民用煤燃烧污染物排放因子研究

Study on Emission Factors for Pollutants from Residential Coal Combustion

根据自行设计的模拟燃烧-稀释通道采样系统,选用河南、山西、陕西和武汉不同煤种模拟民用燃煤的不同燃烧状态,采集了2种烟煤、2种无烟煤、2种蜂窝煤和1种型煤燃烧排放的颗粒物和气态污染物。将不同煤种燃烧排放物进行了对比分析,结果表明:明烧时不同煤种燃烧排放颗粒物差异明显,烟煤燃烧PM10排放因子明显高于无烟煤和蜂窝煤;燃煤PM10排放因子与燃煤挥发分含量相关。不同煤种燃烧时气体污染物排放因子与煤的形态无明显关联,SO2排放与燃煤硫含量正相关。不同燃烧状态对燃煤气体污染物排放影响不明显。

According to a self-designed simulating combustion-dilution sampling system,different residential coals with different combustion states from Henan,Shanxi,Shaanxi and Wuhan were chosen,the emission particles and gaseous pollutants of two kinds of bituminous coal,two kinds of anthracite coal,two kinds of honeycomb briquette and one kind of briquette were collected. The combustion emissions of different coals were compared and analyzed. The results showed that the combustion emission particles from different kind of coal were obviously different during firing;the emission factors of PM10 from bituminous coal were higher than those from anthracite coal and honeycomb briquette. The emission factors of PM10 were positively correlated with the volatile content in coal. The emission factors for gaseous pollutants from different kinds of coal were not obvious correlated with the form of coal,and the emission of SO2 was positively correlated with the sulfur content in coal. The influence of different combustion states on the gaseous pollutant emission was not obvious.