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A.B. Lo´ pez,M.D. La Rubia,J.M. Navaza,R. Pacheco,D. Go´ mez-Dı´az 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
The carbon dioxide absorption process by 1-amino-2-propanol (MIPA) and bis(2-hydroxypropyl)amine(DIPA) aqueous solutions in bubble column reactor have been studied considering the influence of liquidphase physical properties and the amine group substitution on the overall process. Themain objective ofthis work was to establish the carbon dioxide capture reaction mechanism for these systems, and then toobtain the predominant stoichiometry to calculate the mass transfer coefficient. NMR technique wasused to determine the species present in the liquid phase during the absorption process and to confirmthe reaction mechanism. The degradation of these amines was also evaluated.