×
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

Pump SDSS corrosion in sour water and chloride application

Pump SDSS corrosion in sour water and chloride application

Pump SDSS corrosion in sour water and chloride application

(OP)
Hello,

A Client has asked for solutions to a corrosion problem they are having on an injection pump. Below are the process parameters:

- Operating temperature is 54 degC
- Sour water service
- Chloride levels are in the 1000ppm order (definitely below 100,000pm) but not known exactly
- MOC of casing and impeller is SDSS

The client reported corrosion even when using SDSS, and require corrosion resistant alternatives. To my knowledge, SDSS can withstand pitting corrosion in high chloride services (not sure about the ppm limit) up to around 35 degC.

Any suggestions? Would Hastelloy fare better here?

Thanks,
Maen

RE: Pump SDSS corrosion in sour water and chloride application

Which alloy are they using specifically?
Is the solution oxegenated? (allowed to come in contact with air)
As produced waters like this are free of oxygen and you don't need alloys with a lot of Cr to stand up in them (Ni-Resist is common).
With oxygen added you need very high Cr+Mo to stand up in this environment.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

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