US Patent 7461522 Light component separation from a carbon dioxide mixture
Patent 7461522 was granted and assigned to Praxair on December, 2008 by the United States Patent and Trademark Office.
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A method of separating one or more first light components from a carbon dioxide containing gaseous mixture that contains at least 30 mole percent carbon dioxide. In accordance with the method, a feed stream composed of the carbon dioxide is cooled to effect at least in part, liquefaction of the carbon dioxide containing gaseous mixture. The feed stream and a stripping gas stream are introduced into a liquid-vapor contact column to initiate counter-current vapor liquid mass transfer and the formation of a gaseous column overhead stream and a liquid column bottoms stream. The stripping gas stream contains one or more second light components having boiling point lower than that of carbon dioxide and higher than that of the first light component(s) to enrich the gaseous column overhead stream with the first light component(s).
US Patent 07461522 Light component separation from a carbon dioxide mixture US Patent 7461522 Light component separation from a carbon dioxide mixture
US Patent 07461522 Light component separation from a carbon dioxide mixture
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