Electric Power ›› 2021, Vol. 54 ›› Issue (4): 199-206.DOI: 10.11930/j.issn.1004-9649.202010086

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Pilot Study of Flue Gas Moisture and Waste Heat Recovery Based on Ceramic Membrane Method

MI Dabin1, GUO Jianglong2, ZHANG Heng3   

  1. 1. Hebei Construction & Investment Group Co., Ltd., Shijiazhuang 050001, China;
    2. Hebei Ji-Yan Energy Science and Technology Research Institute Co., Ltd., Shijiazhuang 050001, China;
    3. School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
  • Received:2020-10-22 Revised:2021-01-22 Published:2021-04-23
  • Supported by:
    This work is supported by the National Key Research and Development Program of China (No.2018YFB0604305)

Abstract: In this paper, in order to study the dynamic performance of ceramic membrane in the applications of flue gas moisture and waste heat recovery in coal-fired power plants, a pilot apparatus was built in a 330 MW coal-fired power station in Hebei Province, in which the ceramic membrane module was integrated with 40 pipes of microfitration membrane. Then, the impacts of flue gas flow and cooling water inlet temperature on the moisture and heat recovery, as well as the latent heat and sensible heat release were studied. The study results show that with the flue gas flow at 9715 m3/h and the cooling water inlet temperature at 18.7 ℃, the moisture and heat recovered by the membrane module reach as much as 43.65 kg/(m2·h) and 106.31 MJ/(m2·h), respectively. The membrane modules have demonstrated remarkable recovery performance in actual industrial production environments and excellent potentials in industrial applications.

Key words: ceramic membrane, flue gas, moisture recovery, vaporization latent heat, pilot-scale test