The influence of the third component on gas-liquid mass transfer was studied by use of laser holographic interferometry. Four surfactants were added respectively and experimental results show that the microamount of surfactants can change obviously the concentration near the interface on bubble mass transfer process, which indicated that the third component has a significant effect on the bubble mass transfer process.

对单十气泡传质的近界面浓度场影响因素进行了实验和沦研究。实时激光全息干涉法测量结果表明，运动气泡近界面浓度是一十定态值，受漉速、泡径、温度等因素影响显著；假设该传质过程达到局部平衡，进行热力学分析，得到的结论与实验结果一致。在实验测量结果的基础上，对单个CO2气泡在乙醇中吸收时的传质近界面浓度场进行了数值模拟，取得了良好的结果。

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.

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。