%20(1).png)
Petroleum Fraction Properties
Example-style fraction properties based on API and D86 distillation data.
First 10% off
°F
Mid-point
°F
90% off
°F
°F
Bulk Fraction Parameters
SG:
--
Watson K:
--
MW:
--
Flow Properties:
Density:
--
g/cm³
Viscosity:
--
cSt
Cp:
--
BTU/lb·°F
Hv Liquid:
--
BTU/lb
Hv Vapor:
--
BTU/lb
Heat Vap:
--
BTU/lb
Calculations use simple empirical correlations based on API gravity, Watson K and average boiling point. Use results for training / quick estimates only – not for detailed design work.
Correlations (simplified):
SG60 = 141.5 / (API + 131.5) KWatson ≈ T̄1/3 / SG ρT ≈ ρ60 / [1 + α (T − 60 °F)], α ≈ 3.5×10⁻⁴ /°F
Other properties estimated by smooth empirical trends vs. SG, K and flow temperature.
SG60 = 141.5 / (API + 131.5) KWatson ≈ T̄1/3 / SG ρT ≈ ρ60 / [1 + α (T − 60 °F)], α ≈ 3.5×10⁻⁴ /°F
Other properties estimated by smooth empirical trends vs. SG, K and flow temperature.
