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


prepolycondensation resin reactor agitator design help

prepolycondensation resin reactor agitator design help

prepolycondensation resin reactor agitator design help

Dear Sir/Madam :

Can you please suggest that it is suitable or not for our prepolycondensation resin reactor installed the anchor(bottom) + 2 layer of disk-turbine impellers ?

The prepolycondensation resin reactor is operated at the vacuum condition from 2000mmH2O to 1 torr around 270C to separated the Ethylene glycol small molecular from the reactor top vent line to 1st & 2nd condenser.

Since our previous reactor design is the helical ribbon with jacket type, but with the degree of vacuum increase, the by-product of the ethylene glycol vapor molecular's devolatilization rate would be less which is devolitaized through reactor top vent.

Therefore, we plan to add the internal coil round 4 layer and replace the helical ribbon with disk turbine + anchor to increase heat transfer.

The chemical reaction :

The reaction rate constant and the devolatilization rate constant wound increase less after the degree of vacuum increase.

I wonder this agitation arrangement ( anchor+ 2 layer of disk-turbine impellers) suitable for this reaction can really increase surface renewal rate and increase mass & heat transfer rate to increase the degree of polymerization ?

And, is possible to add the liquid phase of the ethyl glycol spray device at the 2nd condenser located at the top of the prepolycondensation resin reactor ?

I would appreciate for any advice.
Thank you

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!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close