Vapor-liquid-liquid equilibrium (VLLE)
- Last UpdatedNov 07, 2025
- 1 minute read
In the Fluid Editor, in the System section, you can select Vapor/Liquid1/Liquid2 (VLLE) for the Phases option for compositional Fluid Types. The vapor-liquid-liquid equilibrium (VLLE) includes a vapor phase and two immiscible liquid phases. You can use VLLE with the Separator model in the Process Library, which is only visible in the Model Writing role.
Limitations
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You cannot use VLLE in high pressure systems.
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Currently, we do not support VLLE in Fluid Flow or Dynamics mode.
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You can use VLLE in the Column model. However, it currently does not support multi-stage contactors.