Chemical vapor trap used in a vacuum drying system

Details Chemical vapor trap used in a vacuum drying system Chemical vapor trap used in a vacuum drying system

B - Operations, Transporting

01

D

B01D 5/00 (2006.01) F26B 5/04 (2006.01) F26B 25/00 (2006.01)

Patent

CA 2149865

2149865 9412839 PCTABS00032 A chemical vapor trap (24) for selectively removing harmful corrosive contaminants, such as water and acetic acid vapors, from an evacuating vapor phase (20) in a vacuum drying system (10) is provided. The chemical vapor trap (24) includes a condenser section (40) effective to convert a high temperature incoming heated sample liquids and heated vapor phase into a liquid phase condensate and a relatively lower room temperature stripped vapor phase. Liquid condensate including water and acetic acid are trapped below a chemical blanket or sealing layer (52) which prevents re-vaporization or boiling of removed corrosive volatile contaminants from the vapor phase entering the vacuum pumps (64), promoting improved pump performance and extend pump service life.

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