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佛山市典型铝型材行业表面涂装VOCs排放组成
引用本文:李霞,苏伟健,黎碧霞,龙淼,黎丽莉,张洲,于跃刚,王云鹏,王新明.佛山市典型铝型材行业表面涂装VOCs排放组成[J].环境科学,2018,39(12):5334-5343.
作者姓名:李霞  苏伟健  黎碧霞  龙淼  黎丽莉  张洲  于跃刚  王云鹏  王新明
作者单位:佛山市南海区环境技术中心;中国科学院广州地球化学研究所;中国科学院广州地球化学研究所长沙矿产资源勘查中心;湖南澄源检测有限公司;沈阳顺风实业集团有限公司...;大连中集物流装备有限公司...;佛山市南海区环境技术中心...;江南造船集团有限责任公司...;江西昌河汽车有限责任公司...;中海油常州环保涂料有限公...;中国涂料工业协会;;奇瑞汽车股份有限公司;;常州工程职业技术学院;;珠海冶化机电公司;韶关学...
基金项目:国家自然科学基金项目(41571130031,41703112);有机地球化学国家重点实验室自主课题项目(SKLOGA201603A);佛山市南海区环境技术中心自主课题项目(NHHBJSZX-2017-04)
摘    要:选取佛山市典型铝型材行业不同表面涂装工艺(溶剂型涂料涂装、水性涂料涂装、电泳涂装、粉末喷涂)有组织废气VOCs进行了采样分析.结果表明,溶剂型涂料涂装废气VOCs浓度(63. 90~149. 67 mg·m~(-3))要远大于其他3种涂装工艺(2. 99~21. 93 mg·m~(-3)). VOCs组成来看,溶剂型涂料涂装废气VOCs以芳香烃为主,比例在52. 32%~71. 55%之间,主要污染物包括甲苯、乙苯、二甲苯等苯系物和乙酸乙酯等含氧挥发性有机物(OVOCs).水性涂料涂装废气以OVOCs为主,如乙酸乙酯(48. 59%)、四氢呋喃(8. 43%),芳香烃比例(11. 32%)远低于溶剂型涂料涂装废气.异丙醇是电泳涂装废气中最主要的VOCs化合物,贡献比例高达81. 19%.而粉末涂料涂装废气VOCs污染物主要是丙酮(30. 25%),以及丙烷(15. 48%)、乙烯(12. 15%)、乙烷(9. 35%)、正丁烷(5. 16%)等C2~C4的烷烃和烯烃.臭氧生成潜势(OFP)计算结果表明,溶剂型涂料涂装废气排放单位质量VOCs的臭氧生成潜势(OFP,以O3/VOCs计,下同)最高(3. 89 g·g~(-1)),其次是粉末喷涂(2. 53 g·g~(-1)),而水性涂料涂装和电泳涂装则较低(1. 31 g·g~(-1)和0. 85 g·g~(-1)).溶剂型涂料涂装废气中芳香烃对OFP贡献比例高达93. 28%,有9种C7~C10芳香烃位列OFP排名前10化合物;水性涂料涂装废气中乙酸乙酯、间/对-二甲苯和甲苯的臭氧生成潜势占比最高,分别为23. 24%、21. 76%和17. 07%;粉末涂料涂装废气中的关键活性组分则为乙烯、丙烯和1-丁烯等低碳烯烃,烯烃对其OFP贡献为71. 11%;电泳涂料涂装废气中异丙醇的OFP贡献(65. 08%)明显高于其他组分(6%).

关 键 词:铝型材行业  表面涂装  挥发性有机物(VOCs)  源成分谱  臭氧生成潜势(OFP)
收稿时间:2018/3/31 0:00:00
修稿时间:2018/5/27 0:00:00

Source Profiles and Chemical Reactivity of Volatile Organic Compounds from Surface Coating of Aluminum Products in Foshan, China
LI Xi,SU Wei-jian,LI Bi-xi,LONG Miao,LI Li-li,ZHANG Zhou,YU Yue-gang,WANG Yun-peng and WANG Xin-ming.Source Profiles and Chemical Reactivity of Volatile Organic Compounds from Surface Coating of Aluminum Products in Foshan, China[J].Chinese Journal of Environmental Science,2018,39(12):5334-5343.
Authors:LI Xi  SU Wei-jian  LI Bi-xi  LONG Miao  LI Li-li  ZHANG Zhou  YU Yue-gang  WANG Yun-peng and WANG Xin-ming
Institution:Environmental Technological Center of Nanhai District in Foshan City, Foshan 528200, China,Environmental Technological Center of Nanhai District in Foshan City, Foshan 528200, China,Environmental Technological Center of Nanhai District in Foshan City, Foshan 528200, China,Environmental Technological Center of Nanhai District in Foshan City, Foshan 528200, China,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China,Changsha Center for Mineral Resources Exploration, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Changsha 410013, China,Hunan Chengyuan Testing Co., Ltd., Changsha 410013, China,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China and Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
Abstract:Volatile organic compounds (VOCs) samples were collected and analyzed for the surface coating processes of aluminum products in Foshan. The concentration levels of VOCs from solvent-based coating (63.90-149.67 mg·m-3) are much higher than that from water-based, electrophoretic, and powder coating (2.99-21.93 mg·m-3). With respect to the VOC composition, aromatics are the main VOC group of solvent-based coating emission, ranging from 52.32%-71.55%. Typical species include toluene, ethylbenzene, xylene, and ethyl acetate. The VOCs emitted from water-based coating are mainly oxygenated VOCs, such as ethyl acetate (48.59%) and tetrahydrofuran (8.43%), while the percentage of aromatics (11.32%) is lower than that of solvent-based coating. Isopropanol is the most abundant species of electrophoretic coating emissions, accounting for up to 81.19% of the VOCs. The major VOC compounds of powder coating processes are acetone (30.25%), propane (15.48%), ethylene (12.15%), ethane (9.35%), and n-butane (5.16%). The calculation of the ozone formation potential (OFP) shows that the solvent-based coating has the highest OFP (3.89 g·g-1), followed by powder coating (2.53 g·g-1), while water-based and electrophoretic coating have lower OFPs (1.31 and 0.85 g·g-1, respectively). The most important contributor to OFP of solvent-based coating are aromatics, especially C7-C10 aromatics. The major contributors of water-based coating are ethyl acetate, m/p-xylenes, and toluene, with contributions of 23.24%, 21.76%, and 17.07%, respectively. The key reactive components of powder coating are ethylene, propene, and 1-butene; the sum of alkenes accounts for 71.11% of the OFP. With respect to the contribution of VOCs emitted from electrophoretic coating to the OFP, the percentage of isopropanol (65.08%) is significantly larger than that of other species (<6%).
Keywords:aluminum products  surface coating  volatile organic compounds (VOCs)  source profile  ozone formation potential (OFP)
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