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AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsMarie Cognard, Arthur Darde, Benoit Davidian, Richard Dubettier-Grenier, Frederick Lockwood, Christophe Szamlewski, Xavier Traversac
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An integrated apparatus for separating a mixture of carbon dioxide and at least one other gas and for separating air by air distillation is provided. The apparatus includes a CO2 separation unit configured to separate the mixture, an air separation unit configured to separate air by cryogenic distillation, a water cooling tower that operates by direct contact, a line for sending water to the top of the tower, a line for sending at least one portion of the nitrogen-enriched gas stream to a lower level of the tower, a cooled water line for withdrawing cooled water from the tower and means for cooling the air upstream of the air separation unit, the cooled water line being connected to means for cooling the air upstream of the air separation unit and to the inlet and/or to the outlet of the unit for separating the gaseous mixture.
1-15. (canceled)
An apparatus for separating a mixture of carbon dioxide and at least one other gas and for separating air by air distillation, the apparatus comprising:
An integrated process for separating a mixture of carbon dioxide and at least one other gas and for separating air by air distillation, comprising a CO2 separation unit configured to separate a gaseous mixture comprising carbon dioxide and at least one other gas to produce a carbon dioxide-enriched gas and a carbon dioxide depleted gas and an air separation unit by cryogenic distillation in order to produce at least one nitrogen-enriched gas stream wherein the water is cooled in a water cooling tower that operates by direct contact with the nitrogen-enriched gas stream, the air intended for the air separation unit is cooled with water cooled in the cooling tower and the gaseous mixture intended for the CO2 separation unit and/or a product from the CO2 separation unit is cooled using the cooled water coming from the cooling tower.
Dependencies are inferred from the claim text.