Key words: palladium hexafluoroacetylacetonate, carbon dioxide, solubility, Peng— Robinson equation of state, Chrastil equation
The paper considers two approaches for modeling the solubility of palladium hexafluoroacetylacetonate in carbon dioxide under sub- and supercritical conditions based on previously collected experimental data. The first approach uses the Peng—Robinson equation of state, while the second uses the Chrastil equation as an alternative. During the study, optimal parameters for the model equations were determined. Both modeling approaches allowed for a satisfactory approximation of the solubility isotherms within the temperature range of 313—353 K and a molar fraction of the complex of up to 0.8%. Standard deviations for the Peng—Robinson and Chrastil models were 2.6 and 2.0 g/l, respectively.
doi:10.34984/SCFTP.2024.19.4.004