LIFAC脱硫粉煤灰物相分析  

Study on Mineral Phases of Fly Ash from LIFAC Sulphur Removal Process

作　　者：沈晓冬[1] 周全 钟白茜[1] 熊道银 罗雪莲[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009 [2]南京下关发电厂,南京210011

出　　处：《建筑材料学报》2002年第4期379-384,共6页Journal of Building Materials

摘　　要：采用化学分析 ,TG DSC ,FT IR ,XRD ,SEM/EDS ,偏光显微镜等方法 ,研究了南京下关发电厂炉内喷钙尾部增湿活化 (limestoneinjectionintothefurnaceandactivationofcalciumoxide,简称为LIFAC)烟气脱硫工艺产生的LIFAC脱硫粉煤灰的化学组成和物相组成 ,并与普通粉煤灰作了对比 .结果表明 ,该脱硫粉煤灰除含有普通粉煤灰玻璃相与晶相外 ,还含有活性f Cao,Ca(OH) 2 ,CaSO4。By means of chemical analysis, TG DSC, FT IR, XRD, SEM/EDS and optical microscopy, the chemical composition and mineral phases of fly ash from LIFAC sulphur removal process in Nanjing Xiaguan Power Plant were studied. These of ordinary fly ash were also studied as comparison. The results show that except for glass phase and crystals identical to the ordinary fly ash, active free CaO, Ca(OH) 2,CaSO 4,CaSO 3 and CaCO 3 remainder are detected in LIFAC fly ash.

关 键 词：LIFAC 脱硫 粉煤灰 物相分析 物相组成 发电厂 

分 类 号：TM621[电气工程—电力系统及自动化] X77[环境科学与工程—环境工程]