Measurement and Correlation of Vapor-Liquid Equilibria for Water + Secondary Alcohol Systems at High Temperatures and Pressures

抄録

The vapor-liquid equilibria for water + 2-propanol and water + 2-butanol binary systems were measured at 548 and 573 K and 6.38-11.13 MPa with a flow type apparatus. The vapor-liquid equilibrium data for the water + 2-propanol system were compared with the literature data. The results in this work were good agreement with the literature data. A modified SRK equation of state was used to correlate the vapor-liquid equilibrium data for the present water + secondary alcohol systems at high temperatures and pressures. An exponent-type mixing rule was applied for the energy parameter of the equation of state. The interaction parameters were determined from the vapor-liquid equilibrium data measured in this work. The correlated results show good agreement with the experimental results.