Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Solubility of Carbon Dioxide in Water and Hexadecane: Experimental Measurement and Thermodynamic Modeling

Campos, C. E. P. S., Villardi, H. G. D. A., Pessoa, F. L. P., Uller, A. M. C.[Angela M. Cohen]
J. Chem. Eng. Data 2009, 54, 10, 2881-2886
ABSTRACT
Direct contact between oil, gases, and water often occurs in petroleum reservoirs and in many refining operations, where the phase behavior study is fundamental to design and optimization. Accurate experimental data and thermodynamic models are required for a satisfactory prediction of phase equilibrium. The objective of this work is to obtain experimental solubility data for the system of carbon dioxide + hexadecane since this organic compound has properties similar to the average properties of Brazilian heavy oil. The carbon dioxide + water system was used to validate the experimental apparatus and to obtain additional data to complete literature reports. The operational conditions used were a temperature range from (303.2 to 323.2) K and a low-pressure range from (51.7 to 535.4) kPa. Moreover, the results were correlated using a simple thermodynamic model to describe the behavior of both systems, demonstrating satisfactory bubble point calculation measurements.
Compounds
# Formula Name
1 H2O water
2 CO2 carbon dioxide
3 C16H34 hexadecane
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 2
  • 1
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Pressure Drop
  • 18
  • POMD
  • 2
  • 3
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Pressure Drop
  • 18