Experimental measurements and modeling of CO2 solubility in sunflower, castor and rapeseed oils

被引：10

作者：

Regueira, T. ^{[1
]}

Carvalho, P. J. ^{[2
]}

Oliveira, M. B. ^{[2
]}

Lugo, L. ^{[3
]}

Coutinho, J. A. P. ^{[2
]}

Fernandez, J. ^{[1
]}

机构：

[1] Univ Santiago de Compostela, Dept Fis Aplicada, Lab Propiedades Termofis, E-1782 Santiago De Compostela, Spain

[2] Univ Aveiro, Dept Quim, CICECO, P-3810193 Aveiro, Portugal

[3] Univ Vigo, Dpto Fis Aplicada, E-36310 Vigo, Spain

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2013年 / 82卷

关键词：

Carbon dioxide; Vegetable oil; Solubility; High pressure; SRK EoS; SUPERCRITICAL CARBON-DIOXIDE; PRESSURE PHASE-EQUILIBRIA; VEGETABLE-OILS; SOYBEAN OIL; VISCOSITY MODIFICATION; BASE-STOCKS; FATTY-ACIDS; LUBRICANTS; MIXTURES; OXIDATION;

D O I：

10.1016/j.supflu.2013.07.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work solubility measurements of CO2 in three vegetable oils, a high oleic sunflower oil (HOSO), a castor oil and a rapeseed oil, for mole fractions ranging from 0.32 to 0.93 in the temperature range 298-363 K and up to 75 MPa were performed. Moreover, the densities and viscosities of these oils are reported from 278.15 to 373.15 K at atmospheric pressure. These data were used to evaluate the predictive ability of the fragment based approach. Solubility data were modeled by means of the SRK EoS and predicted employing the Carvalho and Coutinho correlation. Global average deviations inferior to 6% in CO2 mole fraction composition were achieved with the SRK EoS and maximum percentage absolute average deviations of 13% in pressure were obtained using the Carvalho and Coutinho correlation. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：191 / 199

页数：9

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