POST-COMBUSTION CO2 CAPTURE-Advanced Amine Process (AAP)
The flue gas is bound with the chemical solvent – Advanced Amine – which binds selectively to the flue gas CO2. Raising the temperature reverses the capture reaction, releasing CO2 and allowing the solvent to be recycled.
The technology has been demonstrated successfully in the field at 90% capture rates. Based on the low physical solubility of N2 and O2 in aqueous amines, CO2 product purity is greater than 99.5% after CO2 compression and dehydration. The highly selective reaction with CO2 is an important advantage of any alkaline scrubbing process and distinguishes this process from the results obtained from physical solvents, membranes, or adsorbents.