Engineered glycol dehydration packages that strip water vapor from natural gas streams — protecting pipelines from hydrate formation and corrosion while meeting sales-gas water-content specifications.
Raw natural gas leaving the wellhead carries free and entrained water vapor. Left untreated, that moisture condenses inside pipelines and process equipment, forming ice-like hydrate plugs and accelerating internal corrosion. Our Gas Dehydration Units use the industry-standard glycol absorption process — built around triethylene glycol (TEG) as the drying agent — to bring the water dew point of the gas stream down to pipeline and sales-gas specification before it leaves the facility.
Each unit is engineered around your feed gas composition, water content, and required outlet dew point, then skid-mounted, shop-tested, and delivered ready for tie-in — with an optional BTEX vapor recovery package where emissions regulations require it.
Lean glycol absorbs water from the gas in the contactor, then is regenerated by heat and recirculated — a continuous, closed-loop cycle.
Wet gas passes through inlet filtration to remove liquids and solids before entering the contactor, protecting the glycol from contamination.
Lean glycol flows down through the contactor while wet gas rises through trays or structured packing, absorbing water vapor on contact.
Dry gas leaving the top of the contactor is routed through a cross-exchanger, pre-cooling the incoming lean glycol before it enters the column.
Water-rich glycol leaving the contactor passes a reflux coil that cools the still column overhead — cutting glycol losses and preheating the rich stream.
The rich glycol enters a flash drum where entrained hydrocarbon vapors and liquids are separated out before regeneration.
Flashed glycol is filtered to remove solids and degradation products, then preheated by cross-exchange against hot lean glycol leaving the reboiler.
In the still column and reboiler, heat boils off the absorbed water, restoring the glycol to specification purity; optional stripping gas drives purity even higher.
Regenerated lean glycol is cooled and pumped back to the contactor, closing the loop, while still-column overhead vapor is vented, flared, or routed to BTEX recovery.
Every Gas Dehydration Unit is built around the same proven equipment train, engineered and shop-assembled as a single skid.
Tray or structured-packing absorber where lean TEG strips water vapor from the rising gas stream.
Cools still column overhead to minimize glycol carryover losses and preheat the rich glycol feed.
Separates entrained hydrocarbon vapors and liquids from rich glycol ahead of regeneration.
Regenerator column where absorbed water is boiled off to restore glycol to lean specification.
Supplies regeneration heat, temperature-optimized to drive off water without thermally degrading the glycol.
Recover heat between hot lean and cool rich glycol streams, improving overall thermal efficiency.
Particulate and carbon filters protect the glycol from solids, degradation products, and foaming agents.
Glycol powered or electric pumps maintain continuous lean glycol circulation to the contactor.
Recovers benzene, toluene, ethylbenzene, and xylene vapors from the still overhead where emissions limits require it.
Field dehydration ahead of gathering lines, preventing hydrate formation in cold climates and long tie-back pipelines.
Central processing facilities dehydrating commingled gas streams to meet downstream pipeline specifications.
Compact, weight-optimized skids engineered for offshore platform footprint and motion constraints.