Glycol contactor removes the water from a wet-natural gas stream by absorption. The lean glycol is fed in through the top of the tower while the wet-natural gas is fed in through the bottom of the tower. The glycol and natural gas are flowing concurrently and upon contact the water is removed from the wet-natural gas stream. The dry-natural gas leaves through the top of the tower and rich glycol leaves through the bottom of the tower to where it is regenerated.
To knockout any free water prior to entering glycol contactor.
Lean glycol from the lean-rich exchanger is fed to glycol pumps where the pressure is elevated to the pressure of the glycol contactor.
The rich glycol regenerates to high purity glycol by heating the glycol to temperature up to 400F by a reboiler. The water is removed from the glycol at this temperature and is removed from the regenerator tower overhead. The lean glycol is then fed to the rich-lean exchanger where it pre-heats the incoming rich glycol.
The glycol after absorbing the water enters a flash vessel where hydrocarbon vapours and liquids are separated from the glycol.
Click image to enlarge or mouse over components to view information.
Enerflex has vast experience with dehydration systems including ethylene glycol and tri-ethylene glycol dehydration, as well as physical adsorption via molecular sieve dehydration. Enerflex’s dehydration systems remove entrained water to avoid liquid drop out and bring your gas stream to your required specification.