Continuous increase in the global warming resulting from emission of greenhouse gases, has been a serious challenge faced by the modern world. CO2 is the major component among all greenhouse gases, which has touched the atmospheric concentration of 421 ppm in 2022. In this study, CO2 capture performance of Na2CO3 mixed with different frothing agents (tri-ethylene Glycol-butyl ether, Diethylene-Glycol diethyl ether, hexanol, octanol and pentanol) at different molar concentration has been investigated and compared numerically using Aspen Plus software. Additionally, the effects of temperature and flowrate of liquid on absorption capacity of Na2CO3 were studied. The obtained results suggested that, absorption rate of dilute sodium carbonate was increased from 45% to 99.9% after the addition of frothing agents. Absorption capacity of Na2CO3 was decreased with increasing temperature, however, increasing liquid flowrate resulted in increased CO2 absorption performance