Multibed pressure swing adsorption apparatus and method for the operation thereof
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United States of America Patent
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Aug 12, 1997
Grant Date -
N/A
app pub date -
Oct 4, 1995
filing date -
Oct 4, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Pressure swing apparatus comprises at least three parallel beds of adsorbent operated on cycles of being on-line to adsorb contaminant from a feed gas stream under pressure, being depressurized, being regenerated by a purge gas, and being repressurised. Feed gas is transferred from a depres-surising bed to a repressurizing bed to reduce switch loss and repressurization is extended to occupy at least 50% of the cycle to smooth the feed gas output.
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