Method of Evaluating the Liquid-Liquid Dispersion by the Indices Defined Based on Shape of the Drop Size Distribution in Various Impeller Stirred Tanks.

2001 ◽  
Vol 34 (6) ◽  
pp. 790-801 ◽  
Author(s):  
KAZUHIRO SHIMIZU ◽  
MITSUO KAMIWANO ◽  
MEGURU KAMINOYAMA ◽  
KAZUHIKO NISHI
Keyword(s):  
Size Distribution ◽  
Drop Size ◽  
Drop Size Distribution ◽  
Stirred Tanks ◽  
Liquid Dispersion

scholarly journals Measurement of drop size distribution time rate for liquid-liquid dispersion using IPI method

2019 ◽  
Vol 213 ◽  
pp. 02032
Author(s):  
Darina Jasikova ◽  
Michal Kotek ◽  
Bohus Kysela ◽  
Radek Sulc ◽  
Vaclav Kopecky
Keyword(s):  
Image Analysis ◽  
Size Distribution ◽  
Drop Size ◽  
Silicone Oil ◽  
Drop Size Distribution ◽  
Time Rate ◽  
Scaled Model ◽  
Rushton Turbine ◽  
Liquid Dispersion ◽  
Particle Imaging

The liquid-liquid dispersion properties are studied mainly by image analysis (IA) and Interferometric Particle Imaging (IPI). Drop sizes will be investigated in dilute dispersion since in this case the break up phenomena is the dominating and is not affected by phase fraction. Characteristics of the size distribution and the evolution of two liquid-liquid phase’s disintegration were studied. The IPI method was used for subsequent detailed study of the disintegrated droplets. We compared two liquids: Rhodosil Oil 47V50, and Silicone Oil AP1000 under stirrer rate of 540 rpm, and 760 rpm. The experiment run in the scaled model of agitated tank with Rushton turbine.

scholarly journals The Liquid–Liquid Dispersion Homogeneity in a Vessel Agitated by a High-Shear Sawtooth Impeller

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1012
Author(s):  
Roman Formánek ◽  
Radek Šulc
Keyword(s):  
Mass Transfer ◽  
Size Distribution ◽  
Drop Size ◽  
Drop Size Distribution ◽  
High Shear ◽  
Mixing Conditions ◽  
Immiscible Liquids ◽  
Dispersed System ◽  
Liquid Dispersion

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.

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