CO₂ Adsorption Capacity of Organic Alkali Sorbent CPEI from Polyethyleneimine

Table 1

Influences of various PEI/GA ratios used for the synthesis of CPEI on the total amine, primary amine, secondary amine, and tertiary amine values of CPEI.

	CPEI sorbents
	CPEI-1	CPEI-2	CPEI-3
PEI/GA ratio (g : g)	2 : 1	4 : 1	7 : 1
Total amines (mmol/g)
Primary amines (mmol/g)
Secondary amines (mmol/g)
Tertiary amines (mmol/g)