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NGL Recovery Efficiency Calculator

GPSA Section 16 Ā· GPA 2145 Ā· Campbell

NGL Recovery Efficiency Calculator
Evaluates recovery efficiency for ethane, propane, and nitrogen rejection processes using GPSA correlations. Calculates product recovery vs. temperature/pressure, energy requirements (refrigeration + compression), and compares to industry benchmarks.

Process Selection

°F
psig
Cryogenic Turboexpander
Lower temperature and lower pressure increase ethane recovery
Typical range: -140°F to 20°F

Feed Composition

mol%
mol%
mol%
Total: 100.0% - Valid composition

Operating Parameters

%
MMscfd
Industry Benchmarks:
• Ethane: 88-95% (best-in-class)
• Propane: 96-99%
• Nā‚‚ Rejection: 90-97%

About This Calculator

Analyzes NGL recovery efficiency and energy consumption for gas processing operations based on GPSA Section 16 correlations.

Key Features:

  • Recovery: Pressure & temperature dependent ethane/propane recovery
  • Energy: Refrigeration load and compression power with expander credit
  • Metrics: GPM, shrinkage, specific energy consumption
  • Benchmarks: Performance vs. industry standards

References:

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

Frequently Asked Questions

What does the process efficiency calculator measure?

It calculates NGL recovery efficiency for ethane, propane, and nitrogen rejection using GPSA correlations, along with turboexpander performance and specific energy consumption.

What is turboexpander performance evaluation?

The calculator evaluates turboexpander isentropic efficiency, power recovery, and refrigeration contribution to NGL recovery processes.

What efficiency metrics are calculated?

It evaluates NGL recovery rates for ethane and propane, nitrogen rejection efficiency, turboexpander performance, and specific energy consumption per unit of product.

How is NGL recovery efficiency measured?

NGL recovery efficiency is measured as the percentage of each component (ethane, propane, butanes) extracted from the inlet gas. The calculator evaluates recovery using GPSA Section 16 correlations based on operating pressure and temperature conditions.

What are industry benchmarks for cryogenic NGL recovery?

Cryogenic turboexpander plants typically operate at -140°F to 20°F demethanizer temperature. The calculator compares calculated recovery, specific energy consumption, and GPM (gallons per Mscf) against industry standard performance benchmarks.

What metrics does the process efficiency calculator provide?

The calculator provides component recovery percentages, refrigeration load and compression power with expander credit, GPM liquid content, gas shrinkage volume, and specific energy consumption for comparison against industry standards.