Absorption of carbon dioxide as a greenhouse gas from a mixture of CO2 and N2 in a continuous falling film reactor (FFR) has been designed and developed. The reactor length and inner diameter were 1m and 0.021m, respectively. In this paper, the absorption of CO2 by DEA (Diethanolamine) in FFR is studied by means of COMSOL Multiphysics and Design expert. Design expert is used to developing an empirical equation for CO2 absorption when reacting with DEA. The simulation is performed with COMSOL Multiphysics for a second-order reaction and the velocity profile is considered the effect of shear stress. The result shows that the penetration depth of CO2 in the falling film reactor is 0.006mm and the absorption rate increases with increasing gas flow velocity and inlet CO2 concentration. Also, this study is performed on low Reynolds number (1 ≤ ReG ≤ 6 and 4 ≤ ReL ≤ 40 at 298 K) which has not been considered by other researchers.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.