IDEAS home Printed from https://ideas.repec.org/a/sae/engenv/v12y2001i1p47-54.html
   My bibliography  Save this article

Study on Tar Property from Coal Mild Gasification with Calcium Oxide Catalyst

Author

Listed:
  • Zhu Tingyu

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, P.O.BOX 2706, Beijing, 10080, P R China)

  • Wang Yang

    (State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O.BOX 165, Taiyuan Shanxi 030001, P R China)

Abstract

Tars in both the presence and absence of calcium oxide were analyzed and compared. The results indicated that tar yields reach the maximum at 650 degrees in the absence of calcium oxide. It is in accordance with Tyler's results. But when calcium oxide is added, the temperature of tar maximum yield is only 550 degrees C. It is also demonstrated that the ratio of H/C, BTX, PCX and other light content in tar increase while the ratio of (O+N+S)/C and oxide compound in tar decrease in the presence of calcium oxide. It is noted that the maximum composition of alkanes in tar is C 14 ∼C 20 in the presence of calcium oxide while is C 8 ∼C 15 in the absence of calcium oxide. The yield of phenolic compounds was higher in the presence of calcium oxide than the raw coal alone. The result disagrees with the reported literature. The difference may arise from differences in temperature and gas or solid residence time, or from the difference of activity of calcium oxide used.

Suggested Citation

  • Zhu Tingyu & Wang Yang, 2001. "Study on Tar Property from Coal Mild Gasification with Calcium Oxide Catalyst," Energy & Environment, , vol. 12(1), pages 47-54, January.
    • Handle: RePEc:sae:engenv:v:12:y:2001:i:1:p:47-54
    DOI: 10.1260/0958305011500599
    as

    Download full text from publisher

    File URL: https://journals.sagepub.com/doi/10.1260/0958305011500599
    Download Restriction: no
    File URL: https://libkey.io/10.1260/0958305011500599?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
    ---><---

    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:12:y:2001:i:1:p:47-54. 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.