Measurement and correlation of vapor-liquid equilibria for the ethanol + n-heptane system near the critical region

Jungha Seo, Sanghak Lee, Hwayong Kim

Research output: Contribution to journalArticle

19 Scopus citations


Isothermal VLE data for ethanol + n-heptane have been obtained at near-critical temperatures. The critical pressures determined from the critical opalescence of the mixtures were compared with published work of ethanol + n-butane, ethanol + n-pentane, and ethanol + n-hexane systems. A circulating type apparatus with a view cell has been used. These mixtures are highly nonideal because of the association of ethanol, and the data could be correlated with sufficient accuracy by using the Peng-Robinson-Stryjek-Vera (PRSV) equation of state with Wong-Sandler mixing rules.

Original languageEnglish (US)
Pages (from-to)974-977
Number of pages4
JournalJournal of Chemical and Engineering Data
Issue number4
StatePublished - Jul 1 2002
Externally publishedYes


ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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