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Density Measurements of CO2-Expanded Liquids

Cunico, Larissa P. LU and Turner, Charlotta LU orcid (2017) In Journal of Chemical and Engineering Data 62(10). p.3525-3533
Abstract

Novel experimental data of density for mixtures containing CO2 + ethanol, CO2 + ethyl lactate, CO2 + glycerol + ethanol, and CO2 + glycerol + ethyl lactate at low/moderate temperatures (308 and 323 K), pressures between 5 and 30 MPa, and high amounts of the organic solvent (molar fraction x = 0.5-0.9) are presented. The chosen organic solvents (ethanol, ethyl lactate, and glycerol) are green and applicable in food industry and present different polarizabilities. The density of CO2 + ethanol increased with the increment in the molar fraction of CO2, and the opposite was observed for the mixtures of CO2 + ethyl lactate. By adding a small amount of glycerol to the... (More)

Novel experimental data of density for mixtures containing CO2 + ethanol, CO2 + ethyl lactate, CO2 + glycerol + ethanol, and CO2 + glycerol + ethyl lactate at low/moderate temperatures (308 and 323 K), pressures between 5 and 30 MPa, and high amounts of the organic solvent (molar fraction x = 0.5-0.9) are presented. The chosen organic solvents (ethanol, ethyl lactate, and glycerol) are green and applicable in food industry and present different polarizabilities. The density of CO2 + ethanol increased with the increment in the molar fraction of CO2, and the opposite was observed for the mixtures of CO2 + ethyl lactate. By adding a small amount of glycerol to the mixture of CO2 + ethanol and CO2 + ethyl lactate, it was possible to increase the density even a little further. The experimental data of density were well-correlated using the Peng-Robinson equation of state (PR-EOS) combined with Péneloux volume translation.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical and Engineering Data
volume
62
issue
10
pages
9 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000413131800054
  • scopus:85028997375
ISSN
0021-9568
DOI
10.1021/acs.jced.7b00540
language
English
LU publication?
yes
id
810ca662-e33c-4535-94a8-e6bbfa2aff2a
date added to LUP
2017-11-28 08:00:26
date last changed
2025-02-18 04:38:20
@article{810ca662-e33c-4535-94a8-e6bbfa2aff2a,
  abstract     = {{<p>Novel experimental data of density for mixtures containing CO<sub>2</sub> + ethanol, CO<sub>2</sub> + ethyl lactate, CO<sub>2</sub> + glycerol + ethanol, and CO<sub>2</sub> + glycerol + ethyl lactate at low/moderate temperatures (308 and 323 K), pressures between 5 and 30 MPa, and high amounts of the organic solvent (molar fraction x = 0.5-0.9) are presented. The chosen organic solvents (ethanol, ethyl lactate, and glycerol) are green and applicable in food industry and present different polarizabilities. The density of CO<sub>2</sub> + ethanol increased with the increment in the molar fraction of CO<sub>2</sub>, and the opposite was observed for the mixtures of CO<sub>2</sub> + ethyl lactate. By adding a small amount of glycerol to the mixture of CO<sub>2</sub> + ethanol and CO<sub>2</sub> + ethyl lactate, it was possible to increase the density even a little further. The experimental data of density were well-correlated using the Peng-Robinson equation of state (PR-EOS) combined with Péneloux volume translation.</p>}},
  author       = {{Cunico, Larissa P. and Turner, Charlotta}},
  issn         = {{0021-9568}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{10}},
  pages        = {{3525--3533}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Chemical and Engineering Data}},
  title        = {{Density Measurements of CO<sub>2</sub>-Expanded Liquids}},
  url          = {{http://dx.doi.org/10.1021/acs.jced.7b00540}},
  doi          = {{10.1021/acs.jced.7b00540}},
  volume       = {{62}},
  year         = {{2017}},
}