Physical properties ASPEN data regression

The above model parameters in Eq. (2.21) are unsymmetrical. The Aspen Physical Property System has a large number of built-in binary parameters for the Wilson model. The binary parameters have been regressed using the vapor-liquid equilibrium data from the Dortmund... 

In this chapter, the background of phase equilibrium was reviewed. The useful binary and ternary tools in Aspen were also illustrated with examples. Data regression capability in Aspen for obtaining thermodynamic model parameters from experimental data was also demonstrated. For the cases where there is no experimental data, how to use UNIFAC to estimate physical properties was also given in this chapter. 

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