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In situ Raman spectroscopy for the evaluation of solubility in supercritical carbon dioxide mixtures

Rodriguez Meizoso, Irene LU ; Lazor, P. and Turner, Charlotta LU (2012) In Journal of Supercritical Fluids 65. p.87-92
Abstract
Solubility phenomena in supercritical carbon dioxide (SC-CO2) mixtures have been studied in situ using Raman spectroscopy. A Raman spectroscopy instrumentation has been linked to a high-pressure optical cell. The set-up was tested in the system SC-CO2/alkyl ketene dimer (AKD) under pressures up to 300 bars and temperatures up to 80 degrees C. As a proof of concept, the possibility to study solubility of AKD in SC-CO2 as well as solubility of SC-CO2 in AKD by studying the Raman signal of SC-CO2 has been presented. Statistically tested results show how these competitive phenomena depend on the density region of the SC-CO2. Raman spectra of AKD in the system AKD/SC-CO2 have also been acquired, demonstrating the prospect of quantitative... (More)
Solubility phenomena in supercritical carbon dioxide (SC-CO2) mixtures have been studied in situ using Raman spectroscopy. A Raman spectroscopy instrumentation has been linked to a high-pressure optical cell. The set-up was tested in the system SC-CO2/alkyl ketene dimer (AKD) under pressures up to 300 bars and temperatures up to 80 degrees C. As a proof of concept, the possibility to study solubility of AKD in SC-CO2 as well as solubility of SC-CO2 in AKD by studying the Raman signal of SC-CO2 has been presented. Statistically tested results show how these competitive phenomena depend on the density region of the SC-CO2. Raman spectra of AKD in the system AKD/SC-CO2 have also been acquired, demonstrating the prospect of quantitative analysis for solubility studies in SC-CO2. Furthermore, this versatile set-up provides information about thermal expansion of the vessel and evidences the need for corrected equations in this commonly used region of pressures and temperatures. (c) 2012 Elsevier B.V. All rights reserved. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
keywords
Raman spectroscopy, Supercritical fluids, Green technology, Solubility, phenomena, Alkyl ketene dimer
in
Journal of Supercritical Fluids
volume
65
pages
87 - 92
publisher
Elsevier
external identifiers
  • wos:000304020600012
  • scopus:84859887404
ISSN
0896-8446
DOI
10.1016/j.supflu.2012.03.002
language
English
LU publication?
yes
id
bebbecc0-6b8b-4641-870e-53cebd199296 (old id 2813025)
date added to LUP
2012-06-25 09:14:08
date last changed
2017-01-01 03:54:01
@article{bebbecc0-6b8b-4641-870e-53cebd199296,
  abstract     = {Solubility phenomena in supercritical carbon dioxide (SC-CO2) mixtures have been studied in situ using Raman spectroscopy. A Raman spectroscopy instrumentation has been linked to a high-pressure optical cell. The set-up was tested in the system SC-CO2/alkyl ketene dimer (AKD) under pressures up to 300 bars and temperatures up to 80 degrees C. As a proof of concept, the possibility to study solubility of AKD in SC-CO2 as well as solubility of SC-CO2 in AKD by studying the Raman signal of SC-CO2 has been presented. Statistically tested results show how these competitive phenomena depend on the density region of the SC-CO2. Raman spectra of AKD in the system AKD/SC-CO2 have also been acquired, demonstrating the prospect of quantitative analysis for solubility studies in SC-CO2. Furthermore, this versatile set-up provides information about thermal expansion of the vessel and evidences the need for corrected equations in this commonly used region of pressures and temperatures. (c) 2012 Elsevier B.V. All rights reserved.},
  author       = {Rodriguez Meizoso, Irene and Lazor, P. and Turner, Charlotta},
  issn         = {0896-8446},
  keyword      = {Raman spectroscopy,Supercritical fluids,Green technology,Solubility,phenomena,Alkyl ketene dimer},
  language     = {eng},
  pages        = {87--92},
  publisher    = {Elsevier},
  series       = {Journal of Supercritical Fluids},
  title        = {In situ Raman spectroscopy for the evaluation of solubility in supercritical carbon dioxide mixtures},
  url          = {http://dx.doi.org/10.1016/j.supflu.2012.03.002},
  volume       = {65},
  year         = {2012},
}