Regarding the issue of rich liquid CO2 load
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When simulating flue gas decarbonization in power plants using the MEA method, after CO2 in the flue gas is absorbed by the absorbent solution, it flows out from the bottom of the tower and is known as the rich liquid. By good absorption efficiency and high CO2 load in the rich liquid, does it mean that most of the CO2 exists in the form of MEACOO-?
Mainly MEACOO-, as well as HCO3-, CO3--, and CO2. It exists in these forms, I guess. MEACOO – accounts for the vast majority
Reply to 2# cindylee: Yes, CO2 in the rich liquid exists in these forms. The CO2 load is defined as the ratio of the molar concentration of CO2 in the absorption solution to the molar concentration of the absorbent in the same solution. So, does the molar concentration of CO2 in the absorption solution refer to the total concentration of CO2 present in these various forms? What is the total concentration of the absorbents in the absorption solution? Because in the rich solution, the MEA exists in the forms of MEA, MEAH+, and MEACOO-.