H2S scavenger design - Triazamine does it form solids on recycle?
  • Vote Up0Vote Down s.jones July 2009
    Posts: 4
    We are designing an H2S scavenger process in Haynesville shale, LA. Plan to recycle liquid 50%wt triazamine solution through 36" packed absorber at 1100 psig, 80 degF until H2S breakthrough as solution becomes increasingly spent. Process same as typical TEG unit except will swap to second liquid triazine tank (100 bbl) when H2S starts to breakthrough in process gas. One chemical company says design will fail due to formation of solids as solution becomes spent. Another chemical company says no problem. Anybody have any experience with this design? Contacting the gas (40 ppmv H2S) with the liquid triazine will provide excellent gas / liquid contact, the problem is the recycle of the liquid from the suction tank into the tower in cycle until changing liquid tanks? Steve Jones, 970-769-4983, must know soon, about to start. 7-25-09
  • 3 Comments sorted by
  • Vote Up0Vote Down Mahmood July 2009
    Posts: 4
    The following reply is from Mike Sheilan a JMC instructor & Consultant. 

    "To my understanding, the spent scavengers that I have seen used in Canada contain the known components of triazine, bis-dithiazine, dithiazine, methanol, MEA and water. These are readily water soluble and I don't believe that plugging will be an issue. Most  towers I know of are simply liquid filled vessels with a sparging tube for gas in teh bottom. I suppose a packed tower should provide excellent contact, so they should get max usage of chemical.

    I say, if one of the vendors says this will not be a problem, then you buy your product from them.
    Mike"
  • Vote Up0Vote Down CharmZer August 2009
    Posts: 1
              If the design is finish Can  I see this design of yours., Thanks a lot.,




    _________________
    Aprilaire
  • Vote Up0Vote Down banchodkk99 May 2010
    Posts: 1
    Thank you very much for posting this article. Its a very useful article. We will be acquire lot of things from this site.So i want some information about this post.
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