Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mark William Ackley0
Himanshu Saxena0
Gregory William Henzler0
Jeffert John Nowobilski0
Date of Patent
May 5, 2009
0Patent Application Number
104993600
Date Filed
December 19, 2002
0Patent Citations Received
0
Patent Primary Examiner
Patent abstract
This invention comprises an adsorption process for the removal of at least N2O from a feed gas stream that also contains nitrogen and possibly CO2 and water. In the process the feed stream is passed over adsorbents to remove impurities such as CO2 and water, then over an additional adsorbent having a high N2O/N2 separation factor. In a preferred mode the invention is an air prepurification process for the removal of impurities from air prior to cryogenic separation of air. An apparatus for operating the process is also disclosed.
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