The rate constants and the activation energies of the reaction between carbon dioxide and 1,1,3,3-tetramethylguanidine (TMG) in 1-propanol solution were measured by a stopped-flow technique at a temperature range of 288–308 K and at a TMG concentration range of – wt %. Based on the pseudo-first-order reaction for CO2 , the reaction was modeled by a termolecular reaction mechanism, which resulted in a rate constant of m 3 kmol −1 s −1 at 298 K. The activation energies were kJ/mol and kJ/mol at and wt % TMG, respectively. In addition, carbon dioxide absorption capacity was investigated using a gas–liquid contact system. |