Measurement and Prediction of Infinite Dilution Activity Coefficients for C6 Hydrocarbons in Heavy Paraffinic Hydrocarbons

Yoshio Iwai, Masayuki Yamashita, Kouhachi Kohashi, Yasuhiko Arai

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The infinite dilution activity coefficients of C6 hydrocarbons (hexane, 3-methylpentane, cyclohexane and benzene) in heavy paraffinic hydrocarbons (hexadecane and eicosane) were measured in the region 20∼80°C by using a gas stripping method. The UNIFAC-FV model was applied to calculate the infinite dilution activity coefficients. Those of hexane and 3-methylpentane are predicted sufficiently by the model. Further, those of cyclic compounds such as cyclohexane or benzene can be correlated by adjusting the shape parameters in the combinatorial term.

Original languageEnglish
Pages (from-to)706-711
Number of pages6
Journalkagaku kogaku ronbunshu
Issue number5
Publication statusPublished - Jan 1 1988

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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