Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

A device for continuous and flexible adjustment of liquid-liquid slug size in micro-channels

A device for continuous and flexible adjustment of liquid-liquid slug size in micro-channels In liquid-liquid segmented flow slug size determines the interfacial area as well as the intensity of Taylor vortices and is thus an important operational parameter, decisive for mass transfer performance of biphasic micro-reactors and -extractors. Resulting slug sizes conventionally depend on material properties, flow and geometric parameters of the mixing point of the liquids. To evade tedious material specific design of the mixing point, modular devices, which allow active adjustment of developing slug sizes, are desirable. Such a slug generator is presented in this study. By altering the mixing point geometry during operation, it allows continuous manipulation of the slug formation process and thus slug size. The slug generation process in this device is investigated experimentally and with help of CFD simulations in order to identify its geometric influences. The findings lead to an optimized device design, whose capability to generate slugs of adjustable size and with low dispersity is demonstrated experimentally.Graphical Abstract[graphic not available: see fulltext] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Flow Chemistry Springer Journals

A device for continuous and flexible adjustment of liquid-liquid slug size in micro-channels

Loading next page...
 
/lp/springer-journals/a-device-for-continuous-and-flexible-adjustment-of-liquid-liquid-slug-KfPncMtx0F
Publisher
Springer Journals
Copyright
Copyright © Akadémiai Kiadó 2020
ISSN
2062-249X
eISSN
2063-0212
DOI
10.1007/s41981-019-00064-7
Publisher site
See Article on Publisher Site

Abstract

In liquid-liquid segmented flow slug size determines the interfacial area as well as the intensity of Taylor vortices and is thus an important operational parameter, decisive for mass transfer performance of biphasic micro-reactors and -extractors. Resulting slug sizes conventionally depend on material properties, flow and geometric parameters of the mixing point of the liquids. To evade tedious material specific design of the mixing point, modular devices, which allow active adjustment of developing slug sizes, are desirable. Such a slug generator is presented in this study. By altering the mixing point geometry during operation, it allows continuous manipulation of the slug formation process and thus slug size. The slug generation process in this device is investigated experimentally and with help of CFD simulations in order to identify its geometric influences. The findings lead to an optimized device design, whose capability to generate slugs of adjustable size and with low dispersity is demonstrated experimentally.Graphical Abstract[graphic not available: see fulltext]

Journal

Journal of Flow ChemistrySpringer Journals

Published: Jun 4, 2020

There are no references for this article.