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Particle size distributions, concentrations, morphological characteristics, and elemental compositions of eight fluidized bed boilers with different capacities and different dust collectors were determined experimentally. The PM2.5 particle concentration and mass concentration were monitored in real-time before and after the boiler dust collector by electric low pressure impactor, and the physical and chemical properties of PM2.5 were analyzed by membrane sampling. We found that the PM2.5 particle concentration produced by industrial fluidized bed boilers displayed bimodal distributions, peaking at 0.2 μm and 0.76 μm, the formed mechanism of these two parts particles is vaporization-condensation of mineral matter and residual ash particles and the adsorbent wear or tear. Mass concentration exhibits a single peak characteristic with a peak at 0.12 μm. The removal efficiency for PM2.5 of dust collectors varies with different dust removal mechanisms. The electrostatic precipitator and bag filter have high dust removal efficiency, and the water film dust collector has low dust removal efficiency. The normal operation of the bag filter has a great influence on the dust removal efficiency. The physical and chemical properties of PM2.5 showed that the single-particle morphology was mainly composed of irregular particles, containing a small amount of solid spherical particles and more agglomerates. The content of Si and Al in PM2.5 elemental analysis is the highest, which decreases after a dust collector. Some fluidized bed boilers use desulfurization in the furnace, which has great influence on the mass concentration of Ca and S elements, and the lowest Hg content in trace elements, about a few ppm.
PAPER REVISED: 2019-11-08
PAPER ACCEPTED: 2019-12-05
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  1. Rabl, Ari. Interpretation of Air Pollution Mortality: Number of Deaths or Years of Life Lost
  2. Morawska L, Zhang J. Combustion sources of particles. 1. Health relevance and source signatures
  3. Yin Yong-wen, Cheng Jin-ping, Duan Yu-sen, Wei Hai-ping, Ji Ruo-xu, Yu Jin-lian, Yu Hong-ran. Correlation Analysis Between the PM2.5, PM10 Which were Taken in the Hazy Day and the Number of Outpatient About Breathing Sections, Breathing Sections of Pediatrics in Shanghai
  4. Yuan-Hang Zhang. Characteristics and sources of fine particulate pollution in Beijing //Compiled by the Chinese engineering academy. Chinese academy of engineering engineering technology BBS, Beijing, 2001:13-14.
  5. Ji-Ming Hao, Lei Duan, Honghong Yi. Physicochemical characteristics of inhalable particulate matter from combustion sources
  6. Xiao Zhi-mei,Bi Xiao-hui,Feng Yin-chang, Wang Yu-qiu, Zhou Jun, Fu Xiao-qin, Weng Yan-bo, Source apportionment of ambient PM10 and PM2.5 in urban area of Ningbo City, Res. Environ. Sci. 2012, 25(5) 549-555.
  7. Chengrui Qu C, Changsui Zhao, Wu Zhou, Lunbo Duan. Emission properties of PM2.5 derived from CFB under O2/CO2 atmosphere
  8. Goodarzi F. Morphology and chemistry of fine particles emitted from a Canadian coal-fired power plant
  9. Dun-Xi Y, Ming-Hou X, Hong Y, Xiao-Wei L, Ke Z. Effective identification of three modes of coal-burning particulate matter
  10. Terttaliisa Lind, Esko I. Kauppinen; Willy Maenhaut, Anup Shah, Frank Huggins. Ash Vapporization in Circulating Fluidized Bed Coal Combustion
  11. Song-song Zhang, Guo-li Qi, Jian Guan, Shuang Pan, Juan Li, Qian Du, Jian-min Gao.The Removal Efficiency of PM2.5 with Different Particle Size of Dust Removers. 2016 International Conference on Advanced Manufacture Technology and Industrial Application.
  12. Shenping W. On comparison of the static precipitator and the bag house
  13. Qu Cheng-rui, Bin X u, Jian W u, Jian-Xin L, Xue-Tao Wang. Effect of limestone addition on PM2.5 formation during fluidized bed coal combustion under O2 /CO2 atmosphere
  14. Zhao Zhifeng, Du Qian, Zhao Guangbo, Gao Jianmin, Dong Heming, Cao Yang, Han Qiang, Su Lipeng, Yuan Pengfei. Field experimental research on PM2.5 generation and emission characteristics of pulverized coal and CFB boilers in power plants
  15. Zhang Weifeng, Hu Manyin, Liu Tongxin, Liu Zhong, Hu Zhiguang. Effect of desulfurization in CFB on the electrostatic precipitator
  16. Luan-Shui He. Hg pollution in Lanzhou
  17. Li Ruili, Chai Min-wei, Qiu Guo-yu, He Bei. Mercury and Copper Accumulation during Last Fifty Years and Their Potential Ecological Risk Assessment in Sediment of Mangrove Wetland of Shenzhen, China
  18. M, Harada. Congenital minamata disease: Intrauterine methylmercury poisoning
  19. Ministry of environmental protection, general administration of quality supervision, inspection and quarantine. Emission standard of air pollutants in thermal power plants: GB 13223-2011
  20. Ministry of environmental protection, general administration of quality supervision, inspection and quarantine. Emission standard of boiler air pollutants: GB 13271-2014

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