GAS-LIQUID CONTACT DEVICE OF COLUMN SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a device which can efficiently make gas-liquid contact in gas- liquid contact operation with a small amount of gas, is applicable to the gas-liquid contact operation in various applications and is structurally simple. SOLUTION: This gas-liquid contact device has an introducing port for the liquid to be treated and an outlet for waste gases in the upper part of a column and an introducing port for gas and a takeout port for the liquid to be treated in the lower part of this column, and is provided with two packed debs partitioned by gas backflow preventive plates therebetween. The installation spacing H of the gas backflow preventive plates is <=2 m and the ratio H/D of the column diameter D of the packed column satisfies <=5. The aperture ratio of gas holes at the gas backflow preventive plate is specified to <=5% of the cross-sectional area of the packed column as the entire area of the gas holes. The device described above brings the liquid to be treated and the gas introduced therein into counter-current contact with each other. The device efficiently carries out the gas-liquid contact and is usable, for example, when the components in the gas are absorbed into the liquid side or the components in the liquid are released to the gas side or when the components in the gas are absorbed to the liquid side and simultaneously the components in the liquid are diffused to the gas side or further as a reactor for a gas-liquid contact reaction.