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CHEN Donglin, YANG Chenhao, WU Kang, LIU Jing. Influences of turbulent agglomeration of fine particles under flue gas parameters[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5084-5090. doi: 10.12030/j.cjee.201609226
Citation: CHEN Donglin, YANG Chenhao, WU Kang, LIU Jing. Influences of turbulent agglomeration of fine particles under flue gas parameters[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5084-5090. doi: 10.12030/j.cjee.201609226
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Influences of turbulent agglomeration of fine particles under flue gas parameters

  • 1.

    Key Laboratory of Efficient and Clean Energy Utilization of Hunan Province, School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410076, China

  • Received Date: 07/03/2017
    Accepted Date: 28/09/2016
    Available Online: 26/08/2017
    Fund Project:
  • The turbulent agglomeration of fine particles is an effective method in the control of emissions of fine particles from coal-fired flue gas. The agglomeration of fine particles was studied with different flue gas parameters, including velocity, temperature, particle concentration and moisture content of the flue gas. The results show that turbulent intensity is significantly improved by increasing flue gas velocity, promoting the agglomeration rate of fly ash particles. When the flue gas velocity was 16 m·s-1, the agglomeration rate of PM2.5 was 44.51%. The flue gas temperature has a limited effect on the agglomeration rate of fine particles above the acid dew point. The higher concentration of particles, the greater number of particles per unit volume in flue. This increases the probability of collisions between particles, and improves the agglomeration rate of fly ash. With a particle concentration of 35 mg·L-1, the agglomeration rate of PM2.5 increased to 52.48%. The lower moisture content of flue gas has little effect on the agglomeration process of fly ash particles.
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Influences of turbulent agglomeration of fine particles under flue gas parameters

  • Received Date: 07/03/2017
  • Accepted Date: 28/09/2016
  • Available Online: 26/08/2017
Fund Project:

Abstract: The turbulent agglomeration of fine particles is an effective method in the control of emissions of fine particles from coal-fired flue gas. The agglomeration of fine particles was studied with different flue gas parameters, including velocity, temperature, particle concentration and moisture content of the flue gas. The results show that turbulent intensity is significantly improved by increasing flue gas velocity, promoting the agglomeration rate of fly ash particles. When the flue gas velocity was 16 m·s-1, the agglomeration rate of PM2.5 was 44.51%. The flue gas temperature has a limited effect on the agglomeration rate of fine particles above the acid dew point. The higher concentration of particles, the greater number of particles per unit volume in flue. This increases the probability of collisions between particles, and improves the agglomeration rate of fly ash. With a particle concentration of 35 mg·L-1, the agglomeration rate of PM2.5 increased to 52.48%. The lower moisture content of flue gas has little effect on the agglomeration process of fly ash particles.

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