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Flash and Equilibrium Constants Calculations using the Soave-Redlich-Kwong equation of state
Authors

Housam Binous
Organization: KFUPM
Department: Chemical Engineering
URL: http://sites.google.com/site/homepageofdrhousambinous/
Nasri Zakia
Organization: National Institute of Applied Sciences and Technology
Department: Chemical Engineering Department
Revision date

2005-12-19
Description

In the notebook flash.nb, we perform flash calculations of a mixture of hydrocarbons (ethane, propane, n-butane and n-pentane) using the Rachford-Rice equation. The phi-phi method, based on the SRK equation of state, is used to compute the equilibrium constants. We also find the True Vapor Pressure of the mixture. All results are in agreement with those given by HYSYS 3.2 as well as the results in the Master's thesis of Romain Privat from the Ecole Nationale Supérieure des Industries Chimiques de Nancy (Nancy, 2005) under the supervision of J-P Corriou.

In the notebook HS_SRK_Example4_10.nb, we obtain equilibrium constants, compressibility factors, molar volumes and densities using the Soave-Redlich-Kwong equation of state for a mixture of methane, ethane and propane. We find the same results as those given by Henley and Seader in Example 4-10 page 175 in Equilibrium-Stage Separation Operations in Chemical Engineering, Wiley, 1981.
Subjects

*Engineering > Chemical Engineering
*Science > Chemistry
Keywords

Flash Calculations, equilibrium constants, compressibility factors, molar volumes, densities, hydrocarbons, Soave-Redlich-Kwong equation of state, true vapor pressure, Rachford-Rice equation, methane, ethane, propane, butane, pentane
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FLASH.nb (13.7 KB) - Notebook [for Mathematica 5.2]
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HS_SRK_Example4_10.nb (13.3 KB) - Notebook [for Mathematica 5.2]