An Experimental and Kinetic Study of the Sorption of Carbon Dioxide onto Amine-Treated Oil Fly Ash

Table 2

Elemental analysis of fly ash by EDX.

Element	Raw OFA			Treated OFA, dried at 105°C
	Spot 1	Spot 2	Spot 3	Spot 1	Spot 2	Spot 3
C	92.98	92.72	92.43	93.3	93.38	93.56
O	—	—	—	—	—	—
S	5.48	5.48	5.41	4.23	4.32	4.31
Si	—	0.14	0.2	0.3	0.19	0.21
Na	0.13	0.14	0.15	—	—	—
Mg	0.23	0.18	0.26	0.63	0.61	0.57
Ca	0.26	0.2	0.37	0.27	0.25	0.25
V	0.91	0.88	0.83	0.65	0.63	0.56
Fe	—	0.28	0.36	0.26	0.27	0.24