AZD – Azeotropic and Zeotropic Data in Non-Electrolyte Mixtures

The AZD data bank contains experimental azeotropic and zeotropic information for a very large number of binary and multicomponent mixtures. This information is of foremost importance for the design of thermal separation processes including the liquid and vapor phase. Besides the fact that knowledge about azeotropic behavior and the composition of azeotropic mixtures as function of temperature and pressure has to be known, these data also present a very vital test for the thermodynamic models and parameters used for process simulation. If azeotropic behavior is not reproduced by the thermo-package or azeotropic points are falsely predicted, simulation results will in most cases be totally unrealistic. Often a less accurate description of the VLE behavior is accepted in order to reproduce the important azeotropic behavior (ACT) and the behavior at infinite dilution with high precision.

Azeotropic points with entrainers are often used to break an azeotrope between the key components or to simplify their separation (azeotropic distillation). DDB-AZD is therefore of great importance in process synthesis for the selection of potential entrainers and should be licensed together with the DDBSP-Synthesis package (in case of extractive distillation, the most important information is found in DDB-ACT).


Data Tables, Monographies

2004    Azeotropic Data. Part 1 - 3    Gmehling J., Menke J., Krafczyk J., Fischer K.    Monograph, 9.6, 6, 1-1992 (2004)
1994    Azeotropic Data. Part 1 + 2    Gmehling J., Menke J., Krafczyk J., Fischer K.    Monograph, 9.6, 6, 1-1729 (1994)

Selected Scientific Papers

2001    Comments on "Optimization of a Wastewater System Containing the Ternary Homogeneous Azeotropic System Ethyl Acetate-Ethanol-Water    Gmehling J., Steinigeweg S., Poepken T.    Journal    Ind.Eng.Chem.Res., 40, 1, 492 493 (2001)
2001    Classification of Homogeneous Binary Azeotropes    Shulgin I., Fischer K., Noll O., Gmehling J.    Journal    Ind.Eng.Chem.Res., 40, 12, 2742 2747 (2001)
1996    Azeotropic Data for Binary and Ternary Systems at Moderate Pressures    Gmehling J., Boelts R.    Journal    J.Chem.Eng.Data, 41, 2, 202 209 (1996)
1995    A data bank for azeotropic data - status and applications    Gmehling J., Menke J., Krafczyk J., Fischer K.    Journal    Fluid Phase Equilib., 103, 6, 51 76 (1995)

Selected Scientific Papers (Experimental Data)

2008    Vapour-liquid equilibria, azeotropic data, excess enthalpies, activity coefficients at infinite dilution and solid-liquid equilibria for binary alcohol-ketone systems    Abbas R., Gmehling J.    Journal    Fluid Phase Equilib., 267, 2, 119 126 (2008)
2006    Azeotropic and Heats of Mixing Data for Several Binary Organic Systems containing 1-Methoxy-2-propanol and 2-Butoxy Ethanol    Negadi L., Gmehling J.    Journal    J.Chem.Eng.Data, 51, 3, 1122 1125 (2006)
2005    Activity Coefficient at Infinite Dilution, Azeotropic Data, Excess Enthalpies and Solid-Liquid-Equilibria for Binary Systems of Alkanes and Aromatics with Esters    Collinet E., Gmehling J.    Journal    Fluid Phase Equilib., 230, 1-2, 131-142 (2005)
2004    Vapor-Liquid-Liquid Equilibria, Azeotropic, and Excess Enthalpy Data for the Binary System n-Undecane + Propionamide and Pure-Component Vapor Pressure and Density Data for Propionamide    Horstmann S., Fischer K., Gmehling J.    Journal    J.Chem.Eng.Data, 49, 6, 1494 1498 (2004)
2003    Azeotropic and solid - liquid equilibria data for several binary organic systems containing one acetal compound    Teodorescu M., Wilken M., Wittig R., Gmehling J.    Journal    Fluid Phase Equilib., 204, 6, 267 280 (2003)
2001    Azeotropic and heats of mixing data for various binary systems with diethoxymethane    Constantinescu D., Wittig R., Gmehling J.    Journal    Fluid Phase Equilib., 191, 10, 99 109 (2001)
1998    Binary Azeotropic Data at Different Pressures for Systems with 2-Etoxyethanol, 2-Methyl-1-butanol, and Dimethyl Carbonate. 2.    Li J., Gmehling J.    Journal    J.Chem.Eng.Data, 43, 2, 230 232 (1998)