Particulate matter (PM) emitted from stationary sources can be classified into filter particulate matter (FPM) and condensable particulate matter (CPM). Because CPM significantly contributes to total emission, a method and an instrument for testing and measuring CPM were developed on the basis of the principle of dilution and condensation. Then, a parallel sampling analysis of CPM and FPM was carried out at the inlet of a desulfurization system and stack of coal-fired units. Results showed that CPM accounted for 76.73% of the total particulate concentration and the removal efficiencies of FPM and CPM were 94.93 and 65.37%, respectively, after wet flue gas desulfurization (WFGD) and wet electrostatic precipitator (WESP). The microscopic morphology, ion concentration, and organic components of CPM were analyzed. CPM was dispersed after formation, and most of them were smaller than 2.5 μm. The main element components were Al, Ca, Na, Fe, Si, C, O, S, F, and Cl. Na⁺ was the most abundant metal cation in the CPM sample. The main parts of the inorganic anions were F^– and Cl^–. C₁₀–C₁₉ and C₂₀–C₂₉ were the main components of the alkanes, while the alkanes above C₃₀ were only 3.93 and 6.29% at the WFGD inlet and WESP outlet, respectively.

中文翻译：

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超低排放电厂中可凝结颗粒物的去除和排放特性

从固定源排放的颗粒物（PM）可以分为过滤器颗粒物（FPM）和可冷凝颗粒物（CPM）。由于CPM对总排放量有很大贡献，因此根据稀释和冷凝原理开发了一种测试和测量CPM的方法和仪器。然后，在脱硫系统的入口和燃煤机组的烟气中对CPM和FPM进行了平行采样分析。结果表明，湿法烟气脱硫（WFGD）和湿法静电除尘器（WESP）后，CPM占总颗粒物浓度的76.73％，FPM和CPM的去除效率分别为94.93和65.37％。分析了CPM的微观形貌，离子浓度和有机成分。千次曝光出价在形成后就分散了 并且大多数都小于2.5μm。主要元素成分是Al，Ca，Na，Fe，Si，C，O，S，F和Cl。娜⁺是CPM样品中最丰富的金属阳离子。无机阴离子的主要部分是˚F ^-和Cl ^- 。C ₁₀ -C ₁₉和C ₂₀ -C ₂₉是烷烃的主要成分，而C ₃₀以上的烷烃在WFGD入口和WESP出口分别仅为3.93％和6.29％。