Passive filtration system

Details Passive filtration system Passive filtration system

B - Operations, Transporting

01

D

B01D 53/74 (2006.01) B01D 39/20 (2006.01) B01D 53/04 (2006.01)

Patent

CA 2444270

A filter system including a housing (12) with an intake (13) and an outlet (16), a pleated carbon filter (18) disposed between the intake and the outlet for filtering out vapors entering the intake, and a hydrophobic solution dispersed about the pleated carbon filter (18) to inhibit adsorption of water thereby increasing the adsorption capacity of the pleated carbon filter especially in high relative humidity environments. The hydrophobic solution is selected so that it does not decrease the adsorption capacity of the carbon filter. Also disclosed is a method of making such a filter.

L'invention concerne un système de filtre comprenant un logement (12) équipé d'une entrée (13) et d'une sortie (16), un filtre de carbone plissé (18) disposé entre l'entrée et la sortie afin de filtrer des vapeurs entrantes, et une solution hydrophobe dispersée autour du filtre de carbone plissé (18) destinée à empêcher l'adsorption d'eau, permettant ainsi d'augmenter la capacité d'adsorption du filtre de carbone plissé plus spécialement dans des environnements à humidité relative élevée. La solution hydrophobe est sélectionnée de façon à ce qu'elle ne réduise pas la capacité d'adsorption du filtre de carbone. L'invention concerne aussi un procédé de fabrication d'un tel filtre.

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