IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v186y2019ics0360544219315609.html
   My bibliography  Save this article

Impacts and release characteristics of K and Mg contained in rice husk during torrefaction process

Author

Listed:
  • Zhang, Shuping
  • Su, Yinhai
  • Ding, Kuan
  • Zhang, Huiyan

Abstract

This work evaluated the catalytic effect and release characteristics of potassium (K) and magnesium (Mg) contained in rice husk during the torrefaction process. Torrefaction of rice husk samples with and without impregnating K and Mg at different torrefaction temperatures (210–270 °C) was carried out in thermogravimetric analyzer (TGA) and laboratory-scale fixed-bed apparatus. TGA studies indicated that K increased the weight loss more rapidly, while the weight losses were slightly decreased with the presence of Mg. Laboratory-scale studies also found that the solid yields of WRH, 0.1 K-WRH and 0.1 Mg-WRH were 90.2%–74.0%, 86.6%–71.8% and 90.0%–74.1% as the torrefaction temperature increased from 230 to 270 °C. K showed an obvious increase of the carbon content of solid product because of its significant catalytic deoxygenation effect. In addition, K and Mg both had the promoting effect on the formation of small molecule gas products from the catalytic conversion of the macromolecular liquid products, and K had stronger catalytic action than Mg. Besides, most K and Mg, 94.6–98.5% for K and 97.9–99.5% for Mg, were remained in the solid product while only a small amount of K and Mg were released to the volatiles during torrefaction process.

Suggested Citation

  • Zhang, Shuping & Su, Yinhai & Ding, Kuan & Zhang, Huiyan, 2019. "Impacts and release characteristics of K and Mg contained in rice husk during torrefaction process," Energy, Elsevier, vol. 186(C).
  • Handle: RePEc:eee:energy:v:186:y:2019:i:c:s0360544219315609
    DOI: 10.1016/j.energy.2019.115888
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544219315609
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.energy.2019.115888?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. Silveira, Edgar A. & Macedo, Lucélia A. & Rousset, Patrick & Candelier, Kevin & Galvão, Luiz Gustavo O. & Chaves, Bruno S. & Commandré, Jean-Michel, 2022. "A potassium responsive numerical path to model catalytic torrefaction kinetics," Energy, Elsevier, vol. 239(PB).

    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:186:y:2019:i:c:s0360544219315609. 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.