利用SOF-FTIR技术监测化工厂区VOCs排放  

Monitoring Chemical Plants' VOCs Emissions Based on SOF-FTIR Technology

作　　者：金岭[1,2] 徐亮[1,2] 高闽光[1,2] 童晶晶[1,2] 程巳阳[1] 李相贤[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室,安徽合肥230031 [2]皖江新兴产业技术发展中心环境与气象光电技术及设备分中心,安徽铜陵244061

出　　处：《大气与环境光学学报》2013年第6期416-421,共6页Journal of Atmospheric and Environmental Optics

基　　金："十二五"农村领域国家科技计划课题(2012BAJ24B02-5);中国科学院战略性先导科技专项(XDB05040500);环保公益性行业科研专项(201109007)资助

摘　　要：易挥发有机化合物(VOCs)的来源广泛且参与大气光化学反应,是光化学污染物的主要前体物,也是影响城市和区域大气质量的重要污染物,工业生产过程中多点源、面源和无组织源排放的VOCs是其重要来源。对于多点源、无组织排放源,其所包含的各种污染排放情况复杂且存在较多未知因素,一直缺乏便捷和快速的监测手段。利用车载掩日法通量遥测技术(SOF-FTIR),以太阳直射光的红外辐射作为接收光源,快速扫描工厂污染区域并进行实时的气体泄漏监测,具有结构轻便、便于移动测量、可进行多组分、低浓度、远距离遥测等优点。实验分析表明,该方法可快速大范围地对化工厂区的VOCs排放进行监测并给出其时空分布情况,可为试验地区相关的环保决策提供有效的数据支持。Volatile organic compounds （VOCs）, which participate in photochemical reactions and come from a variety of sources, are main precursor of photochemical pollution, and also the critical pollutants that currently affect Chinese urban air quality. Multi-point source, plane source and unorganized emissions source of industrial production process are significant sources of them. The pollution situation is complex and has many unknown factors, so the convenient and fast monitoring measurement is lacking. The technologyof solar occultation flux based on FTIR（SOF-FTIR）is used, which takes advantage of infrared radiation of direct sunlight, rapid scanning factory pollution area and real-time monitoring. This method with convenient operation and high maneuverability, can be used to analyze multicomponent samples with low concentration Experimental analysis indicates that, this method can monitor the VOCs emission of chemical plant, give out its time and space distribution features rapidly, which will provide effective data support for environmental decision-making.

关 键 词：易挥发有机化合物 车载掩日法 太阳直射光谱 遥测 时空分布 

分 类 号：X831[环境科学与工程—环境工程]