Process and apparatus for the liquefaction of carbon dioxide

Details Process and apparatus for the liquefaction of carbon dioxide Process and apparatus for the liquefaction of carbon dioxide

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 1/00 (2006.01) C01B 31/20 (2006.01) F25J 1/02 (2006.01) F25J 3/02 (2006.01) F25J 3/08 (2006.01)

Patent

CA 2574034

Apparatus for carbon dioxide liquefaction comprising a flow channel for carbon dioxide passage from an inlet port to an outlet port. The channel comprises a plurality of compressors (2, 5, 8) and coolers (4, 7, 9, 10, 13) arranged in series with an expansion chamber (14, 15) in said flow channel downstream of the final compressor (8) and cooler (9, 10, 13). The apparatus also comprises a recirculation channel (16) arranged to return gaseous carbon dioxide from said expansion chamber (15) into said flow channel (3) upstream of said final compressor (8) and cooler (9, 10, 13).

Un appareil utilisé pour la liquéfaction du dioxyde de carbone comprend un passage d'écoulement pour le dioxyde de carbone devant s'écouler entre un orifice d'entrée et un orifice de sortie. Le passage comporte une pluralité de compresseurs (2, 5, 8) et de refroidisseurs (4, 7, 9, 10, 13) disposés en série avec une chambre d'expansion (14, 15) située dans ledit passage d'écoulement en aval du compresseur final (8) et des refroidisseurs (9, 10, 13). L'appareil comprend également un passage de recirculation (16) prévu pour renvoyer le dioxyde de carbone gazeux sortant de la chambre d'expansion (15) dans ledit passage d'écoulement (3) en amont dudit compresseur final (8) et des refroidisseurs (9, 10, 13).

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