摘要
结合现有烟气湿法脱硫装置,评述了燃煤烟气中汞的性质以及形态分布和转化机理、湿法烟气脱硫系统(WFGD)的脱汞性能及其影响因素,简要介绍了WFGD中单质汞的重新排放以及如何抑制;并在此基础上探讨了如何通过提高单质汞的氧化率来提高脱硫液对总汞的脱除效率。
The characteristics and species distribution and conversion mechanism of mercury in coal-fired flue gas, the mercury removal performance of wet flue gas desulphurization system and the influencing factors of its removal efficiency are summarized in consideration of the existing wet flue gas desulphurization device in this paper. The Hg~ re-emission and how to control its re-emission are also introduced briefly. Moreover, how to enhance the removal efficiency of total mercury e. g. by way of increasing the oxidation rate of elemental mercury is reviewed.
出处
《现代化工》
EI
CAS
CSCD
北大核心
2008年第3期31-35,共5页
Modern Chemical Industry
基金
国家自然科学基金资助项目(20576020)
关键词
燃煤烟气
湿法脱硫
汞
氧化剂
coal-fired flue gas
WFGD
mercury
oxidant
