학술논문
Effect of intermittent water vapor addition on the removal efficiency of HCl and SOX in dry scrubbing of waste incineration flue gas / 水蒸気間欠添加がごみ焼却排ガス中HClおよびSOX除去効率に及ぼす影響
Document Type
Journal Article
Author
Source
Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management. 2023, :405
Subject
Language
Japanese
Abstract
In this study, the direct addition of water vapor to the waste incineration flue gas was investigated to improve the acid gas removal efficiency of dry scrubbing using slaked lime. Using a laboratory-scale experimental apparatus simulating a bag filter (BF), the effect of water vapor addition conditions on the reaction mechanism of slaked lime and acid gas as well as the acid gas removal rate was evaluated. As a result, the removal efficiency of hydrogen chloride was most improved when the water vapor was added by the 200% of the amount of slaked lime deposited on the BF. However, the improvement of the removal efficiency of sulfur oxides was not observed under the coexistence of hydrogen chloride even in the same condition of water vapor addition. For the application of this method to the actual dry scrubbing system, further investigation should be performed in relation to the operating conditions such as the numbers and intervals of water vapor addition.