Direct Air Capture Using Aqueous Amino Acid Solvents in a Crossflow Absorber.

ABSTRACT: Carbon dioxide (CO₂) is the most abundant of all greenhouse gases (GHGs). CO₂ levels in the atmosphere are 50% higher than in the preindustrial era, trapping heat. CO₂ removal from the atmosphere by direct air capture (DAC) is needed to achieve the internationally agreed global temperature goals. The most common CO₂ capture technology is absorption by amine-based solvents in packed columns. Amino acid solutions have recently gained attention due to their advantages over traditional amine solvents. To be implemented effectively, DAC industrial processes need to handle large airflow rates in separation absorbers. The large air and solvent flow rates preclude the use of countercurrent columns due to high-pressure drops and the occurrence of flooding

SUBMITTER: Gabitto J 

PROVIDER: S-EPMC12810392 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature