钙基固硫剂控制燃煤砷排放的实验研究  

Effects of Calcium-based Desulfurizing Absorbents on the Emission of Arsenic During Coal Combustion

作　　者：杨华[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《武汉理工大学学报》2011年第3期126-129,共4页Journal of Wuhan University of Technology

基　　金：国家"十一五"科技支撑计划(2007BAB15B01)

摘　　要：为了更为具体深入地研究钙基固硫剂在煤燃烧过程中的固砷性能,利用高温管式定碳炉燃烧实验,分别考察了钙基固硫剂种类、Ca/S比、粒径及燃烧温度等不同因素对燃煤固砷效率的影响。结果表明,在钙基固硫剂用量Ca/S为2.0,粒径为200目以上时,白云石具有最好的固砷性能且在1 200℃高温下其固砷率仍可达到65.71%,因此在燃煤过程中添加的钙基固硫剂不仅可以固硫,而且对砷的挥发性起到了很好的抑制作用。In order to be more specific research the dearsenic characteristics of calcium-based desulfurizing absorbents during coal combustion.The influence on the dearsenic rate of different factors are investigated including the type,Ca/S,particle of calcium-based desulfurizing absorbents and the combustion temperature.The result shows that the amount of calcium-based desulfurizing absorbents is 2.0,the particle size of calcium-based desulfurizing absorbents top 200 mesh,dolomite has the best dearsenic ability and it＇s dearsenic rate still could reach 65.71% in 1 200 ℃ high temperatures.Therefore the calcium-based desulfurizing absorbents not only can captue suifur but also was good to inhibit the volatile of arsenic during coal combustion.

关 键 词：钙基固硫剂 固砷 燃煤 

分 类 号：X705[环境科学与工程—环境工程]