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

abstract

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.

keywords

SUPERCRITICAL CARBON-DIOXIDE; PRESSURE PHASE-EQUILIBRIA; VEGETABLE-OILS; SOYBEAN OIL; VISCOSITY MODIFICATION; BASE-STOCKS; FATTY-ACIDS; LUBRICANTS; MIXTURES; OXIDATION

subject category

Chemistry; Engineering

authors

Regueira, T; Carvalho, PJ; Oliveira, MB; Lugo, L; Coutinho, JAP; Fernandez, J

our authors

acknowledgements

This work was carried out within the framework of the strategic and singular project

Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".