Chemical kinetics of carbon dioxide reactions with diethanolamine and diisopropanolamine in aqueous solutions

Abstract

Abstract Differential rates of carbon dioxide absorption into aqueous monoethanolamine (MEA), diethanolamine (DEA), and diisopropanolamine (DIPA) were measured over a wide range of carbonation ratios. Analysis of the chemical‐reaction‐rate‐controlled data showed that the chemical reaction rates for all three aminoalcohols are first order with respect to the free‐amine concentration.