Phase Equilibrium of Binary Mixture for the (Carbon Dioxide + 1-Phenyl-2-Pyrrolidone) System at High Pressure

  • Lee, Ho (Department of Chemical and Biomolecular Engineering, Chonnam National University) ;
  • Jeong, Jong-Dae (Department of Chemical and Biomolecular Engineering, Chonnam National University) ;
  • Byun, Hun-Soo (Department of Chemical and Biomolecular Engineering, Chonnam National University)
  • Received : 2018.08.13
  • Accepted : 2018.09.07
  • Published : 2018.10.01


Experimental data of phase equilibria are reported for the binary mixture of 1-phenyl-2-pyrrolidone in supercritical carbon dioxide. Phase behavior data was measured in a synthetic method at a temperature ranging from 333.2 to 393.2 K and at pressures up to 97.14 MPa. The solubility of 1-phenyl-2-pyrrolidone in the carbon dioxide + 1-phenyl-2-pyrrolidone system increased as temperature increased at a constant pressure and it exhibited the type-I phase behavior. The experimental data for the binary mixture were correlated with the Peng-Robinson equation of state using mixing rule and the critical properties of 1-phenyl-2-pyrrolidone were predicted with the Joback and Lyderson method.


1-Phenyl-2-pyrrolidone;Carbon dioxide;Phase behavior;P-x isotherm;Phase equilibrium


Supported by : National Research Foundation of Korea (NRF)


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