Study on Generation, Hazard, Testing and Emission Characteristics of SO3 in Flue Gas of Coal-fired Power Plants

doi:10.12096/j.2096-4528.pgt.19096

Abstract

Abstract:

The emission of non-conventional pollutants such as SO₃ in the flue gas of coal-fired power plants has not been effectively controlled. Its hazards mainly include low-temperature corrosion, equipment blockage and environmental pollution, which mainly come from the combustion of coal. The content of S_ar in 200 kinds of coal in China was statistically analyzed, the range is 0.11%-3.47%, the average value is 0.82%. The SO₃ sampling methods mainly include control condensation and isopropanol absorption method. The combination of the two methods can significantly improve the capture rate of SO₃ and the accuracy of test data. Based on field measurement and literature survey, the SO₃ emission characteristics of existing coal-fired power plants were characterized, which can provide reference for future control of SO₃ emission for coal-fired power plants.

Key words: coal-fired power plant, SO₃ emission, ultra-low emission, test method

Zhaomei CHEN,Hanxiao LIU,Ying CUI,Gaofei GUO,Yincan MENG,Meiling LIU,Haitao HE,Xiaowei FANG. Study on Generation, Hazard, Testing and Emission Characteristics of SO₃ in Flue Gas of Coal-fired Power Plants[J]. Power Generation Technology, 2019, 40(6): 564-569.

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Study on Generation, Hazard, Testing and Emission Characteristics of SO₃ in Flue Gas of Coal-fired Power Plants

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