How to choose methods for the physical properties of several mixtures?
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For a mixture of methanol, thiols (74-93-1), dimethyl sulfide (75-18-3), and water, what physical property methods should be used?
Help needed. Sea friends, please feel free to speak up.
I tried chao-sea peng-rob; those two seem to work, but the results differ greatly. Solve? ?
Please explain. I need help from an expert. Thank you
Those two do not have binary interaction parameters; CS is a general correlation model that does not require binary parameters, but it is inaccurate for simulating water and other alcohols. PR is a equation of state method; unmodified PR cannot simulate polar substances such as water at all. It’s normal that the results are incorrect even though simulation is possible. CPA is a new method introduced in V8.8, specifically designed to simulate organic systems containing polar substances such as alcohols, water, ethers, and acids.
By that logic, is it impossible to solve this problem with 7.2? ? ? ?
Dear marine enthusiasts, how can we simulate this system at 7.2?
There is water and alcohol… Try using NRTL; this property method provides specifications for the interfacial parameters of liquid-liquid systems.
There is no latest CPA in version 7.2; version v8.8 or higher is required, as this CPA was created last year