Experimental Study of Fine Particles Removal in the Desulfurized Scrubbing Flue Gas
Droplets growth by heterogeneous condensation of water vapor as a preconditioning technique for the removal of fine particles from flue gas was investigated experimentally in a wet flue gas desulfurization (WFGD) system using spray scrubber as scrubber.The supersaturated vapor environment was achieved for condensational growth of fine particles by adding water vapor into the phase transition chamber of water vapor,which was above the liquid phase inlet in the desulfurization tower.Fine particles grow in size by vapor heterogeneous condensation with the particles acting as nucleation centers,and then the grown droplets are removed efficiently by high-efficiency wire mesh demister.The results show that particle number concentration decreased significantly by application of heterogeneous condensation of water vapor in the WFGD system.The influence of initial particle number concentration,temperature of inlet flue gas and desulfurization solution,amount of steam added on the removal efficiency of fine particles is presented.The removal efficiency of fine particles decreased with increasing the initial particle concentration.Anyway,heterogeneous condensation in combination with a WFGD system is a highly efficient technique for separation of fine particles in flue gas
coal-fired flue gas:fine particles:removal:heterogeneous condensation:WFGD
Jingjing Bao Linjun Yang Jinpei Yan Xianglin Shen
School of Energy and Environment,Southeast University,Nanjing,Jiangsu 210096,China
国际会议
The 8th International Symposium on Gas Cleaning at High Temperatures(第八届国际高温气体净化技术研讨会 GCHT-8)
太原
英文
189-199
2010-08-23（万方平台首次上网日期，不代表论文的发表时间）