环境监控与预警
環境鑑控與預警
배경감공여예경
ENVIRONMENTAL MONITORING AND FOREWARNING
2014年
5期
47-49
,共3页
燃煤电厂%锅炉%汞%南京
燃煤電廠%鍋爐%汞%南京
연매전엄%과로%홍%남경
Coal-fired power plants%Mercury%Emissions%Nanjing
对南京市8家国控污染源13台(套)燃煤锅炉进行监测,结果表明,燃煤电厂烟气中汞主要以气相部分汞形态存在,其排放值均达标,为0.16~15.9μg/m3,均远低于标准限值;煤质中汞含量与电厂烟气中汞浓度变化曲线的趋势是大致相似,相关系数为0.91;燃煤电厂机组容量、发电负荷越大,汞平均排放因子呈变小趋势;静电除尘器、湿法脱硫和选择性催化还原法的净化配置对汞的脱除效率最高,达到95.4%。
對南京市8傢國控汙染源13檯(套)燃煤鍋爐進行鑑測,結果錶明,燃煤電廠煙氣中汞主要以氣相部分汞形態存在,其排放值均達標,為0.16~15.9μg/m3,均遠低于標準限值;煤質中汞含量與電廠煙氣中汞濃度變化麯線的趨勢是大緻相似,相關繫數為0.91;燃煤電廠機組容量、髮電負荷越大,汞平均排放因子呈變小趨勢;靜電除塵器、濕法脫硫和選擇性催化還原法的淨化配置對汞的脫除效率最高,達到95.4%。
대남경시8가국공오염원13태(투)연매과로진행감측,결과표명,연매전엄연기중홍주요이기상부분홍형태존재,기배방치균체표,위0.16~15.9μg/m3,균원저우표준한치;매질중홍함량여전엄연기중홍농도변화곡선적추세시대치상사,상관계수위0.91;연매전엄궤조용량、발전부하월대,홍평균배방인자정변소추세;정전제진기、습법탈류화선택성최화환원법적정화배치대홍적탈제효솔최고,체도95.4%。
As Pollution sources 13 set of coal boilers in Nanjing were monitored,the results showed that meraury was mainly in gas phase in the coal-firedpower plant flue gas,the emission concentration was 0.16 ~15.9 μg/m3,and was far lower than the standard limit;Curves trend of mercury content in coal and power plant flue gas were roughly similar,the correlation coefficient is 0.91,thecoal-fired power plant unit capacity,power load inversely affected the average mercury emission factors;Electrostatic precipitator ,wet des-ulfurization and purification with selective catalytic reduction process configuration greatly contributed to removal efficiency of mercury ,up to 95 .4%.