Evaluation of Fe-Ni Composite Oxygen Carrier in Coal Chemical Looping Gasification

Table 3

Surface area and porosity analysis of oxygen carrier before and after reaction.

NiO loading (wt%)	(m^2/g)		Pore volume (cc/g)		Pore size (nm)
	Fresh	Postreaction	Fresh	Postreaction	Fresh	Postreaction
0	2.45	7.03	0.01	0.02	6.19	4.27
5	2.51	8.77	0.01	0.02	9.53	5.53
10	2.85	9.50	0.01	0.03	10.41	6.97
15	2.99	10.71	0.01	0.02	13.13	7.34
20	2.92	13.22	0.01	0.02	11.02	6.87