Function of the reboiler By heating the glycol in the still and reboiler to near its boiling point, the glycol releases virtually all of the absorbed water and any other compounds and is then cooled for reuse. The heat is usually supplied through a fire tube in the reboiler in which natural gas is burned.6 jul 2015
How does a glycol regeneration system work?
The water-rich glycol leaves the tower at the bottom and goes to the reconcentration system. In the reconcentration system, the wet glycol is filtered of impurities and heated to 400 degF [204 degC]. Water escapes as steam, and the purified glycol returns to the tower where it contacts wet gas again.
How does a TEG system work?
TEG dehydration utilizes a liquid medium (triethylene glycol) to pull moisture out of recovered natural gas, whereas adsorption uses solid desiccant materials to eliminate moisture associated with produced gas.
What is glycol operation?
The glycol removes water from the natural gas by physical absorption and is carried out the bottom of the column. ... This step is necessary as the absorber is typically operated at high pressure and the pressure must be reduced before the regeneration step.
What is the purpose of glycol contactor?
The purpose of a glycol contactor is to remove water from a natural gas stream. When natural gas is produced, it typically contains a large amount of water that can be saturated or is at the water dew point. Natural gas that contains enough water can cause problems with downstream separations and equipment.
What is a glycol regenerator?
The glycol regenerator is an integral part of Exterran's dehydration unit consisting mainly of a reboiler and still column. It is used to regenerate glycol by removing water vapor. Regenerator lean glycol is used to dry natural gas.