燃料化学学报2017，Vol.45Issue(7)：889-896,8.
脱硫废水蒸发增强电除尘脱除PM2.5和SO3实验研究
Experimental study on strengthening the electrostatic precipitation removal of PM2. 5 and SO3 by desulfurization wastewater evaporation
摘要
Abstract
In order to study the influence of desulfurization wastewater evaporation ( DWE) on the ESP and the desulfurization performance, an experimental setup with DWE and the coal-fired thermal system was established. The removal of PM2. 5 and SO3 from coal combustion with DWE and the evolution of fine particle size and PM2. 5 and SO3 concentration at ESP outlet were investigated. Also, the mechanism of PM2. 5 and SO3 removal was analyzed. The results show that DWE can increase the average size of particles from 0. 1 μm to 1. 1 μm. Compared SEM image before DWE with that after DWE, the particles reuniting and floc formation between particles are clearly observed. The ESP efficiency is increased by 5%;the removal efficiency of PM2. 5 in number concentration is increased by 25% at the ESP outlet;and the removal efficiency of SO3 by ESP is 60%-80%. The SO3 concentration in flue gas has an effect on PM2. 5 and SO3 removal by ESP. However, the DWE has no effect on the desulfurization efficiency and the pH value of the desulfurization slurry.关键词
脱硫废水蒸发/PM2.5/SO3/电除尘/协同脱除Key words
desulfurization wastewater evaporation/PM2. 5/SO3/electrostatic precipitation/simultaneous control分类
环境科学引用本文复制引用
胡斌,王晓焙,白璐,梁财,杨林军..脱硫废水蒸发增强电除尘脱除PM2.5和SO3实验研究[J].燃料化学学报,2017,45(7):889-896,8.基金项目
The project was supported by the Major State Basic Research Development Program of China(973 program, 2013CB228505).国家重点基础研究发展规划(973计划, 2013CB228505)资助 （973 program, 2013CB228505）
