Solubility of Perfluoropentanoic Acid in Supercritical Carbon Dioxide: Measurements and Modeling

Adrien Dartiguelongue (1, 2) , Antoine Leybros (3) , Agnès Grandjean (4)

1 UCP - Unité de Chimie et Procédés
2 IRCP - Institut de Recherche de Chimie Paris
3 Supercritical and Decontamination Processes Laboratory
4 Laboratoire des Procédés Supercritiques et de Décontamination

The solubility of perfluoropentanoic acid in supercritical carbon dioxide was investigated for a broad range of pressures (10 to 26 MPa) and at three temperatures: 314, 324, and 334 K. A dynamic gravimetric device was used for the high pressure measurements. The solubility ranges from (24.7 +/- 0.3) kg.m(-3) at 334 K to 10.2 MPa to (103.9 +/- 7.7) kg.m(-3) at 314 K and 20.1 MPa. Density-based models, notably the dimensionless version of the Adachi-Lu model, fit the experimental data accurately. The latter model was employed to calculate the solubility over a wide range of CO2 densities.

Domaines: Génie des procédés; Mécanique des fluides [physics.class-ph]

Adrien Dartiguelongue, Antoine Leybros, Agnès Grandjean. Solubility of Perfluoropentanoic Acid in Supercritical Carbon Dioxide: Measurements and Modeling. Journal of Chemical and Engineering Data, 2016, 61 (11), pp.3902-3907. ⟨10.1021/acs.jced.6b00649⟩. ⟨hal-01463189⟩