The purpose of a glycol dehydration unit is to remove water from natural gas and natural gas liquids. When produced from a reservoir, natural gas usually contains a large amount of water and is typically completely saturated or at the water dew point.

This water can cause several problems for downstream processes and equipment. At low temperatures the water can either freeze in piping or, as is more commonly the case, form hydrates with CO2 and hydrocarbons (mainly methane hydrates). Depending on composition, these hydrates can form at relatively high temperatures plugging equipment and piping. Glycol dehydration units depress the hydrate formation point of the gas through water removal.

A Gas Dehydrator works by passing a moisture absorbing liquid (ethylene glycol) downward through a contactor tower as a wet gas is passed upward through the tower. The moisture from the gas is absorbed into the liquid. The moisture rich glycol is then passed into an atmospheric heater where it is heated to a temperature high enough to boil off the collected moisture. The glycol is then pumped back to the top of the tower.

Allow us to help you with your next Glycol Dehydration Project

EN-FAB engineers and sales professionals are available to discuss your requirements

What we need to know

• Gas Flow Rate MMSCF / Day

• Target micron size, min. & max.

• Sales Line Pressure

• Condensate or Oil Flow Rate, BBL / Day

• Water Flow Rate BBL / Day

• Operating Temperature

• Specific Gravity

• Sour Gas, H2S Content ppm

• CO2 mol %