Although conventional coal-fired pollutants have achieved ultra-low emissions,the control issues of emerging pollutants such asSO3 and condensable particulate matter have not yet been resolved. To achieve the collaborative control of them,this paper studies thecollaborative removal technology of various pollutants in coal-fired flue gas during the condensation scrubbing process. In theexperiments,a flow of real flue gas emitted from a 440 t/h coal-fired circulating fluidized bed boiler was treated with humidificationscrubbing and condensation scrubbing successively. The synergistic removal of various pollutants by the condensation scrubbing undermultiple operating conditions were investigated,and the optimal operating parameters were determined. The results showed that duringthe flue gas condensation scrubbing process under the liquid-to-gas ratio of 4.4~5.4 L/m and the scrubbing temperature of 18.8~28.1℃,the removal efficiencies for filterable particulate matter,SO3,SO2,and condensable particulate matter were 81.9%~100%,85.5%~93.5%,84.8%~99.9%,and 14.8%~55.4% respectively,suggesting that the condensation scrubbing technology can effectivelysynergistically remove various pollutants,which is of great significance for further improving the level of coal-fired pollutant control.
Experimental study on synergistic removal of multiple pollutants by flue gascondensation scrubbing
2025 No. 03
85
59
Authors:
- HUI Bao\'an
- CHAI Dongqing
- XU Xuezhi
- WANG Lianxi
- WANG Yimin
- LI Qian
- YIN Xiaojie
- HUANG Yu
- LIU Xuexia
- BAO Wenfei
- ZHANG Dongyu
- LI Yuzhong
Unit:
- Shandong Yankuang Jisan Electric Power Co.,Ltd.
- School of Nuclear Science,Energy and power Engineering,ShandongUniversity
- Shandong Qixing Intelligent Equipment Technology Co.,Ltd
Abstract:
Keywords:
- coal-fired pollutant control
- fine particulate matter
- sulfur trioxide
- condensable particulate matter
- flue gas desulfurization
- flue gas condensation
- synergistic removal
Citation format:
惠保安(1983—),男,山东安丘人,学士。E-mail:huibaoan@163.com
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Citation format:
HUI Bao'an,CHAI Dongqing,XU Xuezhi,et al. Experimental study on synergistic removal of multiple pollutants by fluegas condensation scrubbing[J].Clean Coal Technology,2025,31(3):166−173.
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