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Rotor-stator mixers : From batch to continuous mode of operation-A review

Håkansson, Andreas LU (2018) In Processes 6(4).
Abstract

Although continuous production processes are often desired, many processing industries still work in batch mode due to technical limitations. Transitioning to continuous production requires an in-depth understanding of how each unit operation is affected by the shift. This contribution reviews the scientific understanding of similarities and differences between emulsification in turbulent rotor-stator mixers (also known as high-speed mixers) operated in batch and continuous mode. Rotor-stator mixers are found in many chemical processing industries, and are considered the standard tool for mixing and emulsification of high viscosity products. Since the same rotor-stator heads are often used in both modes of operation, it is sometimes... (More)

Although continuous production processes are often desired, many processing industries still work in batch mode due to technical limitations. Transitioning to continuous production requires an in-depth understanding of how each unit operation is affected by the shift. This contribution reviews the scientific understanding of similarities and differences between emulsification in turbulent rotor-stator mixers (also known as high-speed mixers) operated in batch and continuous mode. Rotor-stator mixers are found in many chemical processing industries, and are considered the standard tool for mixing and emulsification of high viscosity products. Since the same rotor-stator heads are often used in both modes of operation, it is sometimes assumed that transitioning from batch to continuous rotor-stator mixers is straight-forward. However, this is not always the case, as has been shown in comparative experimental studies. This review summarizes and critically compares the current understanding of differences between these two operating modes, focusing on shaft power draw, pumping power, efficiency in producing a narrow region of high intensity turbulence, and implications for product quality differences when transitioning from batch to continuous rotor-stator mixers.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Batch, Continuous, Emulsification, High shear mixer, Inline, Mixing, Rotor-stator mixer
in
Processes
volume
6
issue
4
article number
32
publisher
MDPI AG
external identifiers
  • scopus:85045102332
ISSN
2227-9717
DOI
10.3390/pr6040032
project
Kontinuerlig emulgering av komplexa livsmedel - ett ramverk för modellbaserad utveckling och för fundamental förståelse
language
English
LU publication?
yes
id
c6466e7e-a837-4138-8134-ad4bb3b4e2c2
date added to LUP
2018-04-19 13:56:40
date last changed
2020-01-16 03:20:05
@article{c6466e7e-a837-4138-8134-ad4bb3b4e2c2,
  abstract     = {<p>Although continuous production processes are often desired, many processing industries still work in batch mode due to technical limitations. Transitioning to continuous production requires an in-depth understanding of how each unit operation is affected by the shift. This contribution reviews the scientific understanding of similarities and differences between emulsification in turbulent rotor-stator mixers (also known as high-speed mixers) operated in batch and continuous mode. Rotor-stator mixers are found in many chemical processing industries, and are considered the standard tool for mixing and emulsification of high viscosity products. Since the same rotor-stator heads are often used in both modes of operation, it is sometimes assumed that transitioning from batch to continuous rotor-stator mixers is straight-forward. However, this is not always the case, as has been shown in comparative experimental studies. This review summarizes and critically compares the current understanding of differences between these two operating modes, focusing on shaft power draw, pumping power, efficiency in producing a narrow region of high intensity turbulence, and implications for product quality differences when transitioning from batch to continuous rotor-stator mixers.</p>},
  author       = {Håkansson, Andreas},
  issn         = {2227-9717},
  language     = {eng},
  month        = {04},
  number       = {4},
  publisher    = {MDPI AG},
  series       = {Processes},
  title        = {Rotor-stator mixers : From batch to continuous mode of operation-A review},
  url          = {http://dx.doi.org/10.3390/pr6040032},
  doi          = {10.3390/pr6040032},
  volume       = {6},
  year         = {2018},
}