×
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

FCCU Expansion Joints - Purged vs. Packed

FCCU Expansion Joints - Purged vs. Packed

FCCU Expansion Joints - Purged vs. Packed

(OP)
I'm in the process of specing out an expansion joint for an FCCU regenerator flue gas duct.  I'm talking with vendors, but I'm curious to get the views on the group on the current "state of the art" regarding protection of the bellows from the build-up of catalyst in the bellows.

The two main methods are packing the bellows with insulating material to block catalyst buildup and purging the bellows with air/steam/inert gas to sweep catalyst out.

Any tips, preferences, horror stories, etc regarding the use of one method vs. the other are appreciated.

Edward L. Klein
Pipe Stress Engineer
Houston, Texas

"All the world is a Spring"

All opinions expressed here are my own and not my company's.

RE: FCCU Expansion Joints - Purged vs. Packed

StressGuy,

We are on the back end of such a project. My involvement in the job was very minimal however. I do know that at one time these joints used steam/air purges.

We deal with Pathways when it comes to our FCCU expansion joints. I'll see what I can dig up and will post info.

Good Luck!

Hench

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