Experimental study on removal of PM2.5 from combustion by vapor heterogeneous condensation

被引：0
|
作者：
Zhang, Xia [1 ]
Yang, Linjun [1 ]
Sun, Lujuan [1 ]
Zhang, Yu [1 ]
Yan, Jinpei [1 ]
Shen, Xianglin [1 ]
机构：
[1] Key Laboratory of Clean Power Generation and Combustion Technology, Southeast University, Nanjing 210096, China
来源：
Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2008年 / 38卷 / 01期
关键词：
Coal combustion - Condensation - Dust - Separators - Surface properties - Water vapor;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on enlargement of fine particles by heterogeneous condensation of water vapor, removal of PM2.5 from combustion was investigated experimentally. The results show that vapor heterogeneous condensation combined with normal inertial dust separator can effectively remove PM2.5 of which the removal efficiency can reach more than 80% and 60% from coal and oil combustion respectively. Surface properties of the condenser, physical-chemical characteristic of fine particles and the super saturation have important effect on PM2.5 growth and removal. The condenser with low surface energy can obviously improve the growth and removal of PM2.5. The removal efficiency of strong hydrophobic PM2.5 from oil combustion is much lower than PM2.5 from coal combustion. Increasing the condensable mass of water vapor properly can also improve PM2.5 growth and removal.
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页码：81 / 85
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