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亚临界和超临界状态下甲苯-多环芳香烃体系的气液相平衡

Cheol-Joong KIMa; Dong-Bok WONb; Kyu-Jin HANb; So-Jin PARKb   

  1. a R&D center, SK corporation, Taejon 305-370, Korea
    b Deptartment of Chemical Engineering, Chungnam National University, Taejon 305-764, Korea
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2002-12-28 发布日期:2002-12-28
  • 通讯作者: Cheol-Joong KIM

Vapor-Liquid Equilibrium of Toluene-Polycyclic Aromatic Hydrocarbon System in Sub-and
Supercritical State

Cheol-Joong KIMa; Dong-Bok WONb; Kyu-Jin HANb; So-Jin PARKb   

  1. a R&D center, SK corporation, Taejon 305-370, Korea
    b Deptartment of Chemical Engineering, Chungnam National University, Taejon 305-764, Korea
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-12-28 Published:2002-12-28
  • Contact: Cheol-Joong KIM

摘要: The phase behaviors of toluene/polycyclic aromatic hydrocarbon mixture systems were
investigated with a continuous-flow typeapparatus at 573.2, 598.2, 623.2 and 648.2 K, while
the pressure changed from I to 5MPa. The pseudo-binary phase behaviors were predictedwith
the Peng-Robinson equation of state with interaction parameters between toluene and pseudo
-components considered. The phase diagramsof the system have been classified following the
category of phase boundary diagram models. The extraction selectivity and efficiency of
tolue-ne as a solvent was discussed by comparing with that of hexane. The prediction model
for selectivity was also suggest, ed.

关键词: vapor-liquid equilibrium;polycyclic aromatic hydrocarbon mixtures;supercritical fluid extraction;selectivity

Abstract: The phase behaviors of toluene/polycyclic aromatic hydrocarbon mixture systems were
investigated with a continuous-flow typeapparatus at 573.2, 598.2, 623.2 and 648.2 K, while
the pressure changed from I to 5MPa. The pseudo-binary phase behaviors were predictedwith
the Peng-Robinson equation of state with interaction parameters between toluene and pseudo
-components considered. The phase diagramsof the system have been classified following the
category of phase boundary diagram models. The extraction selectivity and efficiency of
tolue-ne as a solvent was discussed by comparing with that of hexane. The prediction model
for selectivity was also suggest, ed.

Key words: vapor-liquid equilibrium, polycyclic aromatic hydrocarbon mixtures, supercritical fluid extraction, selectivity