Glycol Dehydration (Enhanced)

TEG contactor sizing, Hammerschmidt hydrate depression, and McKetta-Wehe water content.

Gas Flow (MMscf/d)

Pressure (psia)

Temperature (°F)

Gas SG

Required Dew Point (°F)

TEG Concentration (wt%)

TEG Circ. Rate (gal TEG/lb H2O)

Number of Trays

Inhibitor (for hydrate calc)

Inhibitor Conc. (wt%)

Water Content (inlet)

lb/MMscf

Water Content (outlet)

lb/MMscf

Water Removed

lb/day

TEG Circ.

gal/hr

Hydrate ΔT

°F depression

Method

McKetta-Wehe: W = A × exp(B × T) / P. Simplified water content correlation for sweet natural gas.

Hammerschmidt: ΔT = K_H × X / (M × (1-X)). Hydrate temperature depression from thermodynamic inhibitor injection.

TEG circulation: Circ = water removed × gal/lb ratio. Typical 2-5 gal TEG/lb water.

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