Solubilities of solids in supercritical fluids - II. Polycyclic aromatic hydrocarbons (PAHs) + CO2/cosolvent

G. Anitescu, L. L. Tavlarides

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

A new quasistatic technique has been presented in a previous paper [G. Anitescu, L.L. Tavlarides, J. Supercritical Fluids (1997)] [1] and employed to obtain solubilities of polycyclic aromatic hydrocarbons (PAHs) in the pure supercritical fluids (SCFs) carbon dioxide and ethane. This paper extends the method to determine the solubilities of PAHs in the solvent/cosolvent SCFs. The equipment and procedure were modified to include a precise cosolvent delivery system. Extensive solubility data of anthracene, phenanthrene, pyrene, and perylene in the SCFs CO2/C2H6, CO2/C3H8, CO2/n-C4H10 and CO2/MeOH are presented at 313 and 333 K in a pressure range of 100-350 bar for mole fractions of the cosolvent of 0.05 and 0.10. Solubilities of phenanthrene in CO2/C2H6 at 313 K were performed for the entire range of SCF compositions. In terms of the absolute magnitude of solubility, the CO2/cosolvent power increases for the studied systems related to pure carbon dioxide in the order CO2/ethane (16-30%) < CO2/propane (24-56%) < CO2/n-butane (35-79%) < CO2/methanol (66-84%).

Original languageEnglish (US)
Pages (from-to)37-51
Number of pages15
JournalJournal of Supercritical Fluids
Volume11
Issue number1-2
DOIs
StatePublished - Oct 31 1997

Keywords

  • CH
  • CH
  • CO
  • Cosolvent
  • Equilibrium solubility
  • Methanol
  • PAH
  • Quasistatic method
  • Supercritical fluid
  • n-CH

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Solubilities of solids in supercritical fluids - II. Polycyclic aromatic hydrocarbons (PAHs) + CO<sub>2</sub>/cosolvent'. Together they form a unique fingerprint.

  • Cite this