Figure 5

(a) CO2 adsorption isotherms at 0 °C, (b) CO2 adsorption isotherms at 25 °C, (c) N2 adsorption isotherms at 25 °C in the pressure range of 0–1 bar, (d,e) CO2 adsorption isotherms in the pressure ranges of 0–0.15 bar (d) and 0.6–1 bar (e) at 25 °C, (f) Regenerability, working capacity at 25 °C, and (g) CO2/N2 adsorption selectivity, purity at 25 °C (as per flue gas condition).