CO₂ Absorbing Capacity of MEA

Figure 4

CO₂ absorbing capacity of MEA for several levels of aqueous MEA concentration (), obtained using the bubbling method. Yeh and Bai [22] used a reactor with 200 mL of solvent and a gas flow rates of 2–10 SLPM of 8–16% of CO₂ diluted in clean air. Temperature varied from 10 to 40°C. Rinprasertmeechai et al. [23] used a stirred reactor containing 50 mL of 30% (w/w) aqueous MEA concentration at 25°C and with a simulated flue gas containing 15% CO₂, 5% O₂, and 80% N₂ and flowing at 0.05 SLPM. Kim et al. [24] used a stirred reactor with 1 L of 30% (w/w) aqueous MEA at 25°C with 30 vol% CO₂ diluted in N₂ and a flow rate of 1 SLPM. All works were conducted at atmospheric pressure.