A convenient strategy to intensify the liquid–liquid mass transfer performance in a capillary microreactor system was developed by narrowing the inlet channel of T‐micromixer or adding baffles into the capillary. Various geometrical parameters such as the inlet mode and diameter of the modified T‐micromixer, the number of baffles and interval distance between baffles in the modified capillary were investigated to elaborate the mass transfer intensification mechanism. The liquid–liquid two‐phase flow patterns in new capillary microreactors were captured by a high‐speed camera. Moreover, pressure drops and specific energy dissipation of these modified microreactor systems were studied and a new parameter indicating the ratio of the mass transfer coefficient to the energy dissipation was proposed. This work highlights the modified capillary microreactor systems with embedding baffle units for achieving high mass transfer rates with its advantages over other types of reactors or microreactors considering specific energy dissipation and effective energy utilization efficiency. © 2018 American Institute of Chemical Engineers AIChE J, 65: 334–346, 2019

中文翻译：

---

毛细管微反应器系统中液-液两相传质的强化

通过缩小T型微混合器的入口通道或在毛细管中增加挡板，开发了一种增强毛细管微反应器系统中液-液传质性能的便捷策略。研究了各种几何参数，例如改进的T型微混合器的入口模式和直径，挡板的数量以及挡板在毛细管中的间隔距离，以阐明传质强化机理。新的毛细管微反应器中的液-液两相流型由高速相机捕获。此外，研究了这些改进的微反应器系统的压降和比能量耗散，并提出了一个新的参数，该参数指示传质系数与能量耗散之比。这项工作着重介绍了具有嵌入挡板单元的改进型毛细管微反应器系统，该系统具有较高的传质速率，考虑到特定的能量耗散和有效的能源利用效率，其相对于其他类型的反应器或微反应器具有优势。©2018美国化学工程师学会AIChE J，65：334–346，2019