3D-printed activated carbon for post-combustion CO2 capture

The applicability of 3D-printed activated carbons for their use to CO2 capture in post-combustion streams and the influence activation conditions on uptake N2 selectivity were studied. For two monoliths with same open cellular foam geometry but low high burnoff during activation, a series fixed-bed breakthrough adsorption experiments under typical conditions, wide range temperature (313 373 K), partial pressure up 120 kPa carried out. It is shown that higher 3D printed carbon enhances capacity due increased specific surface area sorption uptakes can reach 3.17 mol/kg at 313 K kPa. Nevertheless, lower time monolith 1 leads over N2, 18 against 10 2, considering binary interaction mixture CO2/N2 (15/85 vol%) K. single multicomponent equilibrium conveniently described through dual-site Langmuir isotherm model, while curves simulated using dynamic linear driving force model. Working capacities lead best results, varying 0.15–1.1 regeneration 300–390 Finally, consecutive adsorption-desorption show excellent stability regenerability both whole study underpins potential these materials streams.