Oxygen removal from contaminated gases
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United States of America Patent
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Jul 17, 2012
Grant Date -
Apr 28, 2011
app pub date -
Oct 23, 2009
filing date -
Oct 23, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a method for achieving low oxygen levels in a natural gas stream without the use of a catalytic system. In one embodiment, the method comprises: membrane treatment for the removal of the bulk of CO2 and oxygen in the natural gas feed and the addition of a PSA system using a carbon molecular sieve adsorbent for the adsorption of residual oxygen.
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