Stripping column and process for extracting a component from...

B - Operations – Transporting – 01 – D

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B01D 3/00 (2006.01) B01D 3/20 (2006.01) B01D 3/22 (2006.01) B01D 3/32 (2006.01) B01D 19/00 (2006.01) C08F 6/00 (2006.01)

Patent

CA 2745553

Stripping column and process for extracting a component from a liquid medium using a gas, the stripping column comprising a vertical column (10) comprising an essentially cylindrical wall (54), the vertical column (10) being divided by horizontal perforated plates (20) into a series of superposed chambers (11, 12,..., 16, 17), each chamber (11, 12,..., 16, 17) comprising several vertical partitions (34, 34 I, 3 II, 34 III, 34 IV, 34 V) positioned so as to form chicanes, an upper chamber (17) comprising at least one liquid medium inlet port (28). According to one important aspect of the invention, the upper chamber (17) comprises a liquid medium receiving zone (90), the receiving zone (90) being configured so as to be able to carry out a degassing of the liquid medium in the receiving zone (90).

L'invention concerne une colonne de rectification et un procédé utilisant un gaz pour extraire un composant d'un milieu liquide. La colonne de rectification comprend une colonne verticale (10) comprenant une paroi (54) essentiellement cylindrique, la colonne verticale (10) étant divisée par des plaques (20) horizontales perforées en une série de chambres (11, 12,..., 16, 17) superposées, chaque chambre (11, 12,..., 16, 17) comprenant plusieurs cloisons (34, 34I, 34II, 34III, 34IV, 34V) verticales positionnées de manière à former des chicanes, une chambre supérieure (17) comprenant au moins un orifice d'entrée (28) de milieu liquide. Selon un aspect important de l'invention, la chambre supérieure (17) comprend une zone (90) de réception de milieu liquide, ladite zone (90) étant conçue pour mettre en uvre un dégazage du milieu liquide dans la zone (90) de réception.

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