Raoult's Law Water Fraction in Glycol Dehydration Formula
Raoult's Law Water Fraction in Glycol Dehydration calculates mole fraction of water in lean glycol for well performance workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (P, P_v, y_w) are known and the assumptions behind the cited well performance 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_w equals 0.0294 fraction.
14.7
10
0.02
Inputs
P
psiSystem Pressure
P_v
psiWater Vapor Pressure at Reboiler Temperature
y_w
fractionMole Fraction of Water in Reboiler Vapor
Outputs
x_w
Mole Fraction of Water in Lean Glycol
P
System Pressure
P_v
Water Vapor Pressure at Reboiler Temperature
y_w
Mole Fraction of Water in Reboiler Vapor
Source and review
reviewedGas Conditioning and Processing, Campbell, J.M. (1992)
Campbell, J.M. 1992. Gas Conditioning and Processing, Campbell Petroleum Series, Vol. 2, Page 334.
Source