Modeling and Simulation of a Thermal Swing Adsorption Process for CO2 Capture and Recovery

M. Lei, C. Vallieres, G. Grevillot, and M.A. Latifi
LRGP - CNRS - ENSIC, Nancy, France

The present study deals with a twodimensional modeling and simulation of a thermal swing adsorption (TSA) process used for the capture of CO2 from CO2/N2 mixture. The models are described by partial differential equations (PDEs) including conservation equations, models for equation of state, equilibrium, thermodynamic and transport properties. The resulting models involve different unknown parameters to be estimated from the available experimental measurements. An estimability analysis was carried out in order to determine which parameters are able to be estimated from experimental results. The most estimable parameters are then identified and the less estimable parameters are fixed from the literature. The resulting models are implemented and solved using the software COMSOL Multiphysics. The results obtained show that the model predictions fit quite well with the experimental results.