Xiong, Sandler, and Burnett (Chemical Engineering, University of Delaware) recently reported a new COSMO-SAC-2013 model, with parameters also available for the COSMO-RS implementation in ADF. With a single set of universal parameters, COSMO-SAC-2013 provides higher accuracy than previous COSMO-SAC models for predicting thermodynamic properties of mixtures, while maintaining the same accuracy for thermodynamic properties of pure compounds.
While the new parameters have been fitted against logP data, they also significantly improve vapor-liquid equilibrium (VLE) properties, such as vapor pressures of mixtures.
Do you want try for yourself? Request a free 30-day evaluation for the whole Amsterdam Modeling Suite.
Newsletter: tips & tricks, highlights, events
Would you like to keep up to date with the latest developments in the Amsterdam Modeling Suite and the SCM team, learn more about new applications and functionality?
Subscribe to our newsletter!
R. Xiong, S. I. Sandler, and R. I. Burnett, An Improvement to COSMO-SAC for Predicting Thermodynamic Properties, Ind. Eng. Chem. Res., 53, 8265–8278 (2014).Key conceptsCOSMO-RS logP oil & gas pharma VLE