长江三角洲地区基于喷涂工艺的溶剂源VOCs排放特征  

Process-based Emission Characteristics of Volatile Organic Compounds(VOCs) from Paint Industry in the Yangtze River Delta,China

作　　者：莫梓伟[1,2] 牛贺 陆思华[1,2] 邵敏 勾斌[1] 

机构地区：[1]北京大学环境科学与工程学院,北京100871 [2]环境模拟与污染控制国家重点联合实验室,北京100871

出　　处：《环境科学》2015年第6期1944-1951,共8页Environmental Science

基　　金：环境保护公益性行业科研专项

摘　　要：了解挥发性有机物(volatile organic compounds,VOCs)的溶剂源排放特征是制定长江三角洲地区PM2.5和臭氧防控策略的关键.本研究通过罐采样-GC-MS/FID测定了长江三角洲地区重点喷涂行业(集装箱喷涂、造船喷涂、木器喷涂和汽车喷涂业)的VOCs排放特征.结果表明,长江三角洲地区喷涂行业排放的主要VOCs组分为甲苯、二甲苯、乙苯等芳香烃类物质,三者之和占总VOCs的质量分数为79%~99%.生产工艺的不同对VOCs的排放组成影响并不大,废气处理装置中活性炭吸附对VOCs的组成并无明显影响,而催化燃烧的处理过程会使VOCs的排放组成产生显著变化,乙烯排放明显增大,同时也使得催化燃烧处理最大增量反应活性(maximum increment reactivity,MIR)值高于活性炭吸附处理后的MIR值,说明不同的处理措施的使用将影响VOCs对臭氧的生成作用.Understanding the volatile organic compounds( VOCs) emission characteristics from solvent usage industry is essential to reduce PM2. 5and O3 in Yangtze River Delta region. In this work,VOCs source characteristics of ship container,shipbuilding,wood,and automobile painting industry were measured using canister-GC-MS / FID analysis system. The results showed that VOCs emitted from these industrial sectors were mainly aromatics,such as toluene,xylene,and ethylbenzene,accounting for 79%-99% of total VOCs. The VOCs treatment facilities of activated carbon adsorption had little impact on changing the composition patterns of VOCs,while catalytic combustion treatments produced more alkenes. The combustion treatment of VOCs changed the maximum increment reactivity( MIR) of the VOCs emissions,and was thus very likely to change the ozone formation potentials.

关 键 词：VOCS 排放特征 处理装置 溶剂使用 长江三角洲地区 

分 类 号：X788[环境科学与工程—环境工程]