Monoethanolamine (MEA) Hydrate Inhibitor
CAS Number: 141-43-5
Monoethanolamine (MEA) is used in oilfield and gas processing operations as a thermodynamic hydrate inhibitor and acid gas (CO₂/H₂S) scavenger. As a hydrate inhibitor, it depresses the hydrate formation temperature in gas pipelines and subsea flowlines. MEA is also widely used in gas sweetening plants to remove CO₂ and H₂S from natural gas streams, with regeneration efficiency above 90%.
Technical Specifications
| appearance | Clear colorless liquid |
| purity (%) | ≥99.0 |
| color (APHA) | ≤10 |
| water content (%) | ≤0.3 |
| density (g/cm³, 20°C) | 1.010–1.020 |
Applications
- Gas pipeline hydrate prevention
- Subsea flowline hydrate inhibition
- Natural gas sweetening (CO₂/H₂S removal)
- Acid gas absorption in gas processing plants
- Combined hydrate and corrosion control systems
Key Features
- Thermodynamic hydrate inhibitor — lowers hydrate equilibrium temperature
- Dual function: hydrate inhibition and acid gas absorption
- Regenerable for cost-effective continuous use
- Compatible with methanol and MEG hydrate inhibitor systems
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