红外技术2012，Vol.34Issue(3)：168-172,5.
基于太阳光谱的FTIR技术监测石油化工区丙烯的浓度分布
Application of Fourier Transform Infrared Spectroscopy Based on Sun Spectrum to Monitor the Distribution of Propylene from Petrochemical Industry
摘要
Abstract
In the paper, a new method is introduced for real-time monitoring the column concentration of propylene from petrochemical industry, which is based on the technique of Fourier Transform Infrared Spectroscopy (FTIR) by using sun spectrum. The retrieval algorithm of the concentrations of polluted gases based on nonlinear least squares is proposed. Continuous measurements surrounding the pre-monitoring contaminated areas are performed with a closed loop by using self-developed vehicular FTIR system to obtain the regional background reference spectrum, measured spectrum ,while application of a simplified gas radiative transmission model to calculate atmospheric transmittance spectrum, and finally using the nonlinear least squares fitting algorithm for atmospheric transmittance spectrum to achieve the column concentration of propylene surrounding polluted areas. Using this method, remote sensing experiment of propylene in Shanghai Gaoqiao petrochemical zone was done. The experimental result shows that the measured column concentration distribution of propylene well reflects the pollutantD emission and dispersion and proves the availability of the vehicular FTIR technology in monitoring regional gas pollution.关键词
丙烯/被动探测/红外光谱/柱浓度Key words
propylene/ passive detection/ infrared spectroscopy/column concentration分类
数理科学引用本文复制引用
冯书香,徐亮,高闽光,程巳阳,金岭,冯明春,李相贤..基于太阳光谱的FTIR技术监测石油化工区丙烯的浓度分布[J].红外技术,2012,34(3):168-172,5.基金项目
国家自然科学基金项目(No.40905011),国家自然科学基金项目(No.41105022),中国科学院知识创新工程重要方向项目资助(Y0220911310) （No.40905011）
