| 摘要 |
<p>PURPOSE: To remove contaminants in waste gas with high removing efficiency and economically by bringing waste gas having nearly 100% relative humidity into contact with a cooling liquid of lower temperature than that of the waste gas to condense water vapor in the waste gas by using dust in the waste gas as neuclei. CONSTITUTION: A large-sized adhesion tank 1 is divided into the 1st chamber 5, the 2nd chamber 6 and the 3rd chamber 7 by the 1st partition plate 2 and the 2nd partition plate 3 above the plate 2. When waste gas is fed into the 2nd chamber 6, it is sucked into an absorbent L1 from a dispersing pipe 9 and enters the 3rd chamber 7 from a riser 10. At this time, the waste gas having 100% or nearly 100% relative humidity passed through an introducing pipe connected to the 2nd chamber 6, the 2nd chamber 6, the upper space of the 1st chamber 5, the riser 10 and the 3rd chamber 7 is brought into contact with a cooling liquid of lower temperature than that of the waste gas. Then, water vapor in the waste gas is condensed by using dust in the waste gas as nuclei. Thus, contaminants in the waste gas such as sulfur dioxide and dust are removed.</p> |
