Mass Balance of Mercury before and after Coal Combustion

摘要

Mercury has caused significant adverse impacts on human health and the environment. And, coal-fired power production is clearly the largest global source of atmospheric mercury emissions. In this paper, taken CCS power plant as an example, the mass balance of mercury before and after coal combustion is researched. The feed coal, bottom ash, and fly ash samples were collected by experienced technician, and, the flue gas was sampled by Ontario Hydro Method. The ultimate analysts of feed coal was tested, and the mercury content in feed coal, bottom ash, fly ash, and flue gas samples were determined. The mercury input of feed coal, the mercury output of bottom ash, fly ash, and flue gas were respectively calculated. The ratio of output to input was about 1.07, and this result revealed that all the mercury data of feed coal, bottom ash, fly ash and the flue gas were reasonably reliable.