燃煤飞灰与烟气汞作用的实验研究  

Experimental Research on Flue Gas Mercury Removal by Coal-combustion Derived Fly Ash

作　　者：施雪[1] 张锦红[1] 吴江[1] 何平[1] 石宙[1] 邬宇[1] 贺文龙[1] 蔡雁南[1] 杨发云[2] 刘仕君[2] 

机构地区：[1]上海电力学院产业管理办公室,上海200090 [2]宝山钢铁股份有限公司,上海201900

出　　处：《华东电力》2014年第1期189-192,共4页East China Electric Power

基　　金：国家自然科学基金项目(50806041);上海市科技创新行动计划项目(11dz1203402;12dz1201702;11dz1203400;12dz1201700);上海市教委重点学科项目(第五期)J51304~~

摘　　要：采用垂直炉实验系统评价飞灰对烟气汞的脱除效率,利用小角散射(SAXS)和电镜扫描(SEM)等手段对燃煤飞灰进行表征,深入分析了入射光散射强度以及飞灰表面特征对飞灰吸附汞效率的影响,并利用SAXS结果计算了飞灰的分形维数。结果发现入射光散射强度对飞灰汞吸附效率有影响,且入射光散射强度越高,飞灰吸附汞效率越高,而分形维数对飞灰吸附汞效率没有直接影响。In this paper, the flue gas mercury removal efficiency by coal-combustion derived fly ash was experimental-ly evaluated on a vertical furnace system. The coal-combustion derived fly ash was characterized by using small angle X-ray scattering （SAXS） and scanning electron microscopy （SEM）, and the effects of the incident light scattering in-tensity and fly ash surface features on the mercury adsorption efficiency of fly ash were analyzed. The fractal dimen-sion of the fly ash was calculated by the data of SAXS. The results showed that the incident light scattering intensity may affect mercury adsorption efficiency of fly ash, and the higher the incident light scattering intensity, the higher the mercury adsorption efficiency by fly ash; however the fractal dimension has no direct effect on the mercury adsorp-tion efficiency by the fly ash.

关 键 词：燃煤飞灰 烟气汞 小角散射 

分 类 号：TM621.8[电气工程—电力系统及自动化]