Thermodynamic method selection
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What thermodynamic method is better for simulating distillation separation of phenol-carbon tetrachloride system and phenol-1,2-dichloroethane system? SRK? NRTL? ....? Assuming that the polarity of water is 10.2, the polarities of phenol, carbon tetrachloride, and 1,2-dichloroethane are 3, 1.6, and 3.4 respectively.
Separate simulation of phenol-carbon tetrachloride system or phenol-1,2-dichloroethane system
No one has answered. Let me give it a try. I used NRTL and SRK to simulate the total reflux phenol-carbon tetrachloride system. When the carbon tetrachloride in the column bottom is 1wt%, the carbon tetrachloride concentration at the top of the tower under the two thermodynamics is very different.
Leave your QQ number and I will give you a method to select files
I think ntrl is more reliable. If you use srk, it is best to enter the interaction parameter Kij.
For components like this, it is best to check the literature first to find out the relevant phase diagram, and then use simulation software to calculate the phase diagram for comparison. Do not blindly trust the results of the software.
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Who knows what kind of system each equation is suitable for? Can I ask for help? Thanks.
I agree with 7th Floor, software is just a tool, and you have to make a good judgment on whether it works or not.