https://doi.org/10.3390/pr9122140
“The reaction kinetic data between CO2 and aqueous tertiary amine (TEA and DEEA) solution with temperatures ranging from 293 K to 313 K was listed in Table A1. In the CO2-tertiary amine-H2O system, amine itself is the major contributor to the reaction and the contributions of OH− and water can be negligible [15,16]. Then, the base-catalyzed hydration mechanism (Equations (1)–(3)) was used to interpret the possible reaction mechanism of CO2 when reacting with aqueous TEA and DEEA solutions. The collected kinetic data shown in Figure 3 (Table A1) was fitted by Equation (5) to verify the possible reaction order of CO2 absorption in amine solution at the temperatures of 293, 298, 303, 308, 313 K, in which the reaction order is approximately equal to one (1.30–1.36 for TEA and 0.83–1.0 for DEEA) with respect to amine concentration over temperature ranging from 293 to 313 K, respectively.”
