International Journal of Greenhouse Gas Control, cilt.131, ss.1-8, 2024 (SCI-Expanded)
In this research the carbon dioxide absorption using Monoethanolamine (MEA), Piperazine (PZ) and N-Metil-2-
pirolidon (NMP) solvents and their different blends (MEA/NMP, PZ/NMP, MEA/PZ) in packed column reactor
filled with Raschig rings was investigated and compared for efficient carbon dioxide absorption. The process was
followed in a countercurrent regime under a liquid flow rate of 200 mL/min, gas flow rate of 2.5 L/min, and CO2
concentration of 50,000 ppm. Carbon dioxide removal efficiency (%), absorption capacity (mol CO2/mol solvent), overall mass transfer coefficient (1/min) and absorption rate (mol/l.s) were monitored. The highest obtained values for carbon dioxide removal efficiency, absorption capacity and overall mass transfer coefficient
were 57.5%, 0.148 mol CO2/mol solvent and 2.178 min− 1 respectivelly when 0.03 M MEA/0.07 M PZ in a hybrid
system was used. It was concluded that PZ blends with MEA were successful absorbent as the organic physical
solvent whereas NMP didn’t show improving effect in blends with MEA on the absorption efficiency.