Densities for carbon dioxide/cyclohexane, methylcyclohexane, and ethylbenzene systems

Publication date: January 2020Source: The Journal of Chemical Thermodynamics, Volume 142Author(s): Hiroaki Matsukawa, Ken Kuwabara, Yuichiro Shimada, Tomoya Tsuji, Katsuto OtakeAbstractThe density of homogeneous phase fluid mixtures for various carbon dioxide (CO2)/organic solvent systems was measured in homogeneous phase. Solvents included cyclohexane (C6H12), methylcyclohexane (C6H11CH3), and ethylbenzene (C6H5C2H5). Density measurements were performed using a high-pressure vibration type density meter equipped with a circulation pump and variable volume viewing cell which guarantee the homogeneity of mixtures. The density was measured at temperatures ranging from 313 K to 353 K and pressures up to 20 MPa, and the CO2 composition varied from (0 to 80) mol%. The obtained experimental data were correlated according to a density equation. The resulting correlation agrees well with the experimental data.Graphical abstract

Source: The Journal of Chemical Thermodynamics - December 13, 2019 Category: Chemistry Source Type: research