×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

Materials for low concentration H2S Service

Materials for low concentration H2S Service

Materials for low concentration H2S Service

(OP)
I am preparing to do a short term trial (3 days) of a new chemical in an existing process.  The chemical is oil based and contains ~ 2 ppm residual H2S in solution.  Temperatures and pressures are low (near ambient) and water content is very low.

Is this enough H2S to be considered H2S service?

The existing system is mostly SS tubing, however there are other pieces of process equipment (pumps, valves, and vessels) that are a mix of other materials including CS and rubber.  Do I need to be concerned with 2 ppm H2S ?

Thanks for your help!

RE: Materials for low concentration H2S Service

I'll go out on a limb (unresearched) and say I don't think 2 PPM will cause a problem--unless it can somehow concentrate.  By now you should have your test results.
 
Outcome?

RE: Materials for low concentration H2S Service

2 ppm is nowhere near the definition of Sour Service.

RE: Materials for low concentration H2S Service

I believe in general "oil-" can conceivably be a problem for "rubber" (I guess depending on what types and temperatures etc. the oils and rubbers are), but I am not sure this will be a practical problem if the oil will only be in contact with the rubber for a short amount of time.  You may want to ask the manufacturer(s) involved.

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!


Resources