modeling vapor-liquid equilibria by simplified SAFT equation of state

Document Type : Review

Authors

1 M.S. Student, Department of chemical engineering, Faculty of oil, Gas and petrochemical engineering, Persian Gulf University, Bushehr, Iran

2 Assistant professor of chemical engineering, Department of chemical engineering, Faculty of oil, Gas and petrochemical engineering, Persian Gulf University, Bushehr, Iran

Abstract

In this work, simplified SAFT equation of state similar to simplified PC-SAFT equation of sate was used for modeling vapor-liquid equilibria of systems containing associating-associating , associating-nonassociating and non-associating-nonassociating compounds. Simplified SAFT equation of state was used to model binary systems methane-propane, methanol-pentane and water-methanol. pure component radial distribution function was used for mixtures in this simplified SAFT equation of state. pure component parameters for both SAFT and simplified SAFT equation of sate are identical. 3B and 2B association schemes were used for water and methanol, respectively. for the above binary systems, by adjusting one binary interaction parameter, calculated results from simplified SAFT equation of state were in good agreement with experimental results.

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