Gas dispersion pipe for gas-liquid contact, and process and...

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 53/18 (2006.01) B01D 53/50 (2006.01) B01D 53/78 (2006.01) B01F 3/04 (2006.01) B01F 5/06 (2006.01) B01F 13/10 (2006.01) B01J 4/00 (2006.01) B01J 10/00 (2006.01) B01J 19/00 (2006.01) B01F 5/10 (2006.01) B01F 5/20 (2006.01)

Patent

CA 2168649

A gas dispersion pipe into which gas is introduced through its top end portion and blown out from its bottom end portion into liquid for gas-liquid contact, and a method and a device for gas-liquid contact employing the gas dispersion pipe are disclosed. The gas dispersion pipe has its top end portion formed in a contraction pipe with its horizontal cross-sectional area decreasing downward and/or its bottom end portion formed in a nozzle structure with its horizontal cross-sectional area decreasing downward. In stead of making the gas dispersion pipe with its bottom end portion in the nozzle structure, a gas guide member with its horizontal cross-sectional area increasing downward may be disposed within the bottom end portion of the gas dispersion pipe.

La présente invention concerne un tube de dispersion gazeuse dans lequel un gaz est introduit par une extrémité supérieure, puis éjecté par une extrémité inférieure dans un liquide pour faire barboter le gaz dans le liquide. L'invention concerne également un procédé de barbotage du gaz dans le liquide ainsi qu'un dispositif utilisant ce tube. De par sa forme, une partie de l'extrémité supérieure du tube de dispersion gazeuse présente une structure tubulaire convergeante dont la surface de section en coupe horizontale décroît de haut en bas, et/ou une partie de l'extrémité inférieure du tube présente une structure en buse dont la surface de section en coupe horizontale décroît de haut en bas. Dans une autre réalisation, la partie inférieure du tube ne présente pas de structure en buse, mais l'intérieur du tube de dispersion gazeuse est pourvu d'un conduit à gaz dont la surface de section en coupe horizontale croît en progressant vers le bas.

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