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胶黏剂生产行业VOCs组分特征及臭氧生成潜势分析 被引量:8

Emission Characteristics and Ozone Formation Potential Assessment of Volatile Organic Compounds(VOCs)from Adhesive Manufacturing Industry
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摘要 近年来中国环境空气质量得到明显的改善,细颗粒物污染的治理成效显著,PM_(2.5)浓度有所下降,但是对于臭氧污染引起的环境空气质量问题,却越发显著。臭氧污染的防控成为当前环境空气质量的工作重点,而控制挥发性有机化合物(VOCs)臭氧前体物的排放是有效防治臭氧污染的关键。为改善区域环境空气质量,深化各行业企业VOCs排放的精细化管控,采用冷阱浓缩-气相色谱/质谱法测定了胶黏剂生产行业废气VOCs组分浓度,研究了其VOCs组成特征,分析了其臭氧生成潜势(OFP)特征。结果表明:与其他典型有机溶剂使用行业相比,胶黏剂生产行业有组织废气VOCs具有独特的排放特征,其VOCs组分以含氧挥发性有机物(OVOCs)为主,占比81.23%,其中丙酮和2-丁酮是特征的VOCs物种,质量浓度分别为26.570 mg·m^(−3)和13.720 mg·m^(−3)。工艺源废气OFP达到49.506 mg·m^(−3),经过活性炭吸附处理后OFP降至3.161 mg·m^(−3),下降幅度达93.6%。在活性炭脱附再生过程中,催化燃烧(RCO)后排放的废气TVOCs质量浓度达到16.069 mg·m^(−3),OFP为14.739 mg·m^(−3),催化燃烧后排放的废气引起的臭氧污染问题值得关注。相比有组织排放工艺废气,生产车间和厂界无组织排放点TVOCs质量浓度分别为0.342 mg·m^(−3)和0.385 mg·m^(−3),OFP为0.313 mg·m^(−3)和0.354 mg·m^(−3),VOCs质量浓度较低,VOCs污染物主要以有组织排放形式为主。由于胶黏剂生产工艺过程中大量有机溶剂的使用,导致其VOCs污染以丙酮和2-丁酮污染为主要特征,应严格控制企业大规模有机溶剂的使用,加大水性胶黏剂对溶剂型胶黏剂的替代。 In recent years,ambient air quality in China has improved significantly with a remarkable success in the reduction of fine particulate matter.With the steady decline of ambient PM_(2.5)concentration,the problem of ozone pollution has been increasingly prominent and reducing ozone has gradually become the main focus of air pollution control.The key to effective prevention and control of ozone pollution is reducing the emission of volatile organic compounds(VOCs),which are the ozone precursors in the air.To improve the regional air quality and finely regulate the VOCs emission from various industries,this study measured the VOCs component characteristics of waste gas emitted from the adhesive manufacturing process by the cold trap condensation-gas chromatography-mass spectrometry,and determined the ozone formation potential(OFP)of VOCs.The results showed that the VOCs waste gas from adhesive manufacturing industry has its own composition characteristics different from other typical industries using organic solvents.The VOCs were mainly composed of the oxygenated VOCs(OVOCs)which accounted for 81.23%and characterized by the acetone(26.570 mg·m^(−3))and 2-butanone(13.720 mg·m^(−3)).The OFP of the organized process waste gas reached 49.506 mg·m^(−3)and subsequently decreased to 3.161 mg·m^(−3)(93.6%)after activated carbon adsorption.The total VOCs of waste gas from catalytic combustion reached 16.069 mg·m^(−3)with an OFP of 14.739 mg·m^(−3).The ozone pollution caused by VOCs emitted from activated carbon desorption process should draw more attention.Compared to stack emissions,fugitive VOCs emissions inside the plant workshops and around the factory boundaries had lower concentrations of 0.342 mg·m^(−3)and 0.385 mg·m^(−3),respectively.The OFP in the plant workshop and in the factory boundary sites was 0.313 mg·m^(−3)and 0.354 mg·m^(−3),respectively.The VOCs contamination in the adhesive manufacturing process was mainly emitted from stacks.The massive application of organic solvents accounted for the VOCs composition characterized by 2-butanone and acetone.Based on these results,the massive use of organic solvents in the adhesive industry should be discouraged and the waterborne adhesives should be promoted over the solvent-based adhesives.
作者 陈雪泉 孔彬 兰青 余志铨 谢银斯 黄俊毅 CHEN Xuequan;KONG Bin;LAN Qing;YU Zhiquan;XIE Yinsi;HUANG Junyi(Guangdong Polytechnic of Environmental Protection Engineering,Foshan 528216,P.R.China;Guangzhou Inspection and Testing Certification Group Company Limited,Guangzhou 511447,P.R.China;Foshan Ecological Environment Monitoring Station,Guangdong Province,Foshan 528010,P.R.China)
出处 《生态环境学报》 CSCD 北大核心 2022年第4期750-758,共9页 Ecology and Environmental Sciences
基金 国家自然科学基金项目(41201503) 广东高校省级重点平台和重大科研项目(2017GKTSCX039) 广东高校省级重点平台和重大科研项目(2018GkQNCX094) 广东省高职院校高水平专业群建设项目-环境监测与控制技术(GSPZYQ2020004) 广东省高职教育品牌专业建设项目-环境监测与控制技术。
关键词 臭氧(Ozone) 胶粘剂合成 挥发性有机化合物(VOCs) 臭氧生成潜势(OFP) 污染特征 丙酮 2-丁酮 ozone adhesive synthesis volatile organic compounds(VOCs) ozone formation potential(OFP) pollution characteristics acetone 2-butanone
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