| 摘要 |
PURPOSE:To uniformize the flow of gas to a large number of gas-liquid dispersing devices, by placing the recirculation pump of the liquid in a cylindrical body outside said cylindrical body and forming a recirculation liquid discharge port and a recirculation liquid supply port into a concentric circular double pipe structure at the central part of the lower part of the cylindrical body. CONSTITUTION:A gas-liquid dispersing plate equipped with a large number of gas-liquid dispersing devices 9 and a recirculation liquid take-out pipe 5 are provided in the cylindrical body 1 being the main body of a reactor. A recirculation pump 6 is placed outside the cylindrical body 1 and a recirculation liquid is uniformly supplied to the liquid phase part (b) in a plenum chamber from a recirculation liquid take-out pipe 5 and a recirculation liquid supply pipe 7, both of which form a concentric circular double pipe structure (5 is set to an inner pipe) at the central bottom part of the cylindrical body 1, in an axially symmetric manner. A treatment liquid is supplied to the plenum chamber along with the recirculation liquid through the recirculation liquid supply pipe 7. By this method, the liquids can be almost uniformly supplied to the plenum chamber and the variation of the gas-liquid interface being formed can be reduced. |
