| abstract |
SUMMARY OF THE INVENTION The present invention relates to a counter-current operable bubble column having a perforated tray. Space-time yield of gas-liquid reactions, has a uniform pore distribution perforated tray (5) is to a large extent, the cross-sectional area of each hole is 0.003～3Mm 2, in particular at 0.01 to 0.5 mm 2 Yes, the open area of the perforated tray is 3-20%, especially 3-10%, and can be significantly increased if the bubble column has a liquid passage (6) between adjacent liquid sections. The bubble column can be used to carry out a gas-liquid reaction, for example an oxidation reaction with air, wherein gas and liquid pass through the column in countercurrent. |