Measurement and Correlation of Vapor-Liquid Equilibria for Water + 2-Propanol, Water + 2-Butanol, and Water + 2-Pentanol Systems at High Temperatures and Pressures

The vapor−liquid equilibria for water + 2-propanol, water + 2-butanol, and water + 2-pentanol systems were measured at (523 to 573) K and (3.30 to 11.48) MPa by a flow method. The vapor−liquid equilibrium data for the water + 2-propanol system at (548 and 573) K were compared with the literature data to confirm the validity of the experimental apparatus and procedure. The phase behavior was elucidated by changing the temperatures and the carbon number of the secondary alcohols. The experimental data obtained in this work were correlated by a modified Soave−Redlich−Kwong (MSRK) equation of state. An exponent-type mixing rule was applied to the energy parameters in the equation of sate. The correlated results are in good agreement with the experimental data.

[1]  Y. Shimoyama,et al.  Measurement and Correlation of Phase Equilibria for Water + Decane + 2-Propanol, Water + Hexane + 2-Propanol, and Water + Decane + 2-Butanol Ternary Systems at 573 and 593 K and 15.0 and 20.0 MPa , 2004 .

[2]  Y. Shimoyama,et al.  Measurement and prediction of liquid-liquid equilibria for water + hexane + hexadecane, water + toluene + decane, and water + toluene + ethylbenzene ternary systems at high temperatures and pressures , 2002 .

[3]  Y. Oshima,et al.  Catalytic Hydration of Propylene with MoO3/Al2O3 in Supercritical Water , 2002 .

[4]  H. Daimon,et al.  Development of Marine Waste Recycling Technologies Using Sub- and Supercritical Water , 2001 .

[5]  Masaru Watanabe,et al.  Partial oxidation of n-hexadecane and polyethylene in supercritical water , 2001 .

[6]  Y. Arai,et al.  Measurement and correlation of liquid-liquid equilibria for water + aromatic hydrocarbon binary systems at high temperatures and pressures , 2001 .

[7]  Y. Arai,et al.  Measurement and Correlation of Phase Equilibria for Water + Hydrocarbon Systems near the Critical Temperature and Pressure of Water , 2000 .

[8]  H. Enomoto,et al.  Characteristics of polyethylene cracking in supercritical water compared to thermal cracking , 1999 .

[9]  Zhen Fang,et al.  Phase behavior and reaction of polyethylene terephthalate–water systems at pressures up to 173 MPa and temperatures up to 490°C , 1999 .

[10]  K. Takeuchi,et al.  An exponent-type mixing rule for energy parameters , 1994 .

[11]  A. Kidnay,et al.  Compilation of parameters for a polar fluid Soave-Redlich-Kwong equation of state , 1986 .

[12]  G. Soave.  Equilibrium constants from a modified Redlich-Kwong equation of state , 1972 .

[13]  D. Marquardt.  An Algorithm for Least-Squares Estimation of Nonlinear Parameters , 1963 .

[14]  F. Barr-David,et al.  Vapor-Liquid Equilibrium at High Pressures. The Systems Ethanol-Water and 2-Propanol-Water. , 1959 .