×
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

Recycling blowing agent (having solvent) from Nutsche filters.

Recycling blowing agent (having solvent) from Nutsche filters.

Recycling blowing agent (having solvent) from Nutsche filters.

(OP)
In blowing the filter cake in our Nutsche filter with nitrogen significant quantities of solvent (Isopropanol)
are lost.  Is there an established technology whereby both the gas & solvent can be recycled ?

RE: Recycling blowing agent (having solvent) from Nutsche filters.

If your pressure is < 15 PSI, you could theoretically use a roots type positive displacement blower to recirculate the N2 throught the filter.  The knockout pot between the filter and blower would need to be a vacuum rated pressure vessel.  You may also neet a heat exchanger on the blower discharge to remove the heat of compression, as these type of blowers are roughly 50-60% efficient.  If you cool the blower discharge enough (chiller?), you may need another pressure vessel for the condensed and reclaimed solvent.

A major impediment to success would likely be diatomaceous earth (filter aid) carryover into the blower.  Due to its abrasive action, the blower life would be short if carryover is significant.

RE: Recycling blowing agent (having solvent) from Nutsche filters.

It is very possible that my company can help you.  It just happens that we are installing a piece of equipment that incorporates a nutsche filter and solvent recovery along with a fluidbed dryer.  We would love to discuss your application in a more secure manner.  Please contact Russell Husfeld or Alan Nix at 1-800-228-3217.
Also, visit our website: www.appliedchemical.com

RE: Recycling blowing agent (having solvent) from Nutsche filters.

Solvent recovery must be faily common for this type of application.

Best Regards

Morten

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