Department of Chemical Engineering, Shiraz University, Shiraz, I.R. IRAN
In order to increase the rate of gas absorption, chemical reaction in the liquid phase is considered. The purpose of this paper was to simulate gas absorption process by a liquid film over a spherical packing incorporating eddy viscosity and diffusivity. Second order chemical reaction for two different cases (fast and slow) were considered. The system partial differential equations obtained was solved by the use of finite difference method. In this study absorption of CO2 by mono-ethanol amine (MEA) and methyl di-ethanol amine (MDEA) were considered, and velocity and concentration profiles in the liquid film were obtained. The simulation results revealed that, increasing of turbulence in the liquid film, increases the rate of gas absorption while decreases the thickness of the reaction zone.