Problems in simulating azeotropic compositions
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Dear HaiChuan friends: During the simulation calculations, issues related to azeotropic systems arose. Data on the azeotic compositions were included in the selected equation of state, but the simulation results showed no difference between including these data and not including them. What is the reason for this? The azeotemp of methanol and nonane is 64°C, and the temperature at the top of the distillation column is 70°C. Under normal conditions, all of the nonane should have risen to the top, but the simulation results show that it remains at the bottom of the column. Note: Methanol is present in large quantities, enough to carry the nonane away. Thank you!
You can attach the file you’ve created, so everyone can take a look at it
The key is whether there is a binary interaction parameter in the software
“\"Data on azeotropic compositions were added to the equation of state\"? What does this mean?