Amine gas treating, also known as 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 (H2S) and carbon dioxide (CO2) from gases. It is a common unit process used in refineries, and is also used in petrochemical plants, natural gas processing plants and other industries.
Processes within oil refineries or chemical processing plants that remove hydrogen sulfide and/or mercaptans are commonly referred to as sweetening processes because they result in products which no longer have the sour, foul odors of mercaptans and hydrogen sulfide.
There are many different amines used in gas treating:
- Monoethanolamine (MEA)
- Diethanolamine (DEA)
- Methyldiethanolamine (MDEA)
- Diisopropanolamine (DIPA)
- Aminoethoxyethanol (Diglycolamine) (DGA)
The most commonly used amines in industrial plants are the alkanolamines MEA, DEA, and MDEA.
Amines are also used in many oil refineries to remove sour gases from liquid hydrocarbons such as liquified petroleum gas (LPG).
Read more about Amine Gas Treating: Description of A Typical Amine Treater
Other articles related to "amine gas treating, amine, amines, gas":
... The chemistry involved in the amine treating of such gases varies somewhat with the particular amine being used ... For one of the more common amines, monoethanolamine (MEA) denoted as, the chemistry may be simply expressed as A typical amine gas treating process (as shown in the flow ... In the absorber, the downflowing amine solution absorbs H2S and CO2 from the upflowing sour gas to produce a sweetened gas stream (i.e ...
... elevated pressure and is joined by a stream of hydrogen-rich recycle gas ... The resulting liquid-gas mixture is preheated by flowing through a heat exchanger ... The resulting mixture of liquid and gas enters the gas separator vessel at about 35 °C and 3 to 5 atmospheres of absolute pressure ...
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