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。

界面湍动对相际传质具甫重要影响。利用显微激光垒息干涉技术研究了CO2在乙醇一水溶液中吸收过程的界面湍动情况。实验观察界面湍动强度与溶液浓度的关系。结果表明，乙醇浓度越高，界面湍动强度越大，文中对此进行了分析和讨论。

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.

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。

Ths paper focuses on me mechanism of interfacial mass transfer of a single bubble. based on chemi cal potential driving force, an approach for calculating interracial concentration in practical process is proposed. The absorption proc esses of bubble under bom quiescent an d mobile conditions ale analyzed and discussed respectively. For a staftonary absorption. only in me case of liquid bulk concentration near saturated value. Me tefacial concentration could close to me equilibrium value：For a moving bubble, under ordinary operating condi. Tion (y0>1), me interfacial concentration is far from its equilibrium. Only under bulk concentration near saturated value or a smaller Yo (Yo<0.1) which may involve me complication of additional resistance at interface induced surface contamination or sufactant added. me interfacial concentration could be approximate to equilibrium value. The interfacial concentration close to me interface on liquid side for a single CO, bubble absorbed by methanol measured using a modern optical instrumentation in which me laser holographic interference memOd is adopted wim a real-time and amplification technique. Experimental results show mat me interfacial concentration decreases significan tly with increasing Re an d is far from the eq uilibrium one in a larger Re ran ge. Experiments validate proposed mode1.