XU Hongjian, JIN Jizhao, WANG Luoqi, et al. Thermodynamic analysis of SO2 removal by N-methyldiethanolamine solution[J]. Thermal power generation, 2015, 44(12): 46-50.
XU Hongjian, JIN Jizhao, WANG Luoqi, et al. Thermodynamic analysis of SO2 removal by N-methyldiethanolamine solution[J]. Thermal power generation, 2015, 44(12): 46-50.DOI:
The feasibility of SO2 removal by N-methyldiethanolamine(MDEA)was analyzed by thermodynamics method.The enthalpy change of MDEA during reaction with SO2 can be estimated according to the thermodynamic data of CO2 removal by MDEA.The standard entropy change of the reaction can be estimated by group contribution method.Then the reaction Gibbs function change and equilibrium constant can be obtained.Compared with the thermodynamic parameters of calcium carbonate absorbing SO2
it is verified theoretically that the MDEA has better capability in removing SO2 than the calcium carbonate.The thermodynamic analysis and experiments of MDEA desorbing SO2 show that
applying the MDEA to remove SO2 can save absorbent usage and the byproduct value is higher
which is a desulphurization process with great potentials.