Invention Reference Number
A novel molecular sorbent system for low energy CO2 regeneration is developed by employing CO2-responsive molecules and salt in aqueous media where a precipitating CO2--salt fractal network is formed, resulting in solid-phase formation and sedimentation. The sediment can easily be separated from the aqueous solvent. As a potential breakthrough strategy for thermal energy reduction in CO2 capture, the separated solid sorbent releases CO2 with minimum heat requirements, because of the minimized amount of diluent in the solid network. The required regeneration energy using the molecular complex is ~3.4 GJ/ton CO2 which is ~20 % less than that of the traditional 30 wt.% aqueous monoethanolamine which requires ~4.3 GJ/ton CO2.
Contact
To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.
