Process for producing high purity oxygen gas from air
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United States of America Patent
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Jan 15, 1991
Grant Date -
N/A
app pub date -
Jul 18, 1988
filing date -
Aug 7, 1987
priority date (Note) -
Expired
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Abstract
A process for producing a high purity oxygen from air by PSA which comprises connecting a first adsorption unit packed with carbon molecular sieve and a second adsorption unit packed with zeolite molecular sieve in series, conducting PSA operation separately in each of the units during the same operation cycle time, accumulating the desorption gas from the first adsorption unit in a receiver and then introducing the resulting desorption gas to the second unit as a raw material gas and to the first unit as a rinse gas.
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