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Membrane Gas Separation

GPSA · Solution-Diffusion · Permeability

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Membrane Gas Separation Calculator
Evaluates membrane performance for CO2 removal, nitrogen rejection, and hydrogen recovery. Calculates permeate/retentate compositions, stage cut, and membrane area requirements based on selectivity.

Feed Gas Conditions

MMscfd
psig
psig
Higher pressure ratio improves separation

Feed Composition

mol%
mol%
CA: High selectivity, moderate permeability

Membrane System

%
ft²
Applications:
• CO₂ removal from natural gas
• H₂ recovery
• N₂ rejection
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About This Calculator

Calculates gas separation performance using membrane permeation with solution-diffusion model.

Key Aspects:

  • Permeability: Measured in GPU units
  • Selectivity: Ratio of permeabilities
  • Recovery: Target component in permeate
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