Calculators › Dehydration Gas Loss
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Dehydration Gas Loss

TEG System · Flash Gas · Reboiler Fuel · Recovery Economics

TEG Dehydration Gas Loss Calculator
Calculates comprehensive gas losses from glycol dehydration units using GPSA methodology. Includes flash gas, stripping gas, reboiler fuel consumption, and recovery economics for emissions reporting and optimization.

Operating Conditions

MMSCFD
psig
°F
air=1.0

Water Content

lb/MMSCF
lb/MMSCF
wt%
Pipeline spec: 4-7 lb/MMscf
Cryogenic: 0.1-1 lb/MMscf

Stripping Gas

scf/gal TEG
Stripping gas improves TEG purity from 98.5% to 99%+. Typical: 2-10 scf/gal.

Flash Gas Recovery

%

Economics

days/year
$/Mscf
Typical Gas Losses:
• Without recovery: 1.5–3%
• With flash recovery: 0.8–1.5%
• Industry target: <1.5%

📚 Learn the Theory

Understand TEG absorber losses, regenerator fuel, flash gas recovery, and optimization strategies

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About This Calculator

Calculates gas losses from TEG dehydration systems.

Gas Loss Components:

  • Flash Gas: Dissolved gas released when rich TEG depressurizes (50-70% of loss)
  • Still Overhead: Gas from regenerator including stripping gas
  • Reboiler Fuel: Gas burned for glycol regeneration heat

Key References:

  • GPSA
  • EPA 40 CFR Part 98 Subpart W
  • API RP 14E

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