K. & Brunner, David R. & Reeder, Todd A. & Tree, Dale R., 2013. "Analysis of deposits collected under staged conditions in a pulverized coal reactor for eight US coals," Applied Energy, Elsevier, vol. 110(C), pages 65-72.
    • Handle: RePEc:eee:appene:v:110:y:2013:i:c:p:65-72
    DOI: 10.1016/j.apenergy.2013.04.037
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261913003322
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2013.04.037?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. Li, Fenghai & Li, Zhenzhu & Huang, Jiejie & Fang, Yitian, 2014. "Understanding mineral behaviors during anthracite fluidized-bed gasification based on slag characteristics," Applied Energy, Elsevier, vol. 131(C), pages 279-287.
    2. Kuang, Min & Yang, Guohua & Zhu, Qunyi & Ti, Shuguang & Wang, Zhenfeng, 2017. "Effect of burner location on flow-field deflection and asymmetric combustion in a 600MWe supercritical down-fired boiler," Applied Energy, Elsevier, vol. 206(C), pages 1393-1405.
    3. Wang, Chang'an & Zhao, Lin & Sun, Ruijin & Zhou, Lei & Jin, Liyan & Che, Defu, 2022. "Experimental study on NO emission and ash deposition during oxy-fuel combustion of high-alkali coal under oxygen-staged conditions," Energy, Elsevier, vol. 251(C).
    4. Li, Fenghai & Liu, Quanrun & Li, Meng & Fang, Yitian, 2018. "Understanding fly-ash formation during fluidized-bed gasification of high-silicon-aluminum coal based on its characteristics," Energy, Elsevier, vol. 150(C), pages 142-152.

    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:appene:v:110:y:2013:i:c:p:65-72. 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.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    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.