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Glycol dehydration. Glycol dehydration is a liquid desiccant system for the removal of water from natural gas and natural gas liquids (NGL). It is the most common and economical means of water removal from these streams. [1] Glycols typically seen in industry include triethylene glycol (TEG), diethylene glycol (DEG), ethylene glycol (MEG), and ...
Initial separation was at 500 psia (88.3 bar). There was a single 3-phase separator with provision for 350 bpd of produce water. The produced gas was dried in a glycol contactor. Condensate was dried in coalescing filters. Dehydrated oil and gas streams were combined and sent to Ekofisk in a single 2-phase pipeline. [1]
Gas is dried by counter-current contact with triethylene glycol in a glycol dehydration tower. [12] Typically dried gas has a water content of 2.5 to 7 lb of water /MMSCF. Glycol contactors generally operate at 1100–1200 psi (75 to 83 bar). [4] Water-rich glycol is regenerated by heating and stripping off the water.
Clair oilfield. The Clair oilfield is an offshore oil field in Scottish territorial waters 75 kilometres (47 mi) west of Shetland in water depths of up to 140 metres (460 ft). The field is the largest oilfield on the UK Continental Shelf with an estimated 8 billion barrels of oil-in-place, according to the BP Plc's website.
3 stage compression, glycol contactor dehydration Oil export capacity 145,000 bbl/d (barrels per day) Gas compression 122 mmscf/d (million standard cubic feet per day) Gas export 59 mmscf/d Gas import 20 mmscf/d Gas lift 116 mmscf/d Gas dehydration 122 mmscf/d H 2 S removal 0.0378 m 3 /h (H 2 S scavenger) Produced water 170,000 bbl/d
Amine gas treating. Amine gas treating, also known as amine scrubbing, gas sweetening and acid gas removal, refers to a group of processes that use aqueous solutions of various alkylamines (commonly referred to simply as amines) to remove hydrogen sulfide (H 2 S) and carbon dioxide (CO 2) from gases. [ 1 ][ 2 ][ 3 ] It is a common unit process ...
A spray tower (or spray column or spray chamber) is a gas-liquid contactor used to achieve mass and heat transfer between a continuous gas phase (that can contain dispersed solid particles) and a dispersed liquid phase. It consists of an empty cylindrical vessel made of steel or plastic, and nozzles that spray liquid into the vessel.
Ethylene glycol can be recovered from the natural gas and reused as an inhibitor after purification treatment that removes water and inorganic salts. Natural gas is dehydrated by ethylene glycol. In this application, ethylene glycol flows down from the top of a tower and meets a rising mixture of water vapor and hydrocarbon gases. Dry gas exits ...