Liquid-Phase Component Mole Fraction Formula
Liquid-Phase Component Mole Fraction calculates liquid-phase mole fraction for pvt properties workflows in phase behavior and thermodynamics.
How engineers use this formula
Use this formula when the listed inputs (z, L, V, K) are known and the assumptions behind the cited pvt properties relationship match the engineering case being checked.
Assumptions
- Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
- The declared units match the field-unit constants used in the formula.
- The cited formula applies to the selected petroleum engineering workflow.
Limitations
- The calculation does not replace a full engineering model or operating procedure.
- Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.
Common mistakes
- Mixing unit systems without converting the inputs.
- Using default example values as field recommendations.
- Applying the formula outside the source assumptions.
Default example
Using the default inputs, x equals 0.208333 fraction.
0.25
0.6
0.4
1.5
Inputs
z
fractionFeed Mole Fraction of Component
L
mol/mol feedLiquid Leaving per Mole Feed
V
mol/mol feedVapor Leaving per Mole Feed
K
dimensionlessEquilibrium Vaporization Ratio
Outputs
x
Liquid-Phase Mole Fraction
z
Feed Mole Fraction of Component
L
Liquid Leaving per Mole Feed
V
Vapor Leaving per Mole Feed
K
Equilibrium Vaporization Ratio
Source and review
reviewedGas Conditioning and Processing, Campbell, J. M. (1992)
John M. Campbell. 1992. Gas Conditioning and Processing, Campbell Petroleum Series, Vol. 1, Page 107.
Source