Pseudo Critical Pressure

For gas mixtures, the gas critical pressure and temperature are called pseudocritical pressure and temperature to be distinguished from those of pure components.

Pseudocritical properties of gas mixtures can be estimated from the given gas specific gravity if gas composition is not known.

Reference: Equations of State and PVT Analysis, Tarek Ahmed

Correlations

  • 1-Sutton
  • 2-Standing

Input Parameters

NameInput Value - UnitConverted ValueValidityLink to Calculation Page
Average Surface Gas Specific Gravity

0.7

SG

 Average Surface Gas Gravity (ɣg)
Correction Method

2

N2 Content

0

%

CO2 Content

5

%

H2S Content

10

%

CALCULATE

Results

CorrelationCalculated ValueWarningsRemarks
1-Sutton658.877psia
2-Standing655psia