Density and viscosity of orange peel oil saturated with pressurized CO2

In this work, we measure the density and viscosity of CO₂ saturated orange peel oil liquid mixtures under moderated pressure for the purpose of supercritical process engineering design. A high-pressure falling weight viscometer is used to measure the viscosity of saturated liquid mixtures of orange oil + CO₂ at different temperatures (293 K to 333 K) and saturated pressures (2 MPa to 10.3 MPa). An important variation of viscosity (0.35.10⁻³ Pa.s to 1.10 10⁻³ Pa.s) is reported in the range of operating conditions. Results show the operating temperature influences the viscosity of both the pure oil and the CO₂-saturated oily substrates. The new viscosity data correlates with a simple Arrhenius modified type model.