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

Measuring and Modeling the Density of Some Typical Binary Mixtures in the Conditions of 280–423.15 K and 0.1–9 MPa

“…Furthermore, Figures b–b are the comparisons with literature at high pressures, and the average percentage deviations are 0.358%, 0.214%, 0.054%, 0.085%, and 0.153%, respectively. The measurement deviation for methylcyclohexane is mainly from Matsukawa et al, and in comparison with Wagner, the average deviation is 0.081%. This demonstrates a good correlation between our densities and other works.…”

“…In the straight-chain alkanes of aviation fuels, n -dodecane, n -tetradecane, and n -hexadecane are usually chosen as model compounds, while shorter alkyl cycloalkanes are considered to represent the cycloalkane category − among which methylcyclohexane and ethylcyclohexane are often adopted. For the priorities of pure methylcyclohexane or ethylcyclohexane, , the density data are abundant and have been reported by several research groups, − but various physical properties, such as density, thermal expansion, and compressibility of their binary mixtures with straight-chain alkanes, have been seldom focused on. Prak et al studied the densities, viscosities, speeds of sound, bulk moduli, surface tensions, and flash points of methylcyclohexane or ethylcyclohexane with n -dodecane or n -hexadecane at T = 293.15 to 333.15 K and P = 0.1 MPa, and through a comparison with these properties of petroleum-based fuels, it was found that ethylcyclohexane and n -hexadecane were the best matched for jet fuel.…”

“…Blank square, Laesecke et al; red circle, Zéberg-Mikkelsen et al; dark blue regular triangle, Baragi et al; green inverted triangle, Prak et al; purple diamond, Yang et al; yellow left-pointing triangle, Jiang et al; and light blue right-pointing triangle, Zhang et al (b) Comparison of experimental methylcyclohexane density data ( ρ exp ) at various pressures and T = 313 K with the literature ( ρ lit ). Blank square, Matsukawa et al; red circle, Wagner et al…”