Electrical Swing Adsorption Using New Mixed Matrix Adsorbents for CO2 Capture and Recovery: Experiments and Modeling

A new mixed matrix material composed of polymer and activated carbon was prepared around metallic rods which could then be directly heated using the Joule effect. From a capacity point of view, a specific method was used during the synthesis step to maintain the original capacity of activated carbon. A cell containing 39 rods in parallel was designed and used for CO2 breakthrough curve measurements. The regeneration step was carried out using direct heating. Axial dispersion and mass transfer coefficients, involved in the one-dimensional and isothermal model developed, were used as adjustable parameters to represent the experimental results properly. The developed models were implemented and solved using Comsol Multiphysics software. The cell containing the rods was found to behave in the same way as a packed column with appropriate porosity and isotherms, and the present paper will also propose other potential uses for this original configuration.