Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Mercury in a hot source

Mercury in a hot source

Mercury in a hot source

I need to remove mercury from a gas which is produced from a hot source with ample hydrogen sulfide.

As you may know, when you get a sample tested for mercury they report it as Hg0. But you don't really know whether it is chemically combined. And in most cases, this doesn't matter, because the mercury you are removing, say from the exhaust of a coal plant, comes after combustion with oxygen, so it is in the state Hg0.

But in this case I have a small amount of mercury, say 1 ppm, which is accompanied by a large amount of hydrogen sulfide, say 10000 ppm, and it comes from a hot source, where mercury and hydrogen sulfide are known to react (above 150C). There are a few papers that indicate this is true.

Does anyone have experience in this area? Is a regular sulfur-impregnated activated carbon also appropriate for the removal of mercuric sulfide? Probably true, but is the performance downgraded or upgraded? I would like to remove the mercury first, because it can cause corrosion after it is reduced to Hg0.

RE: Mercury in a hot source

I have seen liquid Hg come out of the drain on separation vessels used as oil/water sep on hot sour oil wells.
Actually I saw the Monel drain valve fail from LME.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Mercury in a hot source

Interesting, this seems to suggest that the mercury should be in the free state. But I think that the mercury content can exceed the H2S content in oil wells, so this may not be a surprise.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close