Lean Oil Absorption Calculator

About This Calculator

Designs lean oil absorption systems using GPSA methods. Implements Kremser equation for stage calculations with component-specific K-values.

Key Equations

• Absorption Factor: A = L / (K × V)
• Kremser: η = (A^N+1 - A) / (A^N+1 - 1)
• Target: A = 1.4-2.5 for C₃ recovery

Typical Operating Ranges

• Oil/Gas Ratio: 1.5-4.0 gal/Mscf
• Absorber Pressure: 400-1000 psia
• Lean Oil Temp: 80-100°F
• C₃ Recovery: 70-95%

Design Notes

• Lower temperatures improve K-values (better absorption)
• Higher pressure increases recovery efficiency
• Heavier oil absorbs better but harder to regenerate
• Reboiler duty is the major operating cost
• Rich oil NGL content >25% may cause stripper issues