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SEPARATION AT SUB-AMBIENT TEMPERATURE OF A GASEOUS MIXTURE CONTAINING CARBON DIOXIDE AND A LIGHTER CONTAMINANT
SEPARATION AT SUB-AMBIENT TEMPERATURE OF A GASEOUS MIXTURE CONTAINING CARBON DIOXIDE AND A LIGHTER CONTAMINANT
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机译:含二氧化碳和较轻污染物的气态混合物在亚环境温度下的分离
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摘要
A device for separating a gas mixture containing at least 35 mol % carbon dioxide and also at least one gas lighter than carbon dioxide, comprising a first phase separator configured to receive a first partially condensed flow from an exchange line; a first phase separator configured to separate the gas phase from the liquid phase; a cooling means configured to receive the gas phase from the first phase separator and cool said gas phase to form a second partially condensed flow. The resulting liquid phase is then sent to a first valve and is expanded to a lower pressure that is at most 300 mbar lower in order to form a first expanded liquid, which is then mixed with a second liquid originating from the second phase separator in a mixing means that is located upstream of a third valve.
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