Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 5, 2009
Patent Application Number
11408294
Date Filed
April 20, 2006
Patent Primary Examiner
Patent abstract
A process and method for separating CO2 from a gaseous stream such as natural gas. An ionic liquid comprising an anion having a carboxylate function and an effective amount of water is used as an adsorbent to selectively complex the CO2 yielding a gaseous stream with a greatly reduced CO2 content. The ionic liquid can then be readily be regenerated and recycled.
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