煤添加石灰石对燃煤电站汞排放的影响  

The Influence of Limestone on Mercury Emission from Coal-fired Power Plant

作　　者：高洪亮[1] 王向宇[1] 周劲松[2] 骆仲泱 

机构地区：[1]郑州大学化学系 [2]浙江大学能源洁净利用国家重点实验室

出　　处：《电站系统工程》2007年第4期8-10,共3页Power System Engineering

基　　金：国家自然科学基金(50476056);国家863计划项目(2005AA520080)

摘　　要：用自行设计的燃煤烟气汞形态测量装置在燃煤电站锅炉上进行了石灰石对汞排放影响的实验研究,得出如下结论:燃煤添加石灰石对汞的控制有一定的作用,添加石灰石后烟气中汞的含量明显低于添加石灰石前;添加石灰石后烟气中汞的形态分布变化较大,烟气中单质态汞的含量大大降低;添加石灰石后汞主要富集在飞灰中,灰渣中汞的含量很低。The influence of limestone on mercury emission was studied at a coal-fired power plant. The results were as follows： The limestone was useful to mercury control; the total mercury concentration after adding limestone was obviously lower than that of before adding limestone. The speciation distribution of mercury in flue gas became very different when adding limestone. The concentration of oxide Hg became obviously lower after adding limestone. Most oxide Hg lay in fly ashes, most Hg lay in flue gas and very little Hg lay in bottom ashes.

关 键 词：煤 燃煤电站 汞控制 石灰石 

分 类 号：X701[环境科学与工程—环境工程]