The Logic Behind The Magic." Glycol Dehydration System 1"

Sweet gas from Amine Overhead KO drum will flows to Triethylene Glycol Contactor where it will have its water contect reduced by contact with triethylene glycol solution. The Glycol unit consists of Glycol Contactor and Glycol Overhead Knock Out Drum.

Triethylene Glycol Contactor.
Sweet gas from Amine Overhead Gas Knock Out Drum is sent to the Glycol Contactor through the integral scrubber for removing free liquids, water and hydrocarbon condensate from the gas. Incoming gas is evenly distributed over the cross sectional area by an inlet distributor. In this distributor, inlet momentum of gas-liquid mixture is broken to enable disengagement of gas from liquid. The integral scrubber consists of mist eliminator to remove the free liquid present in the incoming gas. It is designed to operate at 45.16 barg at 43.85 - 444.25 degC. The hydrocarbon liquids from the separator leave from the bottom of the vessel. The flow is controlled by an LV

After the removal of free liquids, the gas enters the absorber section, Chimney trays are provided for proper distribution of the gas through the column. Dehydration of the gas takes place across height structured packing, against a counter current flow of lean Tri-Ethylene Glycol.

The dehydrated gas leaves to of the column passing through vane pack, mesh, and mist eliminator are provided to remove glycol before leaving the tower. The glycol is ditributed across the packing with high efficiency liquid distributor. As the glycol flows down the surface of the structured packing, it absorbs water from the gas. Rich glycol is collected on the top of the chimney tray and is discharged under level control valve LV to the TEG reflux condenser. Located in the TEG regeneration package.