Dispersion of oil droplets in rotor-stator mixers: Experimental investigations and modeling

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Dispersion of oil droplets in rotor-stator mixers : Experimental investigations and modeling. / Jasińska, Magdalena; Bałdyga, Jerzy; Hall, Steven; Pacek, Andrzej W.

In: Chemical Engineering and Processing: Process Intensification, Vol. 84, 10.2014, p. 45-53.

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@article{e1a1c6a0baed43358468cf75d6d4d507,
title = "Dispersion of oil droplets in rotor-stator mixers: Experimental investigations and modeling",
abstract = "Forming emulsions by mixing of immiscible liquids, water and silicone oils was carried out by applying the in-line high-shear rotor-stator mixers. In experimental part investigations were carried out using experimental rig consisting of two tanks and an in-line Silverson rotor-stator (150/250) MS; the system was operated in a multiple pass (MP) mode, which can be compared with a single pass (SP) mode experiments. Emulsification of 1. wt.% silicone oils (Dow Corning 200 fluid) with viscosities of 9.4, 48 and 339. mPa. s was investigated. Emulsions were stabilized by adding 0.5. wt.% of sodium laureth sulphate. Effects of rotor speed, number of passes and the drop viscosity on the drop size were investigated.Numerical simulations were carried out using the k-. ε model of turbulence and the multiple reference frame method (MRF) linked to the population balance equation. The population balance was expressed and solved using the quadrature method of moments (QMOM). The breakage kernel for drops whose diameter falls within the inertial subrange of turbulence was defined based on the multifractal model of intermittent turbulence.",
keywords = "Breakage, Emulsification, In-line high-shear mixer, Multifractal distribution, Rotor-stator mixer, Turbulence",
author = "Magdalena Jasi{\'n}ska and Jerzy Ba{\l}dyga and Steven Hall and Pacek, {Andrzej W.}",
year = "2014",
month = oct,
doi = "10.1016/j.cep.2014.02.008",
language = "English",
volume = "84",
pages = "45--53",
journal = "Chemical Engineering and Processing",
issn = "0255-2701",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Dispersion of oil droplets in rotor-stator mixers

T2 - Experimental investigations and modeling

AU - Jasińska, Magdalena

AU - Bałdyga, Jerzy

AU - Hall, Steven

AU - Pacek, Andrzej W.

PY - 2014/10

Y1 - 2014/10

N2 - Forming emulsions by mixing of immiscible liquids, water and silicone oils was carried out by applying the in-line high-shear rotor-stator mixers. In experimental part investigations were carried out using experimental rig consisting of two tanks and an in-line Silverson rotor-stator (150/250) MS; the system was operated in a multiple pass (MP) mode, which can be compared with a single pass (SP) mode experiments. Emulsification of 1. wt.% silicone oils (Dow Corning 200 fluid) with viscosities of 9.4, 48 and 339. mPa. s was investigated. Emulsions were stabilized by adding 0.5. wt.% of sodium laureth sulphate. Effects of rotor speed, number of passes and the drop viscosity on the drop size were investigated.Numerical simulations were carried out using the k-. ε model of turbulence and the multiple reference frame method (MRF) linked to the population balance equation. The population balance was expressed and solved using the quadrature method of moments (QMOM). The breakage kernel for drops whose diameter falls within the inertial subrange of turbulence was defined based on the multifractal model of intermittent turbulence.

AB - Forming emulsions by mixing of immiscible liquids, water and silicone oils was carried out by applying the in-line high-shear rotor-stator mixers. In experimental part investigations were carried out using experimental rig consisting of two tanks and an in-line Silverson rotor-stator (150/250) MS; the system was operated in a multiple pass (MP) mode, which can be compared with a single pass (SP) mode experiments. Emulsification of 1. wt.% silicone oils (Dow Corning 200 fluid) with viscosities of 9.4, 48 and 339. mPa. s was investigated. Emulsions were stabilized by adding 0.5. wt.% of sodium laureth sulphate. Effects of rotor speed, number of passes and the drop viscosity on the drop size were investigated.Numerical simulations were carried out using the k-. ε model of turbulence and the multiple reference frame method (MRF) linked to the population balance equation. The population balance was expressed and solved using the quadrature method of moments (QMOM). The breakage kernel for drops whose diameter falls within the inertial subrange of turbulence was defined based on the multifractal model of intermittent turbulence.

KW - Breakage

KW - Emulsification

KW - In-line high-shear mixer

KW - Multifractal distribution

KW - Rotor-stator mixer

KW - Turbulence

UR - http://www.scopus.com/inward/record.url?scp=84910074902&partnerID=8YFLogxK

U2 - 10.1016/j.cep.2014.02.008

DO - 10.1016/j.cep.2014.02.008

M3 - Article

AN - SCOPUS:84910074902

VL - 84

SP - 45

EP - 53

JO - Chemical Engineering and Processing

JF - Chemical Engineering and Processing

SN - 0255-2701

ER -