燃煤电厂煤中汞含量对烟气中汞排放水平的影响

对江苏省9家燃煤电厂入炉煤中ω（汞）及烟气中ρ（汞）进行了测试，结果表明，9家燃煤电厂入炉煤中ω（汞）为54．5～297 ng／g，平均值为139 ng／g，低于我国煤中ω（汞）的平均值（220 ng／g）。燃煤电厂排放烟气中ρ（汞）为0．08～16．97μg／m^3，远低于《火电厂大气污染物排放标准》（GB 13223－2011）汞及其化合物标准限值（30μg／m^3）。通过对燃煤电厂入炉煤中ω（汞）与最终排放的烟气中ρ（汞）进行分析，两者之间有一定的相关性。

The Effect of Mercury Content in Coal on the Level of Mercury Emissions from Coal fired Power Plant Flue Gas

The mercury in coal and the mercury emissions from flue gas of coal-fired power plants were analyzed in Jiangsu prov-ince.The results showed that,mercury in coal of 9 coal-fired power plants were 54.5～297 ng/g,and the average was 139 ng/g. The average value was lower than the average mercury in coal of China（220 ng/g）.The mercury emissions from flue gas of coal-fired power plants were in the range of 0.08 ～16.97 μg/m^3 in Jiangsu province.It was lower than the mercury and compounds standard（GB 13223-2011）limits（30 μg/m^3）of china.By analyzing the mercury in coal and the mercury emissions from flue gas of coal-fired power plants,it was found that there was a certain proportional relationship between the two.