چكيده به لاتين
Carbon dioxide is one of the greenhouse gases, a large amount of which pollutes the environment. There are various CO2 removal method, among which adsorption is known as a more appropriate method. Various solvents are used in the gas adsorption process, and recent laboratory studies on amine-based hybrid DES solvents have been performed in this field, but numerical studies on DES solvents are very limited. In this study, the process of CO2 adsorption with DES solvent along with different amines has been investigated by modeling the response surface methodology and equilibrium modeling based on solving the governing equations. In RSM, two models were proposed to predict the amount of adsorption and carbon adsorption capacity of DES solvent, both of which had high accuracy with a correlation coefficient greater than 0.99. Optimal process conditions include 50% water concentration, 48 ° C temperature and 10 bar initial pressure. In these operating conditions, the optimal values of adsorption capacity and adsorption rate are 0.3914 mol CO2/mol DES and 0991 mol CO2/ kmol.s, respectively. is predicted. From the results of equilibrium modeling for both pure MEA and mixed ChCl-MEA with a weight ratio of 1: 8, the maximum and minimum relative error values were 13.7% and 6.26%, respectively, which are acceptable values. Also, the effect of different amino acids such as DEA, MEA and MDEA in DES solvent was investigated. Using kinetic modeling, the concentration of molar and ionic components in the electrolytic system during the reaction time was predicted by the present model that the trend of changes of each component is in accordance with similar studies.
Keywords: Carbon dioxide adsorption, Amine-based deep eutectic solvent, Response surface methodology, Thermodynamic modeling, Equilibrium modeling.
