Membrane process for removing water vapor from gas
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United States of America Patent
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Jul 23, 1991
Grant Date -
N/A
app pub date -
Dec 1, 1989
filing date -
Dec 1, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a process for removing water vapor from water vapor-containing gases which is carried out by contacting with a feed gas mixture containing water vapor one side of a semi-permeable membrane selective to the passage of water vapor, maintaining a water vapor partial pressure differential across the membrane under conditions such that water vapor selectively permeates through the membrane from the higher pressure side to the lower pressure side of the membrane, contacting the opposite and lower pressure side of the membrane with a dry condensable sweep gas, and collecting and condensing the sweep gas containing permeated water, thereby causing separation of the sweep gas containing permeated water into an organic liquid phase and aqueous liquid phase.
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