Methyldiethanolamine, also known as N-methyl diethanolamine and more commonly as MDEA, is the organic compound with the formula CH₃N(C₂H₄OH)₂. It is a colorless liquid with an ammonia odor. It is miscible with water, alcohol, and benzene. As a tertiary amine, it is widely used as a sweetening agent in chemical plants, oil refineries, syngas, and natural gas production. MDEA is less corrosive with lower energy requirements used in acid gas removal applications.

MDEA is an excellent solution for selectivity between H2S and CO2 removal. It can be used in higher concentrations up to 55wt%.


Contact Coastal Chemical to learn how we can assist in H2S and COS removal.

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