化工学报2016，Vol.67Issue(10)：4055-4063,9.DOI:10.11949/j.issn.0438-1157.20160455
水吸收CO2过程界面对流的激光诱导荧光观测
Measurement using laser induced fluorescence technique for interfacial convection during water-CO2 absorption process
摘要
Abstract
An experimental apparatus based on laser induced fluorescence (LIF) technique for measuring interfacial Rayleigh convection in process of water-CO2 absorption was established. By fluorescein sodium and a calibration process, the correlation between the fluorescent light intensity and the concentration of CO2 in water was obtained, and thus an LIF method of quantitative measurement of CO2 concentration in water was established. By established installation and method, the concentration distribution evolution for the Rayleigh convection developed near the surface of water in the water-CO2 absorption process was investigated. Validation of the measurement results was made by checking with the critical value of Rayleigh number reported in literature. The experimental results were also used to analyze the transition mass transfer regime from molecular diffusion to convective diffusion, and the enhancement effect of the interfacial Rayleigh convection on the mass transfer process.关键词
水吸收CO2/激光诱导荧光/界面Rayleigh对流/浓度分布/传质增强Key words
water-CO2 absorption/laser induced fluorescence/interfacial Rayleigh convection/concentration distribution/mass transfer enhancement分类
化学化工引用本文复制引用
李陆星,胡楠,袁希钢..水吸收CO2过程界面对流的激光诱导荧光观测[J].化工学报,2016,67(10):4055-4063,9.基金项目
国家自然科学基金项目（91434204）。@@@@Foundation item：supported by the National Natural Science Foundation of China (91434204) （91434204）
