100 Most asked questions by Chemical Engineers


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Tuesday, October 18, 2011

Vacuum Systems

Mr. Norman Lieberman: I attended your Troubleshooting Seminar in 2001 in Ft. McMurray. I have a question relating to my vacuum tower (I’m now working in a refinery on the Gulf Coast). What does it mean if ice forms on the outside of the ejector body?
--Thank you for your help. I really enjoyed your seminar. Frank.
           
Frank – This is a sure indication of water in the motive steam supply. Not just a little water, but probably over 10%. If you can eliminate this moisture, I’m sure that you will see an immediate improvement in your vacuum tower performance.
--Norm

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