Options
Local analysis of micro mixing for the Villermaux-Dushman protocol by using the imaging UV-Vis spectroscopy
Citation Link: https://doi.org/10.15480/882.9621
Publikationstyp
Journal Article
Date Issued
2024-05-01
Sprache
English
TORE-DOI
Volume
205
Start Page
822
End Page
829
Citation
Chemical Engineering Research and Design 205: 822-829 (2024)
Publisher DOI
Scopus ID
Publisher
Elsevier ; Inst. of Chemical Engineering
The Villermaux-Dushman protocol with UV-Vis analytics is an established tool to characterize the global micro mixing performance in process equipment. The local mixing process is described by a micro mixing model (incorporation model), originally designed for turbulent flows. The novel imaging UV-Vis spectroscopy used in this work uncovers locally resolved micro mixing phenomena in a laminar split-and-recombine (SAR) mixer unit manufactured from selective laser-induced etching (SLE). The local absorbance is recorded with a high spatial resolution camera through a telecentric lens and post-processed into local concentration fields of components. The method unveils discrepancies of the micro mixing time determined from the conventional incorporation model in laminar flow and the locally recorded mixing process. The micro mixing time rather needs to be seen as a mean micro mixing time instead. Furthermore, the spatial information obtained by the imaging UV-Vis spectroscopy gives insight into local micro mixing and selectivity, yielding new approaches to equipment optimization.
Subjects
Imaging UV-Vis spectroscopy
Incorporation model
Micro mixing
Reactive mixing
Villermaux-Dushman protocol
DDC Class
660: Chemistry; Chemical Engineering
541.3: Physical Chemistry
620: Engineering
Publication version
publishedVersion
Loading...
Name
1-s2.0-S0263876224002508-main.pdf
Type
Main Article
Size
1.77 MB
Format
Adobe PDF