| 湿法脱硫协同蒸汽相变脱除燃煤PM_(2.5)的试验研究 |
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| 引用本文： | 颜金培,杨林军,鲍静静,蒋振华,黄永刚,沈湘林.湿法脱硫协同蒸汽相变脱除燃煤PM_(2.5)的试验研究[J].动力工程,2009,29(1). |
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| 作者姓名： | 颜金培 杨林军 鲍静静 蒋振华 黄永刚 沈湘林 |
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| 作者单位： | 东南大学,能源与环境学院,南京,210096
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 对燃煤细颗粒在湿法烟气脱硫(WFGD)系统中的脱除效果进行了试验研究.通过向塔内添加蒸汽以促进细颗粒的凝结长大,实现脱硫过程协同脱除燃煤细颗粒,并分析了不同操作参数对细颗粒和SO2脱除效率的影响.结果表明:在常规湿法烟气脱硫过程中,PM10的质量浓度脱除效率较高,约为55%,而PM2.5质量和数量浓度脱除效率很低;通过在洗涤塔内添加蒸汽,可以有效提高PM10和PM2.5的脱除效率,脱除效率随液气比的增大而提高,特别是数量浓度的脱除效率;燃煤细颗粒的脱除效率随塔内烟气过饱和度的增大而提高,而脱硫效率几乎不受塔内过饱和度的影响,均能稳定在75%左右;随脱硫塔入口烟气温度的升高,细颗粒的脱除效率降低.
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| 关 键 词： | 燃煤细颗粒 湿法脱硫 蒸汽相变 脱除 CaCO3 浆液 洗涤 |
Wet Flue Gas Desulfurization and Simultaneous Removal of PM_(2.5) Fine Particles from Coal Combustion by Heterogeneous Condensation |
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| YAN Jin-pei,YANG Lin-jun,BAO Jing-jing,JIANG Zhen-hua,HUANG Yong-gang,SHEN Xiang-lin.Wet Flue Gas Desulfurization and Simultaneous Removal of PM_(2.5) Fine Particles from Coal Combustion by Heterogeneous Condensation[J].Power Engineering,2009,29(1). |
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| Authors: | YAN Jin-pei YANG Lin-jun BAO Jing-jing JIANG Zhen-hua HUANG Yong-gang SHEN Xiang-lin |
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| Affiliation: | School of Energy and Environment;Southeast University;Nanjing 210096;China |
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| Abstract: | The removal of fine particles from coal combustion in wet flue gas desulfurization(WFGD) process was investigated experimentally.Simultaneous particle removal in WFGD process was realized by adding steam into the scrubber to enlarge the particle size based on heterogeneous condensation principle.Influence of operational parameters on removal efficiency of both fine particles and SO_2 were analyzed.Results show that in conventional WFGD process,the removal efficiency on mass concentration of PM_(10) is relat... |
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| Keywords: | PM2 5 |
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