×
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

distillation trays
2

distillation trays

distillation trays

(OP)
When the number of tray for distillation column is determined in hysys design(e.g., 5), how many additional trays are added in the actual plant (5+2)?  

RE: distillation trays

wow, this is a huge question.  You need to get a copy of Kister's Distillation book and scour the sections on tray efficiency, performance and on and on.  

Depending on what the column is doing, you may need as much a 3X as many trays as you've estimated.  Start by googling tray efficiency and then keep going.  Read papers from the Distillation Group - there's a ton of info out there.  Check GPSA, call a vendor, even better, try modelling the same tower to check actual efficiency.   

RE: distillation trays

What components are in the system?  Pressure?  What type trays?  Is this for Unit Ops class or lab?

Good luck,
Latexman

RE: distillation trays

2
What are you trying to do? designing a new column? troubleshooting or modelling an existing one? Is it a classroom exercise?

"We don't believe things because they are true, things are true because we believe them."

RE: distillation trays

In any case, I would rely on Hysys outputs - but only at conceptual stage of the project. I would never establish my proposed design based on the results from Hysys/Tray sizing, or on any other commercially available tool.
For designing/revamping distillation columns, one needs to go to proper address: tray/packing vendors, such as Sulzer, Koch-Glitsch, ACS, etc.

"We don't believe things because they are true, things are true because we believe them."

RE: distillation trays

(OP)
Thanks. Now I got ideas.

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