Research Progress on Treatment of Flue Gas from Coal Fly Ash

As electricity increases every year in our country,the emissions from coal-fired power plants fly ash also increase and the environmental problem of fly ash is increasingly serious. Due to the use of fly ash much less than the total emissions,new areas of development and utilization of fly ash become a research hotspot. This paper analyzed the composition and morphology of fly ash. And the main application of fly ash were also discussed. The fly ash as adsorbent were used to remove SO2,CO2 and Hg in flue gas. This paper emphasized the present situation of the SCR denitration catalyst,the removal effect of NOxwith fly ash loading with transition metals as low-temperature SCR denitration catalyst and the preparation method of catalyst. Fly ash has been proved to have good removal effect of SO2,CO2,Hg and NOxin many studies. Because of good application of fly ash in flue gas treatment,the future development direction of fly ash to control pollution was propoesd.