Multicomponent Distillation Modeling of An Essential Oil by the SRK and PSRK State Equations

Document Type: Research Article


Department of Mechanical Engineering, Payame Noor University (PNU), P.O. BOX 19395-3697 Tehran, I.R. IRAN


The equation of state Soave-Redlich-Kwong (SRK) and its modification (predictive SRK or PSRK) are applied to simulate multicomponet distillation, which separate main component of spearmint essential oil. The simulation model is based on bubble point method, and the Wang-Henke algorithm. Spearmint essential oil is considered in the study and the original experimental data were obtained from pilot plant. The models were validated by continuous distillation column with trays of one to five numbers. The work allows concluding on the advantages, disadvantages and expected accuracy of SRK and PSRK equations of state for multicomponent distillation data in the system as those studied..


Main Subjects

[1] Aflatuni A., Uusitalo J., Ek. S., Hohtola A., Variation in the Amount of Yield and in the Extract Composition between Conventionally Produced and Micropropagated Peppermint and Spearmint, J.Essen. Oil Res., 15:  66–70 (2005).

[2] Labarta J., Suárez, J.A.C., Gomis, A.M., "A Novel Hybrid Simulation-Optimization Approach for the Optimal Design of Multicomponent Distillation Columns", Universidad de Alicante, (2012).

[3] Loperena R.M., Scheffer M.V., A Simple, Reliable and Fast Algorithm for the Simulation of Multicomponent Distillation Columns, Chem. Eng. Res. Des., 91: 389-395 (2013).

[4] Komissarov Y.A., Sang D.Q., Multicomponent Distillation Calculations Using Computer Simulation Principles, Theo. Found. Chem. Eng., 48: 280-287 (2014).

[5] Holderbaun T., Gmehling J., “PRSK: A Group Contribution Equation of State Based on UNIFAC,” Fluid Phase Equil., 70: 251-265 (1991).

[7] Seader J.D., Henley J., "Separation Process Principle", John Wiley & Sons, Inc., New York, (2006).

[8] Wang J.C., Henke G.E., Tridiagonal Matrix for Distillation, Hydroc. Process., 45: 155-163 (1966).

[9] Chapra S.C., Canale R.P., "Numerical Methods for Engineers: with Programming and Software Applications", McGraw-Hill, New York, (1998).

[10] "Chemstations ChemCAD", User Guide. Houston, TX-USA: Chemstations Inc., (2000).

[11] Daubert T.E., Danner R.D., Sibul H.M., Stebbins C.C., "Physical and Thermodynamic Properties of Pure Chemical Data Compilations, Taylor and Francis", Washington DC, USA, (1996).

[12] Poling B.E., Prausnitz J.M., O'Connell, J.P., "The Properties of Gases and Liquids, McGraw-Hill", New York, (2001).

[13] Valderrama J.O., Silva A., Modified Soave-Redlich-Kwong Equations of State Applied to Mixtures Containing Supercritical Carbon Dioxide. Korean, J. Chem. Eng., 20: 709-715 (2003).

[14] Nasri Z., Binous H., Applications of the Soave-Redlich-Kwong Equation of State Using Mathematica, J. Chem. Eng. Jap., 40: 534-538 (2007).