What is monoethanolamine MEA (CAS 141-43-5) used for?

What is Monoethanolamine (MEA)?

Monoethanolamine (MEA), chemical formula C2H7NO, also known as Ethanolamine, is a colorless, transparent liquid with an ammonia odor and strong hygroscopic properties. Due to its unique chemical properties, monoethanolamine plays an indispensable role in many industries.

Monoethanolamine (MEA) Uses

Monoethanolamine (MEA) plays a key role in several industrial fields due to its unique chemical properties, mainly in the following categories:

Gas Purification and Absorption

Acidic Gas Absorbents:

• Carbon Dioxide Capture: MEA is widely used in power industry flue gas decarbonization. It has a fast absorption rate and low cost, but its capacity is small and desorption energy consumption is high.
• Natural Gas Purification: Removes acidic impurities such as hydrogen sulfide (H₂S) and hydrogen cyanide (HCN), preventing pipeline corrosion.
• Petroleum Refining: Removes CO₂ and H₂S from refinery gas, improving product quality.
• Application Case: A power plant uses MEA solution to absorb CO₂ from flue gas, achieving a removal efficiency of over 90%, but the solution needs to be regenerated periodically to maintain performance.

Gas Purification and Absorption

Acidic Gas Absorbents:

• Carbon Dioxide Capture: MEA is widely used in power industry flue gas decarbonization. It has a fast absorption rate and low cost, but its capacity is small and desorption energy consumption is high.
• Natural Gas Purification: Removes acidic impurities such as hydrogen sulfide (H₂S) and hydrogen cyanide (HCN), preventing pipeline corrosion.
• Petroleum Refining: Removes CO₂ and H₂S from refinery gas, improving product quality.
• Application Case: A power plant uses MEA solution to absorb CO₂ from flue gas, achieving a removal efficiency of over 90%, but the solution needs to be regenerated periodically to maintain performance.

Industrial Intermediates and Additives

Chemical Synthesis:

• Dye Intermediates: Synthesizes high-grade dyes such as turquoise blue 13G, improving the color and fastness of textiles.
• Pharmaceutical Intermediates: Prepares pH-adjusting buffers for antibiotics, ointments, and injections, ensuring drug purity.
• Pesticide Dispersants: Helps to evenly disperse active ingredients, improving pesticide utilization.

Functional Additives:

• Rubber Industry: Used as an accelerator and vulcanizing agent to improve the performance of rubber products.
• Plastics Industry: Used as a plasticizer to improve the flexibility of materials such as polyvinyl chloride (PVC).
• Cement Industry: Used as a grinding aid to reduce grinding energy consumption and improve production efficiency.

Metal Treatment and Corrosion Prevention

Corrosion Inhibitors:

• Boiler Water Treatment: Prevents scale formation and extends boiler life.
• Coolants and Lubricants: Inhibits corrosion of metal parts in automotive engines and drilling fluids.
• Metal Cleaners: Removes oil and oxides from metal surfaces, maintaining surface shine.

New Energy and Environmental Protection

• Biodiesel Decolorization: Monoethanolamine is used as a decolorizing agent to remove impurities from biodiesel and improve purity.
• Wood Preservation: Monoethanolamine is used in alkyl ketone amine (ACQ) and copper azole formulations to enhance wood's resistance to insects and decay.

Why Choose Gneebio as Your monoethanolamine Supplier?

Gneebio is a professional chemical raw-material manufacturer with over 10 years of export experience.
We provide factory-direct pricing, stable supply capacity, custom purity grades, and fast global shipping to more than 60 countries.
For bulk buyers, Gneebio offers reliable quality control (ISO/GMP) and competitive long-term contract pricing, making us a trusted partner for industrial procurement.

Related Chemical Products from Gneebio

Bulk Industrial buyers often purchase monoethanolamine (CAS 141-43-5) together with other solvents and intermediates.

Here are the most popular products:

 Purchase Chemical Raw Materials Click here: TIANJIN GNEE BIOTECH CO., LTD.