Pressure swing adsorption gas flow control method and system
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United States of America Patent
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Feb 6, 2001
Grant Date -
N/A
app pub date -
Feb 9, 1999
filing date -
Feb 9, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The flow of gas between two vessels, each of which undergoes cyclic changes in gas pressure, is controlled by two check valves installed in parallel between the vessels. The first check valve allows gas to flow from the first vessel to the second vessel when the differential pressure between the vessels exceeds a first value, and the second check valve allows gas to flow from the second vessel to the first vessel when the differential pressure between the vessels exceeds a second value. The gas flow control method is particularly useful in pressure swing adsorption processes.
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