Patent ID: 6764529
Filing Date: 2004-07-20
Classification: B01D

Abstract:
A method for dehydrating gas in a gas controlled and powered system having a control gas and a supply gas, the method comprising the steps of:passing supply gas through a first membrane member comprising a plurality of tubes having interstitial spaces therebetween, wherein after the supply gas has passed through the first membrane member, the supply gas becomes substantially dehydrated supply gas; channeling a first predetermined portion of substantially dehydrated supply gas to the first membrane member interstitial spaces, whereby the substantially dehydrated supply gas portion sweeps at least one of water and water vapor from the first membrane member interstitial spaces to the surrounding environment; passing control gas through a second membrane member comprising a plurality of tubes having interstitial spaces therebetween, wherein after the control gas has passed through the second membrane member, the control gas becomes substantially dehydrated control gas; directing a second predetermined portion of substantially dehydrated supply gas to the second membrane member interstitial spaces, whereby the substantially dehydrated supply gas portion sweeps at least one of water and water vapor from the second membrane member interstitial spaces.