石化企业对大气细颗粒物PM_(2.5)的贡献源研究

Research on the Contributing Sources to the Atmospheric PM_(2.5) from Petrochemical Enterprises

为研究石化企业工艺流程中对周围环境大气细颗粒物有贡献的生产单元及其源强情况,以某千万吨级石化企业为研究对象,根据细颗粒物的形成机理,分别识别出了该石化企业内所有形成一次细颗粒物的排放源、参与形成二次细颗粒物的无机以及有机前体污染物源。同时分析得出了石化企业生产的油品质量也对其周围大气细颗粒物的质量浓度高低有重要的决定作用。

In order to study the contributing units to the atmospheric PM 2 .5 from the manufacturing process in the petro-chemical enterprise ,a particular petrochemical enterprise with a capacity of tens of millions ton is studied .Based on the for-mation mechanisms of PM2 .5 ,the contributing units in the petrochemical enterprise are recognized ,including the primary fine particulate matter sources as well as the sources that contributed to the formation of both the organic and the inorganic sec-ondary fine particulate matter .What’s more ,it is confirmed that the quality of the oil products in the petrochemical enter-prise also has an important influence on the formation of PM2 .5 .And finally ,some emitting -reducing measures of PM2 .5 are put forward in accordance with the contributing units found in the petrochemical enterprise .