MDEA decarburization technology

1、 Process overview:

Activated MDEA is a new CO2 removal process based on N-methyldiethanolamine (MDEA) aqueous solution developed by BASF. This process is more economical and competitive than other CO2 removal methods in terms of investment, material consumption and utility costs. After absorbing and digesting this technology, our engineers and technicians further improved and developed it to make it more suitable for our national conditions. At present, many sets of decarburization units have been successfully applied.

2、 Process principle

MDEA (N-Methyldiethanolamine) is N-methyldiethanolamine, with the molecular formula of CH3-N (CH2CH2OH) 2, molecular weight of 119.2, boiling point of 246-248 ℃, flash point of 260 ℃, freezing point of - 21 ℃, and latent heat of vaporization of 519.16KJ/Kg. It is miscible with water and alcohol and slightly soluble in ether. Under certain conditions, it has strong absorption capacity for acidic gases such as carbon dioxide, low reaction heat, low desorption temperature, stable chemical properties, non-toxic and non degradable.

3、 Technical characteristics of our company:

1 Decarbonization process technology has the characteristics of both physical absorption and chemical absorption, with simple process flow and convenient operation.

2. Low energy consumption, low consumption and low investment.

3. The solution ratio is simple, and the required chemicals are easy to purchase.

4. It can adapt to a wide range of decarburization, and can remove CO2 between 1.3-8.0MPa, both of which can make the CO2 concentration in the purified gas meet the required requirements, and low CO2 concentration can make the CO2 concentration reach 2PPM.

5. It has strong CO2 adsorption capacity and weak corrosion of MDEA to equipment.