锅炉烟气中汞的存在形态及分析方法的探讨

Discussion on the Existing form and Analysis Method of Mercury in Boiler Flue Gas

探讨了汞在锅炉烟气中的存在形态,并对汞及其化合物的热力学性质进行了分析,针对目前国内的废气中汞的分析方法进行了比较,讨论了各分析方法的适用情况和局限性。研究表明,废气中的汞主要以气态存在于烟气中,部分以吸附形式存在于飞灰和颗粒物中,检测方法的选择应该选择能够同时分析颗粒态汞和气态汞方法。

The existing forms of mercury in boiler flue gas are discussed,and the thermodynamic properties of mercury and its compounds are analyzed.The analysis methods of mercury in waste gas in China are compared,and the applicability and limitations of each analysis method are discussed.The results show that Mercury in the exhaust gas mainly exists in the flue gas in the form of gas,and part of it exists in the fly ash and particulate matter in the form of adsorption.