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.

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.

A concept that the driving force of gas-liquid interphase mass transfer comes from the interfacial non-equilibrium is proposed in this paper. For the absorption process, based on the general chemical potential driving force equation, the concentration relation between two phases at interface is derived and solved under dierent conditions as mass transfer occurs, it shows that the interfacial concentration of absorbed component at liquid side is strongly aected by a Biotnumber YO and is bulk concentration dependent. The CO2 interfacial concentration of liquid side in stationary absorption by pure methanol, ethanol and n-propanol absorbent respectively are measured by the use of micro laser holographic interference technique, the experimental results are in good agreement with the computation.

以Fick定律和不可逆过程热力学为基础，结合文献中对扩散系数预测模型的分析，提出了一个氨基酸在水溶液中扩散系数预测的半经验模型。用实验测定的7种氨基酸在水溶液中的扩散系数和一些文献中的扩散系数数据对模型参数进行了拟和。利用该模型对多种氨基酸及尿素在水溶液中的扩散系数进行了计算，计算值与实验值的平均相对误差均小于0.6%。

针对分散相微粒增强难溶气体的吸收过程，本文提出了一个一维非稳态非均相传质的二区模型，并进行了理论求解。根据表面更新理论，得到了增强因子的数学表达式。利用恒温反应釜，对活性炭/水浆料中发生的CO2吸收过程进行了实验研究，测定了不同颗粒浓度及转速下的增强因子。实验结果与模型预测值吻合良好，表明本文模型具有很高的预测精度。