Efficient Carbon Dioxide Capture in Packed Columns by Solvents Blend Promoted by Chemical Additives

This work assessed the carbon dioxide capture performance by different aqueous amines, in comparison to standard amine monoethanolamine (MEA), the standard for the capture process, A continuous operation was implemented, and a packed column served as the scrubber to develop effective sorbents for carbon capture and separation (CCS) procedures. The impact of operating variables such as carbon dioxide loading, feed amine temperature, solvent amine weight concentration, simulated gas flow rate, carbon dioxide feed concentration, amine type, and liquid flow rate was examined. Carbon dioxide concentration; absorption efficiency and overall mass transfer coefficient measurement as an indicator for the effectiveness of the capture process. For each system, the overall amine concentration was maintained at 30 weight percent and the treating a gas mixture containing 15% CO2 (by volume) mimicking a fossil- derived flue gas. according to the findings of the experimental result show the raising of the operating temperature had no appreciable impact on the effectiveness of CO2 removal in either combination. On the other hand, the efficiency of CO2 removal rises with rising amine concentration, volume percentage of amine in the solvent, and liquid flow rate; on the other hand, the efficiency of CO2 removal falls sharply with increasing gas flow rate. The maximal CO2 removal coefficients achieved by MEA + DEA and MEA + TEAM aqueous solutions under ideal circumstances are 97.9% and 91.9%, respectively. Additionally, given the experiment's operating conditions, the highest volumetric total gas-phase mass transfer coefficient was found to be 110 and 67.5 (kmol/m3 h kpa), respectively.