Xu Chen-Xi, Chen Jun-Hui, Han Li, Wang Ji-Qin, Wang Bo
Sichuan Academy of Environmental Sciences, Chendu 610000, China.
Huan Jing Ke Xue. 2020 Jul 8;41(7):3031-3041. doi: 10.13227/j.hjkx.201911118.
In this study, typical industries that act as sources of volatile organic compound (VOCs) emission in Sichuan, including automobile manufacturing, wooden furniture, wood-based panel manufacturing, and paint production, were selected and GC-MS national standard analysis to study the organized emission VOC components of every procedure. The spectra of VOCs in the automobile industry were obtained by means of total emission normalization. The results showed that the VOC components of automobile manufacturing, wooden furniture, and oil paint manufacturing enterprises were mainly aromatic hydrocarbons and oxygen-containing compounds, accounting for more than 70% of total VOCs; the emissions from automobile part manufacturing enterprises were mainly aromatic hydrocarbons, with a ratio of over 90%. The proportion of oxygen-containing compounds in the wood-based panel manufacturing industry was found to be up to 97%, mainly caused by the emission of formaldehyde, which accounts for 75%, followed by isopropanol, acetone, and other substances. The proportion of aromatic hydrocarbon and olefin in synthetic resin enterprises is relatively high at over 80%. The olefin species are mainly 1,3-butadiene and 1-butene. Although there are some differences in emission species between different industries, they are mainly composed of aromatic hydrocarbons and oxygenates. Therefore, it is necessary to improve the identification and control of components with high concentration, activity, and toxicity for aromatic hydrocarbons and oxygenates. The source, process, and end process control should be monitored to achieve the effect of total emission reduction.
本研究选取了四川省挥发性有机化合物（VOCs）排放源的典型行业，包括汽车制造、木制家具、人造板制造和涂料生产，并采用气相色谱-质谱联用仪国家标准分析法研究各工序的有组织排放VOCs成分。通过总排放归一化的方式获取汽车行业VOCs的光谱。结果表明，汽车制造、木制家具和油漆制造企业的VOCs成分主要为芳烃和含氧化合物，占总VOCs的70%以上；汽车零部件制造企业的排放主要为芳烃，占比超过90%。人造板制造行业中含氧化合物的比例高达97%，主要是由占75%的甲醛排放引起的，其次是异丙醇、丙酮等物质。合成树脂企业中芳烃和烯烃的比例相对较高，超过80%。烯烃种类主要为1,3-丁二烯和1-丁烯。虽然不同行业的排放种类存在一些差异，但它们主要由芳烃和含氧化合物组成。因此，有必要加强对芳烃和含氧化合物中高浓度、高活性和高毒性成分的识别与控制。应监测源头、过程和末端过程控制，以实现总减排效果。
