Pressure swing adsorption process for gas separation
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United States of America Patent
Stats
-
Aug 14, 1990
Grant Date -
N/A
app pub date -
May 12, 1989
filing date -
May 12, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improvement of a known pressure swing adsorption process for separating a desired gas from a gas mixture using a cylinder containing an adsorption column is disclosed. The improvement resides in a procedure for regenerating the adsorption column for repeated use, which comprises returning a portion of the desired gas having been separated in the cylinder back into the cylinder at an intermittently varying rate to flow through the column, to efficiently desorb a gas component having been adsorbed by the adsorption column and purge away the desorbed gas from the cylinder.
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