| 초록 |
The thermodynamic equilibrium properties for the two-component mixture of N,N-dimethylaniline and N,N-diethylaniline in supercritical CO2 were reported. Data determinations were performed through the static-type method from (313.2 to 393.2) K and p = (4.70 to 24.90) MPa. The obtained results indicated that the solubility of supercritical CO2 was found to increase monotonically with the augmented of system temperatures and mole fraction of (N,N-dimethylaniline and N,N-diethylaniline) in binary (solute + solvent) mixtures. The solubility curve of N,N-dimethylaniline and N,N-diethylaniline in the CO2 + N,N-dimethylaniline and CO2 + N,N-diethylaniline systems increases as the temperature increases at a constant pressure. The CO2 + N,N-dimethylaniline and CO2 + N,N-diethylaniline systems exhibit type-I phase behavior. Moreover, experimental results of both systems were adequately correlated with the Peng-Robinson equation of state. RMSD for the CO2 + N,N-dimethylaniline [kij=0.075, ηij=-0.070] and CO2 + N,N-diethylaniline [kij=0.078, ηij=-0.070] systems using two parameters determined at 353.2 K were 7.50 % and 7.08 %, respectively. |
