期刊
CHEMICAL ENGINEERING JOURNAL
卷 417, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2020.128031
关键词
Taylor-Aris dispersion; Acoustic streaming; Microreactors; Chromatography
资金
- European Research Council through the ERC Starting Grant EVO-DIS [679033EVODIS ERC-2015-STG]
This study investigates the reduction of axial dispersion in microchannels through the implementation of acoustics, finding that the long range vortex flow of acoustic streaming can efficiently reduce dispersion by more than two times. These observations pave the way for the development of novel, highly efficient separations and microreactors with uniform residence time distributions.
Flow physicochemical processes, like adsorption/desorption-based separations and chemical conversions in open rectangular microfluidic channels are fundamentally limited by axial dispersion. In this contribution, the implementation of acoustics is investigated to reduce axial dispersion in microchannels. The extent of dispersion reduction is studied by means of plug injections. It was observed that the long range vortex flow of acoustic streaming can efficiently reduce dispersion by more than a factor of two. The observations made in the present study pave the way towards the development of novel, highly efficient analytical or preparative separations and microreactors with uniform residence time distributions. We elaborate on the practical implementations of both areas.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据