Abstract：The influences of boiler output, excess air coefficient, coal sulphur content on SO2 initial emission concentration in coal combustion were investigated by statistical analysis method using SO2 field data and coal analysis data from 87 medium and small layer burning boilers firing soft coal, actual capacity of boilers£70MW. Furthermore the emission status of SO2 from coal-fired boilers was analyzed and the possibility and feasibility of regulatory control of SO2 emissions of medium and small coal-fired boilers in China were also discussed. The results indicate the SO2 initial emission concentrations present a highly significant positive linear correlation with sulphur contents and are not correlated with boiler output and excess air coefficient under the condition of boiler loads³80%. 94% and 87% of all tested boilers can respectively meet the SO2 Maximum Acceptable Emission Concentration (MAEC) for I and II phases prescribed by national emission standard.
姚芝茂, 邹兰, 王宗爽, 武雪芳. 我国中小型燃煤锅炉SO2排放特征与控制对策[J]. 中国环境科学, 2011, 31(增刊): 1-5.
YAO Zhi-Mao, ZOU Lan, WANG Zong-Shuang, WU Xue-Fang. Emission characteristics and control measures of SO2 from medium and small coal-fired boilers in China. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(增刊): 1-5.
