Data in brief on CO₂ absorption-desorption of aqueous-based amino acid solvents with phase change behaviour

The data presented in this paper are related to the published research article "Development of aqueous-based phase change amino acid solvents for energy-efficient CO₂ capture: The role of antisolvent" [1]. The raw and analyzed data include the equilibrium and kinetics of CO₂ absorption, the density and concentration of different CO₂-containing species at upper and lower liquid phases, and particle size distribution of solid particles precipitated during CO₂ absorption of aqueous and aqueous-based amino acid solvents. In addition, the SEM images of solid precipitates at the end of CO₂ absorption are presented. The detailed values of this phase change amino acid solvent are crucial for large-scale implementation of CO₂ capture systems with phase change behavior.