Solubility and density measurements of palmitic acid in supercritical carbon dioxide + alcohol mixtures

Lars Brandt; Octavio Elizalde-Solis; Luis A. Galicia-Luna; Jürgen Gmehling

doi:10.1016/j.fluid.2009.11.007

Solubility and density measurements of palmitic acid in supercritical carbon dioxide + alcohol mixtures

Lars Brandt, Octavio Elizalde-Solis, Luis A. Galicia-Luna, Jürgen Gmehling

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Solubility data of palmitic acid (hexadecanoic acid) in supercritical carbon dioxide were measured in the pressure range from 10 to 25 MPa at temperatures of 313 and 318 K. Densities for this binary mixture in the homogeneous phase and at saturation conditions were measured in the same range of temperature. The influence of 3 and 6 mol% ethanol and 2-propanol as co-solvent on the solubility and density data for the CO₂ + palmitic acid mixture was also determined at 313 K. Measurements were carried out in a static-synthetic sapphire cell coupled to a vibrating-tube densitometer. The self-consistency of the data was tested according to the density-based models proposed by Mendez-Santiago and Teja.

Original language	English
Pages (from-to)	72-79
Number of pages	8
Journal	Fluid Phase Equilibria
Volume	289
Issue number	1
DOIs	https://doi.org/10.1016/j.fluid.2009.11.007
State	Published - 25 Feb 2010
Externally published	Yes

Keywords

Co-solvent
Densitometer
Palmitic acid
Solubility

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10.1016/j.fluid.2009.11.007

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title = "Solubility and density measurements of palmitic acid in supercritical carbon dioxide + alcohol mixtures",

abstract = "Solubility data of palmitic acid (hexadecanoic acid) in supercritical carbon dioxide were measured in the pressure range from 10 to 25 MPa at temperatures of 313 and 318 K. Densities for this binary mixture in the homogeneous phase and at saturation conditions were measured in the same range of temperature. The influence of 3 and 6 mol% ethanol and 2-propanol as co-solvent on the solubility and density data for the CO2 + palmitic acid mixture was also determined at 313 K. Measurements were carried out in a static-synthetic sapphire cell coupled to a vibrating-tube densitometer. The self-consistency of the data was tested according to the density-based models proposed by Mendez-Santiago and Teja.",

keywords = "Co-solvent, Densitometer, Palmitic acid, Solubility",

author = "Lars Brandt and Octavio Elizalde-Solis and Galicia-Luna, {Luis A.} and J{\"u}rgen Gmehling",

note = "Funding Information: L. Brandt thanks Stipendien-Fond des Verbandes der Chemischen Industrie e.V. (FCI) for the PhD fellowship. O. Elizalde-Solis specially acknowledges Director of E.S.I.Q.I.E. Prof. J.S. Meza-Espinoza for the Ph.D. fellowship. Funding Information: The authors wish to express their gratitude to Consejo Nacional de Ciencia y Tecnologia and Instituto Polit{\'e}cnico Nacional (MEXICO) for the financial support of this research. ",

year = "2010",

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doi = "10.1016/j.fluid.2009.11.007",

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AU - Brandt, Lars

AU - Elizalde-Solis, Octavio

AU - Galicia-Luna, Luis A.

AU - Gmehling, Jürgen

N1 - Funding Information: L. Brandt thanks Stipendien-Fond des Verbandes der Chemischen Industrie e.V. (FCI) for the PhD fellowship. O. Elizalde-Solis specially acknowledges Director of E.S.I.Q.I.E. Prof. J.S. Meza-Espinoza for the Ph.D. fellowship. Funding Information: The authors wish to express their gratitude to Consejo Nacional de Ciencia y Tecnologia and Instituto Politécnico Nacional (MEXICO) for the financial support of this research.

PY - 2010/2/25

Y1 - 2010/2/25

N2 - Solubility data of palmitic acid (hexadecanoic acid) in supercritical carbon dioxide were measured in the pressure range from 10 to 25 MPa at temperatures of 313 and 318 K. Densities for this binary mixture in the homogeneous phase and at saturation conditions were measured in the same range of temperature. The influence of 3 and 6 mol% ethanol and 2-propanol as co-solvent on the solubility and density data for the CO2 + palmitic acid mixture was also determined at 313 K. Measurements were carried out in a static-synthetic sapphire cell coupled to a vibrating-tube densitometer. The self-consistency of the data was tested according to the density-based models proposed by Mendez-Santiago and Teja.

AB - Solubility data of palmitic acid (hexadecanoic acid) in supercritical carbon dioxide were measured in the pressure range from 10 to 25 MPa at temperatures of 313 and 318 K. Densities for this binary mixture in the homogeneous phase and at saturation conditions were measured in the same range of temperature. The influence of 3 and 6 mol% ethanol and 2-propanol as co-solvent on the solubility and density data for the CO2 + palmitic acid mixture was also determined at 313 K. Measurements were carried out in a static-synthetic sapphire cell coupled to a vibrating-tube densitometer. The self-consistency of the data was tested according to the density-based models proposed by Mendez-Santiago and Teja.

KW - Co-solvent

KW - Densitometer

KW - Palmitic acid

KW - Solubility

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DO - 10.1016/j.fluid.2009.11.007

M3 - Artículo

SN - 0378-3812

VL - 289

SP - 72

EP - 79

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

IS - 1

ER -

Solubility and density measurements of palmitic acid in supercritical carbon dioxide + alcohol mixtures

Abstract

Keywords

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