IDEAS home Printed from
MyIDEAS: Log in (now much improved!) to save this article

Fate of sulfur with H2S injection in methane/air flames

Listed author(s):
  • Selim, H.
  • Al Shoaibi, A.
  • Gupta, A.K.
Registered author(s):

    Investigation of sulfur chemistry of hydrogen sulfide in methane/air flame under different equivalence ratios is conducted. A range of equivalence ratios extending from fuel-lean (Φ=0.5), stoichiometric (Φ=1.0), to fuel-rich (Claus condition, Φ=3.0) are examined here. Hydrogen sulfide, methane, and air were premixed prior to the injection of mixture into the combustor. Spatial gas sampling was carried out both axially and radially along the reactor at various locations downstream of the reactor. Oxidation competition between H2S and CH4 was found to be significant due to the premixed conditions. Subsequently, reaction of H2S formed SO2 rather than sulfur (S2). In addition, sulfur dioxide showed a consistent (almost-constant) trend under all equivalence ratios examined here. On the other hand, results showed the presence of carbon sulfide (CS2) under both lean and stoichiometric conditions. The formation of carbon disulfide was found to be due to the reaction of methane with sulfur compounds to form CS2. Moreover, intermediate species such as, CH react with H2S to form CS2. Higher hydrocarbons (ethane and ethylene) were observed under Claus conditions. This was due to the coupling catalytic effect of SO2 which enhances the dimerization of CH3 to form ethane. Dehydrogenation of ethane forms ethylene. Under stoichiometric and lean conditions higher hydrocarbons were not formed due to the lack of high SO2 concentration in the reaction pool.

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

    File URL:
    Download Restriction: Full text for ScienceDirect subscribers only

    As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

    Article provided by Elsevier in its journal Applied Energy.

    Volume (Year): 92 (2012)
    Issue (Month): C ()
    Pages: 57-64

    in new window

    Handle: RePEc:eee:appene:v:92:y:2012:i:c:p:57-64
    DOI: 10.1016/j.apenergy.2011.11.005
    Contact details of provider: Web page:

    Order Information: Postal:

    No references listed on IDEAS
    You can help add them by filling out this form.

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    When requesting a correction, please mention this item's handle: RePEc:eee:appene:v:92:y:2012:i:c:p:57-64. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Dana Niculescu)

    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.

    If references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link to it, you can help with 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 profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.