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Theories of chromatographic efficiency applied to expanded beds

Palsson, E; Axelsson, Anders LU and Larsson, Per-Olof LU (2001) In Journal of Chromatography A 912(2). p.235-248
Abstract
Various quantities such as plate height (HETP), number of plates (N), axial dispersion coefficient (D-ax) and Bodenstein number (Bo) are used to describe the efficiency of, and dispersion in chromatographic columns. Different quantities highlight different aspects of the performance. Due to the expansion of expanded-bed columns, the information contained in some of these quantities is not the same for expanded beds as for packed beds. In this article the mentioned quantities are described and discussed both theoretically and related to experimental data. It is concluded that they are often used in a confusing way. Quantities modified to be more informative when comparing beds of different expansions are developed (N-EB =N/expansion(2) and... (More)
Various quantities such as plate height (HETP), number of plates (N), axial dispersion coefficient (D-ax) and Bodenstein number (Bo) are used to describe the efficiency of, and dispersion in chromatographic columns. Different quantities highlight different aspects of the performance. Due to the expansion of expanded-bed columns, the information contained in some of these quantities is not the same for expanded beds as for packed beds. In this article the mentioned quantities are described and discussed both theoretically and related to experimental data. It is concluded that they are often used in a confusing way. Quantities modified to be more informative when comparing beds of different expansions are developed (N-EB =N/expansion(2) and HETPEB=HETP . bed expansion) and recommendations of which quantity to use in what situation are given. (C) 2001 Published by Elsevier Science B.V. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
expanded beds, efficiency, dispersion
in
Journal of Chromatography A
volume
912
issue
2
pages
235 - 248
publisher
Elsevier
external identifiers
  • wos:000167803200004
  • scopus:0035815513
ISSN
0021-9673
DOI
10.1016/S0021-9673(01)00586-6
language
English
LU publication?
yes
id
b4842450-3089-4001-bb3d-83b54ce16545 (old id 3918111)
date added to LUP
2013-07-05 08:29:34
date last changed
2018-01-07 09:44:35
@article{b4842450-3089-4001-bb3d-83b54ce16545,
  abstract     = {Various quantities such as plate height (HETP), number of plates (N), axial dispersion coefficient (D-ax) and Bodenstein number (Bo) are used to describe the efficiency of, and dispersion in chromatographic columns. Different quantities highlight different aspects of the performance. Due to the expansion of expanded-bed columns, the information contained in some of these quantities is not the same for expanded beds as for packed beds. In this article the mentioned quantities are described and discussed both theoretically and related to experimental data. It is concluded that they are often used in a confusing way. Quantities modified to be more informative when comparing beds of different expansions are developed (N-EB =N/expansion(2) and HETPEB=HETP . bed expansion) and recommendations of which quantity to use in what situation are given. (C) 2001 Published by Elsevier Science B.V.},
  author       = {Palsson, E and Axelsson, Anders and Larsson, Per-Olof},
  issn         = {0021-9673},
  keyword      = {expanded beds,efficiency,dispersion},
  language     = {eng},
  number       = {2},
  pages        = {235--248},
  publisher    = {Elsevier},
  series       = {Journal of Chromatography A},
  title        = {Theories of chromatographic efficiency applied to expanded beds},
  url          = {http://dx.doi.org/10.1016/S0021-9673(01)00586-6},
  volume       = {912},
  year         = {2001},
}