The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth Impeller
The agitation of immiscible liquids or solid suspensions is a frequent operation in chemical and metallurgical industries. The product quality yield and economy of the processes are significantly affected by mixing conditions. Prediction of mean drop size distribution (DSD) during agitation is funda...
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doaj-e3e83de7d4e444c2a6fc489905e3e1192020-11-25T03:49:55ZengMDPI AGProcesses2227-97172020-08-0181012101210.3390/pr8091012The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth ImpellerRoman Formánek0Radek Šulc1Department of Process Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Technická 4, 16000 Prague, Czech RepublicDepartment of Process Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Technická 4, 16000 Prague, Czech RepublicThe agitation of immiscible liquids or solid suspensions is a frequent operation in chemical and metallurgical industries. The product quality yield and economy of the processes are significantly affected by mixing conditions. Prediction of mean drop size distribution (DSD) during agitation is fundamental for processes in many branches of industry where the mass transfer is crucial. This contribution aims to analyze the homogeneity of a dispersed system in a vessel agitated by a high-shear sawtooth impeller. The homogeneity of liquid–liquid dispersion is determined by comparison of Sauter mean diameters and drop size distribution (DSD) from different measured regions and for various dispersion times. The experiments were carried out in a baffled vessel for various impeller speeds. The sizes of droplets were obtained by the in-situ measurement technique and by the image analysis (IA) method.https://www.mdpi.com/2227-9717/8/9/1012dispersionkineticsSauter mean diameterdrop size distributionvesselimmiscible liquids |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Roman Formánek Radek Šulc |
spellingShingle |
Roman Formánek Radek Šulc The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth Impeller Processes dispersion kinetics Sauter mean diameter drop size distribution vessel immiscible liquids |
author_facet |
Roman Formánek Radek Šulc |
author_sort |
Roman Formánek |
title |
The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth Impeller |
title_short |
The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth Impeller |
title_full |
The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth Impeller |
title_fullStr |
The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth Impeller |
title_full_unstemmed |
The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth Impeller |
title_sort |
liquid–liquid dispersion homogeneity in a vessel agitated by a high-shear sawtooth impeller |
publisher |
MDPI AG |
series |
Processes |
issn |
2227-9717 |
publishDate |
2020-08-01 |
description |
The agitation of immiscible liquids or solid suspensions is a frequent operation in chemical and metallurgical industries. The product quality yield and economy of the processes are significantly affected by mixing conditions. Prediction of mean drop size distribution (DSD) during agitation is fundamental for processes in many branches of industry where the mass transfer is crucial. This contribution aims to analyze the homogeneity of a dispersed system in a vessel agitated by a high-shear sawtooth impeller. The homogeneity of liquid–liquid dispersion is determined by comparison of Sauter mean diameters and drop size distribution (DSD) from different measured regions and for various dispersion times. The experiments were carried out in a baffled vessel for various impeller speeds. The sizes of droplets were obtained by the in-situ measurement technique and by the image analysis (IA) method. |
topic |
dispersion kinetics Sauter mean diameter drop size distribution vessel immiscible liquids |
url |
https://www.mdpi.com/2227-9717/8/9/1012 |
work_keys_str_mv |
AT romanformanek theliquidliquiddispersionhomogeneityinavesselagitatedbyahighshearsawtoothimpeller AT radeksulc theliquidliquiddispersionhomogeneityinavesselagitatedbyahighshearsawtoothimpeller AT romanformanek liquidliquiddispersionhomogeneityinavesselagitatedbyahighshearsawtoothimpeller AT radeksulc liquidliquiddispersionhomogeneityinavesselagitatedbyahighshearsawtoothimpeller |
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