Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

In this study, the vapor-liquid equilibrium data of CO2 + iso-butanol, CO2 + 2-butanol and CO2 + tert-butanol systems were measured with the improved static-type phase equilibrium apparatus at temperatures of 331.93, 341.59 and 351.27 K, and pressure from 50 to 120 bar. In order to ensure the accuracy and reliability of these measurements, the experimental data were compared with literatures and found these were in quite good agreement. It also showed that the mutual solubilities of CO2 + isomeric butanol systems were decreased in the order as CO2 + tert-butanol, CO2 + 2-butanol, CO2 + iso-butanol and CO2 + iso-butanol. The temperature and pressure effects on mutual solubilities between CO2 and isomeric butanols were also demonstrated and discussed.