Investigation of correlation and prediction of excess molar volume using different equations of states

الملخص EN

Prediction and correlation of accurate value of excess molar volume VE are of great interest for adequate design of industrial process and for theoretical purpose.Soave RedlichKwong (SRK-EOS), Peng-Robinson (PR-EOS), and Peng Robinson-Stryjek-Vera (PRSV-EOS) are selected.

Five Mixing Rules are applied on different groups systems of different polarity which are : conventional Mixing Rules, Quadratic Mixing Rules, Adachi and SugieMixing Rules,a modified Adachi and Sugie mixing rules.

Another tried method to extend the applicability of CEOS by usingthe best applicable EOS from the three selected EOS with the PRSV-EOS with a new correlation method thatuses Excess Gibbs free energy (GE) and Huron Vidal Method.Also by means of using Huron-Vidal Mixing Rules (HV) .the Huron-Vidal Method is developed by using an adjustable parameter hij.

The developed applied method gave very acceptable results for binary mixtures.

To find the applicability of the gated constant for different group families ; same constants of the binaries which confirm the ternary system are quite well applicable to calculate VE data for ternary system with very reasonable accuracy.