Separations Interactive Simulations

Our CDF simulations can be downloaded and used offline with the Wolfram CDF plug-in. They are also available on the Wolfram Demonstration Project website. Please contact us at if you identify problems with any of the simulations or if you have suggestions for simulations we might prepare.

Binary Vapor-Liquid Equilibrium

Mass Balances for Binary Vapor-Liquid Equilibrium (VLE)

Pxy and Txy Diagrams for Vapor-Liquid Equilibrium (VLE)

Adding One Component to a Binary Vapor-Liquid Equilibrium (VLE) Mixture

Vapor-Liquid Equilibrium Diagram for Non-Ideal Mixture

Non-Ideal Vapor-Liquid Equilibrium (VLE) Modeled by the Margules Equation

Add a Component to a Mixture with an Azeotrope

Adiabatic Flash Drum with Binary Liquid Feed

T-x-y and x-y Diagrams for
Binary VLE in Flash Drum

DePriester Chart for Hydrocarbons

Ternary Components

Basic Ternary Phase Diagram

Right and Equilateral Triangle Ternary Phase Diagrams

Ternary Phase Diagram with Phase Envelope

Ternary Phase Diagram with Alternate Phase Envelope

Hunter-Nash Method for Liquid-Liquid Extraction (LLE)

Liquid-Liquid Extraction on a Right-Triangle Ternary Phase Diagram


McCabe-Thiele Method for Methanol/Water Separation

How to Use the McCabe-Thiele Method for Fractional Distillation

Feed Stages in a Distillation Column


Fugacities in a Can of Soda

Fugacity from Equation of State for Water

Fugacity as a Driving Force for Mass Transfer

Phase Equilibrium in a Pure Fluid/Phase Diagrams

Single-Component P-V and T-V Diagrams

Phase Behavior on a Pressure-Volume Diagram

Injecting a Liquid into an Evacuated Tank

Partially Miscible and Immiscible Solutions

Vapor-Liquid-Liquid Equilibrium (VLLE)

Partially Miscible Liquids

Solid-Solid-Liquid Equilibrium

Immiscible Liquids on Pressure-Composition Diagram


Diffusion in Solids

Langmuir Isotherms for a Binary Mixture

Operation of an Absorption Column