中小型燃煤烟气脱硫脱硝实验研究  

RESEARCH ON DESULFURIZATION AND DENITRIFICATION OF FLUE GASES FOR MEDIUM AND SMALL SIZE COAL BURNING DEVICES

作　　者：李爱民[1] 龚铁强[1] 雷军[1] 

机构地区：[1]湖南省煤炭科学研究所,湖南长沙410004

出　　处：《能源环境保护》2008年第4期25-27,64,共4页Energy Environmental Protection

基　　金：国家科技部科研院所社会公益研究专项资金项目(2003DIB2J095)

摘　　要：介绍了选用熟石灰Ca(OH)2作脱硫剂的半干法烟气脱硫工艺来脱除SO2;选用NH3作还原剂,活性炭作催化剂,在低温(<200℃)和氧气存在的条件下选择性催化还原(SCR法,属干法)NOX的技术来脱除NOX。实验表明:脱硫率>92.5%,脱硝率>74.6%,半干法烟气脱硫工艺和干法(SCR法)烟气脱硝技术适宜于中小型燃煤烟气的脱硫脱硝。This paper introduces that the flow diagram of sennidry process flue gas desulfiLrization using Ca（OH） 2（aq） desulfurizer removes S02 from flue gas, the technology of selective catalytic reduction（SCR, Dry process）of NOx at low tempreature（ 〈 200℃ ） in the presence of oxygen with NH3 as reducatant and activated carbon as catalyst removes Nox from flue gas.The result shows that the removal efficiencies of SOn and NOx are over 92.5% and 74.6% .The flow diagram of sennidry process flue gas desulfurization and SCR are suitable for desulfurization and denitrification of flue gases for medium and small size coal burning devices.

关 键 词：熟石灰 半干法 烟气脱硫 活性炭 NH3 选择性催化还原 烟气脱硝 

分 类 号：TQ534[化学工程—煤化学工程]