|
| 固定污染源烟气中汞排放连续监测系统 |
| ContinuousM onitoring System for M ercury Em issionsfromFlue Gasof Stationary Sources |
| |
| DOI： |
| 中文关键词: 烟气 固定污染源 连续排放监测系统 |
| 英文关键词: Mercury Flue gas Stationary sources Continuousemission monitoring system |
| 基金项目:国家自然科学基金资助项目 (50576058); 华北电力大学博士学位教师基金资助项目 (93104704) |
|
| 摘要点击次数: 1415 |
| 全文下载次数: 2075 |
| 中文摘要: |
| 介绍了中美两国法规对汞排放连续监测的要求, 分析了烟气中汞排放连续监测的技术难点 , 指出现有的汞在线监测只能得到气态总汞的浓度。 阐述了冷蒸气原子吸收光谱法、塞曼调制原子吸收光谱法、冷蒸气原子荧光法、原子发射光谱法、紫外差分吸收光谱法等气态元素汞的不同分析方法。 通过对湿化学法与热转化单元的比较 , 得出热转化技术更加适合烟气汞的在线监测 。 分析了造成汞测量误差的相关因素 , 并提出了减少误差的措施。 |
| 英文摘要: |
| The requirementsofChinese and the United Statesregulationsfor mercury emissions monitoring were described. The keytechnicaldifficultieswere analyzed forthe mercury continuousemission monitoring and on line monitoring for mercury only gotthe concentration oftotalgas phase mercury. The differentanalytical methodsforthe gaseouselementalmercurywereshowed such ascold vaporatomicabsorption spectrometry, Zee man modulated atomic absorption spectrometry, cold vaporatomic fluorescence spectrometry, atomic emission spectrometry and UVDOAS. By comparing wet chemistry with thermalconversion method,thethermalconversion technology was moresuitablefor Hg CEMSthan othermethods. Therelativefactorsofmercury detectinger rorwere analyzed forthe measurementsto reducethe error. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
