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NGL Recovery Process Optimization

Economic Analysis · GPSA · Campbell

NGL Recovery Process Optimization
Optimizes NGL plant economics balancing product recovery against operating costs. Uses GPSA Section 16 correlations and GPM-based production calculations. Includes ethane rejection analysis for market-responsive operations.

Feed Gas Conditions

MMscfd
mol%
mol%
Typical Values:
Lean gas: C2 3-6%, C3+ 1-3%
Rich gas: C2 6-12%, C3+ 4-8%

Process Selection

%
Typical range: 85-98%
Process Types:
Turboexpander: 85-98% C2 recovery
JT Valve: 20-50% C2 (low CAPEX)
Refrigeration: 40-80% C2
Enhanced: 90-99% C2 (max recovery)

NGL Product Prices

$/gal
$/gal
$/gal
Mont Belvieu purity product prices. C2 typically $0.15-0.50/gal; C3 $0.70-1.20/gal.

Operating Costs

$/MMBtu
$/kWh
Optimization Goal:
Maximize: NGL Revenue - Operating Costs
Including ethane rejection economics

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About This Calculator

Optimizes NGL recovery plant economics using GPSA Section 16 methodology and GPM-based production calculations.

Key Features:

  • GPM Analysis: Industry-standard gallons per Mscf metric
  • Process Types: Turboexpander, JT valve, refrigeration
  • Ethane Rejection: Breakeven analysis for low C2 prices
  • Shrinkage: Residue gas volume reduction

References:

  • GPSA, Section 16
  • GPA 2145 - Physical Constants
  • Campbell Gas Conditioning, Vol. 2

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