Diglycolamine (Diglycolamine or DGA) is a chemical compound from the group of amines, which is mostly used as an absorbent of acid gases in various industries. Its chemical formula is C₄H₁₁NO₂ and it is usually used in the processes of absorbing gases such as carbon dioxide (CO₂) and hydrogen sulfide (H₂S). This material is used as a solvent in some refinery processes, natural gas and chemical industries.
DGA is important because of its high absorption characteristics for acid gases, especially in gas sweetening operations. This material has a high boiling point and viscosity and works well in high pressure processes. Also, due to its alkaline properties, it is effective in reducing the concentration of acid gases.
Technical Characteristics
| Chemical Formula | C4H11NO2 |
| Other names | Ethanol,2-(2-aminoethoxy); β-(β-Hydroxyethoxy)ethylamine; β-Hydroxy-β’-aminoethyl ether; Diethylene glycol amine; Diethylene glycol monoamine; 1-Amino-2-(2-hydroxyethoxy)ethane; 2-(2-Aminoethoxy)ethanol; 2-(2-Hydroxyethoxy)ethylamine; 2-Amino-2′-hydroxydiethyl ether; 2-Aminoethoxyethanol; 2-(Hydroxyethoxy)ethylamine; 2-Aminoethyl 2-hydroxyethyl ether; Aminoethoxyethanol; Diglycolamine agent; 5-Hydroxy-3-oxapentylamine; NSC 86108 |
| CAS Number | 929-06-6 |
| Melting point | -12 °C |
| Molecular mass | 105 g/mol |
| Appearance | Colorless liquid |
Applications
- Removal of COS from liquid hydrocarbon vapor
- Solvent
- Removal of H2S and CO2 from gas and aliphatic hydrocarbon liquids
- Foam preparation and stabilizer
- Production of some cleaning products and household disinfectants
Environmental impact of Diglycolamine (DGA)
Consumption of DGA can have several environmental effects, the most important of which is due to the decomposition and penetration of this substance and its derivatives in the environment. If DGA or its degraded derivatives enter surface or groundwater, they can degrade water quality and adversely affect aquatic organisms. DGA is water soluble and therefore may enter water sources if not properly managed.
Safety Measures and Regulations for Handling Diglycolamine (DGA)
To work with diglycolamine (DGA), specific instructions and safety measures must be followed to avoid possible risks to human health and the environment. This substance can irritate the skin and eyes and cause more serious health problems if inhaled or swallowed. It is recommended to use gloves, protective clothing, goggles, and a breathing mask when working with this material.
Packing
This chemical is available in 200 kg metal barrels and/or IBC.