我国工业源VOCs排放的源头追踪和行业特征研究

按照“源头追踪”思路,采用排放因子法,对我国工业源VOCs排放量进行了计算.工业VOCs污染产生于4个环节:VOCs的生产,储存和运输,以VOCs为原料的工艺过程,含VOCs产品的使用和排放.结果表明, 2009年我国工业源VOCs排放量约为1206万t.4个环节的污染排放贡献分别为18.1%、6.8%、24.7%和50.3%.合成材料生产、石油炼制和石油化工、机械设备制造等17个排放源的年排放量达20万t以上,其排放量之和占全国总排放量的94.9%.2007~2009年我国工业源VOCs排放量分别为1023,1079,1206万t,年均增长率8.6%.

Source tracing and characteristics of industrial VOCs emissions in China.

VOCs emissions from industrial sources in China were calculated using the emission factor method based on the concept of source-tracing.Industrial VOCs emissions mainly generated from four links: production of VOCs,storage and transport,industrial processes using VOCs as raw materials and use of VOCs-containing products.Industrial VOCs emission in China was 12.06 million tons in 2009,with four above links contributing 18.1%,6.8%,24.7% and 50.3% of VOCs,respectively.Seventeen emission sources including synthetic material production,petroleum refining and petrochemical,machinery and equipment manufacturing generated more than 20×104t VOCs per year,accounting for 94.9% of total emissions.The amount of VOCs emissions in 2007,2008 and 2009 were 10.23,10.79 and 12.06 million tons respectively,increasing with an annual average rate of 8.6%.