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

Abstract

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.