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Pipeline Drying

Methanol · Dehydration · Water Removal

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Pipeline Drying & Purging Calculator
Calculates drying time, purge gas volumes, and moisture removal rates for pipeline commissioning. Determines dew point depression and air circulation requirements after hydrostatic testing.

Pipeline Specifications

inches
miles
psig

Temperature Conditions

°F
°F
%

Drying Method

Methanol Absorption:
• Most common method
• 0.7 lb water per lb methanol
• Density: 6.63 lb/gal

Target: Lower dew point prevents hydrate formation

Typical dew points:
Gathering: 40-60°F
Transmission: 20-40°F
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About This Calculator

Calculates methanol requirements for pipeline drying and water removal from gas lines.

Key Aspects:

  • Methanol: Most common drying agent
  • Water Content: Varies with P & T
  • Hydrates: Form below dew point
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