The influence of two diferent sturfactants on gas-liquid mass tranefer were studied by using the real-time micro-holographic interference technique, Through direct observation of interfacial turbulence and the measurement of conteentration neat the interface, mechanism on the influence of surfactant on gas-Liquid mass transfer was discussed.

利用显微激光全息干涉法研究了第三组分对气泡传质的影响. 第三组分分另选择了几种不同类型的表面活性剂. 结果表明，加入微量的表面活性剂，气泡传质时的近界面浓度将发生显著变化。

A micro-holographic interferometer of two-wavelength lasers has been designed and constructed. The concentration profiles close to the interface of 1iquid side were successfully measured for multicomponent gas-liquid mass transfer. It was discovered that the measured concentration at fldistance 0.0lmm away from the interface was far from the thermodynamic equilibrium value, and thus flsteep concentration gradient existed near the interface. The turbulent phenomena near the interface during interphase mass transfer were noted by experiment. The turbulent intensity and time were related to the composition and the components of the system to be studied, and also affected by the velocity of each phase. The concentration field near fronta1 interface was different from that of tai1-vortex area for the mass transfer around a bubble.

There are stilllimited experimental data of liquid diffusion coefficients in literature. Therefore, the experimental investigation and prediction model are of practical and theoretical significance. The diffusion coefficients of L_serine, L-threonine, L-arginine, in aqueous solution at 298.15K were measured respectively by holographic interferometer. The affecting factors of molecular structur and polarity were analyzed and discussed. Finally, a modified semi-empirical model for correlating the diffusion coefficients of solid organic compounds in aqueous solutions at 298.15K was proposed with an adjustable parameter added. The average deviation between model prediction values and experimental ones is less than 0.2, which shows a considerably satisfactory accuracy.

提出了气液相际传质的推动力来源于界面不平衡的概念. 针对气体吸收过程，以普遍化的化学势推动力方程为基础，导出了在有传质通量存在下的两相界面处的浓度关系，并针对不同情况进行了求解，提出了一个反映液相侧动力学状况的量纲1数，y0越大界面处两相越偏离平衡. 界面浓度是与和液相主体浓度密切相关的，为验证本文模型，作者采用显微激光全息干涉技术对甲醇、乙醇、正丙醇静止吸收CO。时的界面浓度进行了测定，实验结果表明了本文模型的正确性。