Investigation of Micromixing Efficiency in a Novel High-Throughput Microporous Tube-in-Tube Microchannel Reactor
Investigation of Micromixing Efficiency in a Novel High-Throughput Microporous Tube-in-Tube Microchannel Reactor
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新型高通量微孔管中管微通道反应器中微混合效率的研究
DOI：
10.1021/ie801424r
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发表时间：
2009-04
影响因子：
4.2
通讯作者：
Wang, Jie-Xin
中科院分区：
文献类型：
--
作者：
Wang, Qi-An;Chen, Gui-Zi;Chen, Jian-Feng;Shao, Lei;Yu, Wen;Wang, Jie-Xin
本文介绍了一种新型的高通量且具有优异微混合性能的微孔管中管微通道反应器（MTMCR）。在MTMCR中，来自内管的一种液体通过微尺度的孔隙被分成许多液滴碎片。
This article presents a new microporous tube-in-tube microchannel reactor (MTMCR) with high throughput and excellent micromixing performance. In the MTMCR, one liquid from the inner tube is divided into many liquid fragments through the microscale pores in the walls, and then these fragments vertically collide with another flowing annular liquid sheet between the inner and outer tubes, generating cross-flow. The annular microchannel allows a mass of fluid to go through it rapidly without enlarging the channel width, thereby achieving a throughput as high as 9 L/min (typical microreactor throughput = 4−100 mL/min). Furthermore, the micromixing performance is expressed in terms of a segregation index, which can be as low as 0.0007. The micromixing time evaluated by the incorporation model reaches the magnitude of milliseconds. In addition, several factors affecting the micromixing such as reactant concentration, flow rate, volume flow ratio, micropore size, and channel width were investigated. The results i...