Selection of Amine in Natural Gas Sweetening Process for Acid Gases Removal: A Review of Recent Studies

Natural gas (NG) plays an important role in different industrial and commercial sectors in India; especially in power generation and fertilizers industries. Raw natural gas coming from reservoirs to a process plant is rich in carbon dioxide & hydrogen sulphide, which not only corrode pipelines when reacted with water but also reduces the net heat content of sales gas. To meet the sales gas specification it is important to minimize CO2/H2S content. Several alkanolamines have been used for acid gas removal from natural gas. The aim of this article is to provide an overview on application of monoethanolamine (MEA), diethanolamine (DEA), methydiethanolamine (MDEA) and mix composition. These alkanolamines on gas sweetening process to minimize the CO2 content and maximize heat content in sales gas.