Di-Glycol Amines (DGA)

Structure

Mol. Wt. 105.14

Description

An essentially colorless, slightly viscous liquid with a mild amine odor. Miscible with water, alcohols, and aromatic hydrocarbons, but relatively immiscible with aliphatic hydrocarbons and ethyl ether. Isometric with diethanolamine; however, the primary H2N group makes it more reactive.

Applications

Removal of carbon dioxide (CO2) and/or hydrogen sulfide (H2S) from natural gas, refinery gas, aliphatic hydrocarbon liquids, and other sour hydrocarbon streams. DIGLYCOLAMINE agent is also used for carbonyl sulfide (COS) removal from liquid hydrocarbon streams and as a selective solvent for recovery of aromatics from refinery streams.