Mathematical modeling of temperature swing adsorption process of CO۲ in a fixed bed column with simplifying assumptions

To predict the adsorption and separation performance of carbon dioxide (CO۲), mathematical modeling of a fixed bed column is beneficial. A comprehensive mathematical model includes partial differential equations that describe the mass, energy, and momentum balances along with the kinetics and equilibrium constants. These equations are discretized in time and space domains and solve simultaneously to achieve the concentration and temperature profiles along the bed which is a time-consuming and expensive process. In this paper, a mathematical model with simplifying assumptions has been presented to predict the adsorption performance of CO۲ from a CO۲/N۲ gas mixture by the temperature swing adsorption (TSA) process in a fixed bed column. In this model, the conservation equations have been discretized using the finite volume method (FVM). The equations are solved simultaneously in MATLAB code according to the method of line (MOL) and the model results are validated by comparing with the experimental data.

کلیدواژه ها:

CO۲ adsorption ، Mathematical modeling ، Temperature swing adsorption ، Fixed-bed column ، Conservation laws