Metrohm IC: Determination of various amines in refineries via IC

Optimised separation on wide range in combination with alkaline and alkaline earth metals.

Petroleum and natural gas products can contain acid gases such as hydrogen sulfide and carbon dioxide resulting in a “sour” product. These acid gases are corrosive and undesirable in final gas products.

Alkanolamines are used in refineries and natural gas plants to assist in acid gas removal. Amines which are weak bases react with the weak acid gases to form salts. This process is known as gas sweetening. Monitoring amines in solutions used for gas sweetening is ideal for profiling waste and optimising amine content to minimise plant maintenance. The choice of amine used in gas sweetening can vary from plant to plant. Some considerations for the choice of amine used includes what acid is being treated in the gas and the solubility of the acid gas in the amine.

Determination of various amines in refineries
via Ion Chromatography

The demonstration of the separation of a variety of amines that can be used for gas sweetening by cation exchange chromatography with nonsuppressed conductivity detection is documented in our application database. The amines analysed in the work include, monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA),
3-methoxypropylamine (MOPA), diglycolamine (DGA), methyldiethanolamine (MDEA), and cyclohexylamine. Also demonstrated is the separation of amines in the presence of standard cations.

To learn more about the application, please contact us using the application form below or simply give us a call.

940 Professional IC Vario – superior flexibility

With the 940 Professional IC Vario, you are ready to meet any analytical challenge in ion chromatography. Regardless of which parameters you need to determine and the properties of the sample matrix – the right sample preparation, the right detector and the required degree of automation are available based on a single modular system.

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