×
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

Chemical Pipeline Design

Chemical Pipeline Design

Chemical Pipeline Design

(OP)
Hi All,

Looking for some guidance on the best materials to use for Sulfuric Acid pipework transfer, and diluted but low pH mixture. There are two operating conditions:

1) 98% Sulfuric Acid injection to a tank - ambient temp but tank is heated w/steam to approx 90-100 deg C therefore can consider some heat transfer, particularly at the connection point/flange
2) Highly acidic (pH 2) Acid Water and Acid Oil pipelines (following injection of H2S04) at 100 deg C, roughly 5% dilution of sulfuric acid in the mix.

Pipeline velocities <2m/s

For background info the application is an oil soapstock splitting plant

Appreciate any help

RE: Chemical Pipeline Design

We have build ambient 98% lines from 316 stainless steel. Once this is diluted and hot then the fun really starts. In one application we worked on parts of the system was made from Tantalum.

RE: Chemical Pipeline Design

There are previous on this if you just search "acid pipelines~", like this

http://www.eng-tips.com/viewthread.cfm?qid=270320 and

http://www.eng-tips.com/viewthread.cfm?qid=369828

hot, very acidic fluid - Internal plastic type linings won't like it much from the temperature point of view, you're definitely into exotic materials if you don't have a liner.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

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