Absorption and regeneration studies of chemical solvents based on dimethylethanolamine and diethylethanolamine for carbon dioxide capture

Present research work analyses a new chemical solvents based on the use of two tertiary amines (dimethylethanolamine and diethylethanolamine) for carbon dioxide (CO2) capture by chemical absorption taking into account the absorption behavior and the solvent regeneration degree. Regarding the first study, the absorption rate is related with the reaction mechanism at different CO2 loading. Other type of influences such as the type and amine concentration, and gas flow rate fed to the contactor were studied. In relation with solvent regeneration, several experimental procedures have been employed in order to avoid the negative characteristics of loaded‐solvent stripping. The results show the important weight of amines acidity constant upon the regeneration yield.