Calculators›Molecular Sieve Design
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Molecular Sieve Dehydration Design

GPSA · UOP · BASF · Zeochem

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Molecular Sieve Dehydration Calculator
Designs molecular sieve beds for deep gas dehydration to <1 ppm water. Calculates bed sizing, regeneration cycles, and thermal swing requirements per GPSA Section 20 and UOP design guidelines.

Operating Conditions

MMscfd
psig
°F
Design for adsorption cycle

Sieve Selection & Capacity

lb/MMscf
lb/MMscf
4A: Standard for gas dehydration

Design Parameters

hours
ft/min
Typical Values:
• Cycle: 8-24 hours
• Velocity: 40-80 ft/min
• 2-3 beds (1 online, 1 regen)
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About This Calculator

Designs molecular sieve dehydration beds for natural gas processing using industry-standard correlations.

Key Aspects:

  • Capacity: Dynamic water capacity based on operating conditions
  • MTZ: Mass transfer zone length calculation
  • Sizing: Bed diameter and height determination
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