Synthesis of cobalt-silicon molecular sieve with excellent CO2/N2 adsorption selectivity for dynamic CO2 capture

Green synthesis of polypyrrole for CO2 capture from humid flue gases

“…The CO 2 breakthrough point (180, 112, and 98 s at 303, 318, and 333 K) and saturation point moved ahead with the increasing operation temperature, which corresponded to a decrease of the adsorption amount with increasing the temperature. The dynamic adsorption capacities were calculated by the integration method 73,74 to be 5.51, 3.98, and 3.04 cm 3 g −1 at 303, 318, and 333 K, respectively, which were around 85% of the static adsorption amount at a CO 2 partial pressure of 0.15 bar. When the dynamic adsorption capacity was measured, some adsorption sites of the adsorbent could not be saturated with the continuously flowing adsorbate gas, where the static adsorption represents the saturated adsorption capacity, thus the dynamic adsorption capacity was lower than the static adsorption capacity.…”