循环悬浮式烟气半干法脱硫技术的实验研究  

Experimental Study of Semi-dry Flue Gas Desulfurization in Circulating Suspension Fluidized Bed

作　　者：高翔[1] 刘海蛟[1] 滕斌[1] 骆仲泱 倪明江[1] 岑可法[1] 

机构地区：[1]浙江大学热能工程研究所,杭州310027

出　　处：《动力工程》2006年第5期720-725,共6页Power Engineering

基　　金：国家重点基础研究发展规划项目(199902201-05)

摘　　要：建立了烟气处理量1500 Nm3/h的中试试验台,对循环悬浮式半干法烟气脱硫工艺进行了实验研究。研究了运行参数(包括烟气在吸收塔内的停留时间,Ca/S,绝热饱和温距,浆滴粒径,入口二氧化硫浓度,入口烟温等),脱硫灰再循环等因素对脱硫塔内和整个系统脱硫效率的影响。研究结果表明运行参数中绝热饱和温距、钙硫比以及浆滴粒径的变化对系统脱硫效率的影响明显,循环灰的增加有利于提高脱硫效率。An experimental pilot installation for dealing with 1500Nm^3/h flue gas has been erected and studies on semidry desulfurization technology of flue gas in circulating suspended fluidized beds conducted. The influence of operational parameters （including lingering time of the flue gas in the absorption tower, Ca/S ratio, remoteness from the adiabatic saturation temperature, size of the slun＇y drops, SO2 concentration at entrance, flue gas temperature at entrance, etc.） and factors like reeirculation of desulfurized ash, on the desulfurization efficiency of the desulfurization tower and that of the whole system, have been investigated. Study results show that among operation parameters, changes in remoteness from the adiabatic saturation temperature, the Ca/S ratio and the sluny drop size all have a noticeable effect on the system＇ s desulfurization efficiency. An increase of recirculating ash is also advantageous for boosting desulfurization efficiency. Figs 18, tables 2 and refs 9.

关 键 词：环境工程学 循环流化床 烟气脱硫 运行参数 灰循环 

分 类 号：X511[环境科学与工程—环境工程]