Mathematical Modelling for the Adsorption Process of CO2 in Nanopores of Catalytic Particles in a Fixed Bed Reactor Using Numeral Inverse Laplace Transform

Theoretical analysis on the CO2 adsorption on NaX has been carried out in fixed bed reactor. In the proposed process, CO2 was passed through a stationary adsorbent bed allowing continuous operation. A one-dimensional and isothermal model was proposed to describe the adsorption process of CO2. Attention has been focused on a mathematical model to simulate the transient behavior of dissolved CO2 within the gas phase and then adsorbed into the nanopores of the solid phase (adsorbent). The simulation results were compared to the one experimental case. After, it was performed a sensibility analysis in relation to CO2 concentration within of the nanopores of the solid phase as well as accounting for the amount of adsorbed CO2 in the nanopores of the solid phase.