How to estimate ternary phase equilibrium using the group interaction parameter of binary regression?
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I would like to ask experts: generally, binary equilibrium data can be used to regress the interaction parameters between groups, thereby allowing the estimation of phase equilibrium values for similar systems. For example, by using data on heptane and sulfolane, it is possible to estimate the phase equilibrium of a hexane-sulfolane system. But how can the group parameters obtained from binary equilibrium data be used to estimate tertiary phase equilibrium data? For instance, how can one estimate the phase equilibrium of a hexane+benzene+sulfolane system? I would appreciate some guidance from experts; thank you!
Has LZ solved this problem? I’m wondering too; could you give some guidance?
Program using a tridiagonal matrix. It is described in books such as Guo Tianmin’s \"Equilibrium of Multiple Components in Enterprises and Distillation\".
Reply to 2# Geili Haichuan: It’s gone. Do you know that? We can discuss it together when we have time
Reply to 3# dongwenwei531: Thank you for the advice. Do you have any pre-written programs? Could you send me an example of something you’ve worked on? Learn from it* – QQ23591366
Reply to 2# Geili Haichuan: This is pretty similar to what I did. What I worked on was an aromatic extraction system; I created an extraction model using a decanter and tested it, and it seems to be possible to simulate it, but the feed composition needs to be entered. Also, for the choice of equation of state, the UNIFAC model was selected, and no interaction parameters were entered, which puzzles me; are they available in the ASPEN database? So what’s the point of going back to the data?……
Reply to 4# wzhr: This is pretty much similar to what I did. I worked on an aromatic extraction system; I created an extraction model using a decanter and it seems that simulation is possible, but the feed composition needs to be entered. Also, for the choice of equation of state, the UNIFAC model was selected, and no interaction parameters were entered (it seems they aren’t necessary), which puzzles me; are they available in the ASPEN database? So what’s the point of going back to the data?……
Reply to 7# Geili Haichuan: Hello, how is progress on your aromatic hydrocarbon extraction work? Could we discuss it? QQ: 479359980
Reply to 8# huoyueyang: I still don’t quite understand this
Has the original poster resolved this issue? Could I ask for some advice?