公开(公告)号：EP0712655A4

公开(公告)日：1997-04-16

申请号：EP95921165

申请日：1995-06-13

申请人： CHIYODA CHEM ENG CONSTRUCT CO

发明人： NISINO HARUO ,  IDE AKITAKA ,  URATA TOSHIAKI

IPC分类号： B01D53/50 ,  B01D53/78 ,  B01F3/04 ,  B01F5/06 ,  B01F5/10 ,  B01F5/20 ,  B01F13/10 ,  B01J4/00 ,  B01J10/00 ,  B01J19/00 ,  B01D53/18

CPC分类号： B01J10/002 ,  B01D53/504 ,  B01D53/78 ,  B01F3/0451 ,  B01F3/04829 ,  B01F5/0646 ,  B01F5/10 ,  B01F5/20 ,  B01F13/1027 ,  B01J4/001 ,  B01J10/00 ,  B01J19/006 ,  B01J19/0066 ,  B01J2219/00774 ,  Y10S261/54

摘要： The specification discloses a gas dispersion pipe in which a gas is introduced via an upper and thereinto, which is ejected via a lower end into a liquid to carry out a gas-liquid contact operation, and gas-liquid contact method and apparatus using this pipe. The gas dispersion pipe is formed so that an upper end portion thereof has a convergent pipe structure having a downwardly decreasing horizontal cross-sectional area, and/or so that a lower end portion has a nozzle structure having a downwardly decreasing horizontal cross-sectional area. This gas dispersion pipe may be provided therein with a gas guide member, the horizontal cross-sectional area of which increases downward, instead of forming the lower end portion thereof to a nozzle structure.