Effects of the heating source on the regeneration performance of different adsorbents under post-combustion carbon capture cyclic operations. A comparative analysis

This work presents a comparative study of microwave and conventional (conductive) heating for adsorbent regeneration. A binary gas mixture representative pre-dried flue from coal-fired power plants (15% v/v CO2 in N2) was passed through rotatory fixed-bed adsorption column filled with zeolite molecular sieve (13X) an activated carbon (Norit R2030CO2). The impact the two regeneration methods on both textural properties capture performance (CO2 uptake capacity, efficiency, rate regeneration) were assessed compared after consecutive adsorption/desorption cycles. Overall, Norit R2030CO2 maintained stable capacity efficiency but slightly better latter. Additionally, consumption per unit mass adsorbate removed reduced by 18.69 17.76% respectively to In case 13X, found be relatively drop first cycle modes, whereas requirement higher than NoritR2030CO2 showed maximum desorption when regenerated conductive heating. Contrarily, is as opposed However, data indicated bigger adsorbents later stages process (i.e. min 16th 18th 13X until completion). breakthrough time (tb) unaffected cyclic operation or methods, this value varied over latter observation indicates that requires either longer times temperatures achieve full R2030CO2. It can concluded microwave-assisted presented slight advantages delivering more steady under test conditions employed here exhibited indifference.