Carbon dioxide gas is one of the main environmental pollutants that can cause irreparable damage by climate change; Therefore, solving this problem requires serious attention. At present, chemical adsorption of CO2 with aqueous solutions of alkanoamines is the most common commercial separation method with high efficiency in the industry. Among the various methods of removing carbon dioxide from flue gases, the monoethanolamine (MEA) aqueous solvent adsorption process has been the most important option in industrial applications in recent years. In this research, MEA solvent has been used to evaluate the amount of CO2 absorption. The experimental range of the studied components includes temperature of 20-60 degrees Celsius, pressure of 3.5-9.5 times and solvent concentration of 2.5-8.5% by weight. Loading and CO2 uptake percentages in MEA aqueous solution were obtained in the range of 0.70-2.615 and 17.81-48.65%, respectively. Analysis of the results A quadratic polynomial pattern with response level method (RSM) was used. Numerical optimization has also been used to find the maximum load and absorption percentage under optimal conditions. Under optimal conditions, the maximum load and absorption percentage are estimated to be 0.555 and 44.17, respectively.
