Rotating bar reactor (RBR), a promising equipment for process intensification, has shown excellent micromixing efficiency. However, the mass transfer performance of the RBR, which is a crucial indicator for evaluating the application prospect, is still unclear. In this work, the mass transfer study of RBR was conducted using water-air physical absorption system. Different internals, including gas distributor (GD) for optimizing gas dispersion and liquid disturbing pin (LDP) for promoting liquid disturbance, were employed to enhance the mass transfer. In comparison with RBR without internal, the enhancement of mass transfer was about 38% at rotational speed of 1000 r/min. The gas flow behavior was observed via high-speed photography. In the presence of internals, the bubble size decreased and the distribution was more uniform. The rising velocity of bubbles decreased about 10%. The result indicated that introducing internals was conducive to improving gas-liquid interfacial area and residence time.

旋转棒反应器 (RBR) 是一种很有前途的工艺强化设备，已显示出优异的微混合效率。然而，作为评价应用前景的重要指标的RBR的传质性能仍不清楚。在这项工作中，RBR 的传质研究是使用水-空气物理吸收系统进行的。不同的内部结构，包括用于优化气体分散的气体分布器 (GD) 和用于促进液体扰动的液体扰动销 (LDP)，被用来增强传质。与没有内部的RBR相比，在1000 r/min的转速下，传质增强约38%。通过高速摄影观察气体流动行为。在存在内件的情况下，气泡尺寸减小且分布更均匀。气泡上升速度下降约10%。结果表明，引入内件有利于提高气液界面面积和停留时间。