Flash Distillation Graphical Solution
Calculates the vapor and liquid equilibrium compositions for a single-stage flash distillation of a binary mixture using mass balance and relative volatility.
📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
1. Define Input Parameters
2. Engineering Output
Bottoms Flow Rate (B)
- mol/h
- mol/h
Coefficient a (a)
- dimensionless
- dimensionless
Coefficient b (b)
- dimensionless
- dimensionless
Coefficient c (c)
- dimensionless
- dimensionless
Discriminant (discriminant)
- dimensionless
- dimensionless
Bottoms Composition (xB)
- mole fraction
- mole fraction
Vapor Composition (yB)
- mole fraction
- mole fraction
Need this calculation offline?
Download Offline Excel CalculationContext & Assumptions
Flash distillation is a fundamental unit operation in process engineering used to separate a multi-component liquid mixture into vapor and liquid phases. By reducing the pressure of a heated feed stream, a portion of the liquid flashes into vapor. This calculator solves the simultaneous mass balance and vapor-liquid equilibrium equations to determine the resulting compositions of the exit streams.
Legal Disclaimer & Limitation of Liability
The results provided by this tool are for educational and preliminary estimation purposes only.
NO WARRANTY: MyEngineeringTools.com makes no warranties, express or implied, regarding the accuracy or applicability of these results to any specific engineering project.
LIMITATION OF LIABILITY: MyEngineeringTools.com SHALL NOT BE LIABLE for any direct, indirect, incidental, or consequential damages arising from the use of this data.
All results MUST be independently verified by a qualified professional engineer before implementation in any industrial or physical environment.