Solubilities of solid polynuclear aromatics (PNA's) in supercritical ethylene and ethane from statistical associating fluid theory (SAFT): toward separating PNA's by size and structure Academic Article uri icon


  • Statistical associating fluid theory (SAFT) is used to calculate solubilities of solid polynuclear aromatic hydrocarbons (PNA's), such as naphthalene, phenanthrene, pyrene, and anthracene, m supercritical ethylene and supercritical ethane. Good agreement with experimental data is obtained at temperatures from 12 to 75 °C and at pressures up to 550 bar. Only one binary adjustable parameter is needed, which has a simple linear temperature dependence. The SAFT model is applied to predicting selectivities and capacities of supercritical ethane and ethylene for separating PNA's by size and structure. © 1992, American Chemical Society. All rights reserved.

author list (cited authors)

  • Economou, I. G., Gregg, C. J., & Radosz, M.

citation count

  • 20

publication date

  • November 1992