CO₂ Adsorption Capacity of Organic Alkali Sorbent CPEI from Polyethyleneimine

Figure 10

Reusability of the CPEI-3 sorbent for CO₂ capture determined by TGA. At the end of each run, the sorbent was regenerated by purging with N₂ at 100°C for about 20 min, until no CO₂ was detected in the exhaust gas.