关键词: 微通道, 液-液两相流, 流型, 传质, 微通道, 液-液两相流, 流型, 传质

Abstract: The research progress of liquid-liquid two-phase flow in microchannels in recent years was reviewed from flow patterns，mass transfer and application. The observation and design of flow regimes and the examination of the effects of various factors on the flow patterns are two major parts in the study of liquid-liquid two-phase flow pattern. However，the universal flow regime and flow pattern transition lines have not been proposed. The methods of the liquid-liquid two-phase mass transfer research consist of experimental study and numerical simulation. Both methods mainly focus on the research of droplet flow，slug flow and parallel flow. And compared with the qualitative research, the quantitative research of mass transfer is relatively scarce. The application of liquid-liquid two-phase flow is mainly used in the extraction，material synthesis，biological crystallization，etc. Furthermore，the further research of liquid-liquid two-phase ?ow patterns，mass transfer and application were prospected. And in order to promote the industrialization process of liquid-liquid two phase flow, we need undertake in-depth research into two aspects. One is the combination of experimental study and numerical simulation, the other is the extension of its application research.

Key words: microchannels, liquid-liquid two-phase flow, flow patterns, mass transfer, microchannels, liquid-liquid two-phase flow, flow patterns, mass transfer