Effect of pressurized carbon dioxide on mutual miscibility temperatures for methanol + hydrocarbon binary liquid mixtures

Tohru Saito, Yoshio Iwai, Yasuhiko Arai, Futoshi Nakadai, Daisuke Taniguchi, Kenji Ochi, Takeshi Furuya

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

An apparatus has been developed for the measurement of mutual miscibility temperatures of binary liquid mixtures coexisting with a high pressure gas to examine to what extent the phase behavior changes. Methanol + hydrocarbon (cyclohexane, hexane, octane, and decane) binary mixtures were selected as typical polar and non-polar mixtures. And their mutual miscibility temperatures were measured at temperatures from 275.4 to 363.9 K and pressures up to 2.2 MPa with pressurized carbon dioxide (CO2. The experimental results were correlated with the NRTL equation by adopting a pseudo-binary mixture treatment. The NRTL interaction parameters between methanol and hydrocarbons were assumed to vary due to the presence of CO2. A good agreement between the experimental and the correlated mutual miscibility temperatures is obtained.

Original languageEnglish
Pages (from-to)907-914
Number of pages8
JournalJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume39
Issue number9
DOIs
Publication statusPublished - Sep 20 2006

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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