Table 1. Δ_rG_m of the Potential Reactions that Occurred at 800 °C during the Steam Activation of the Modified AC.

reactions	ΔrGm (kJ/mol)	eqs
H2O(g) + C(s) = H2(g) + CO(g)	–18.063	1
2MnO2(s) + C(s) = Mn2O3(s) + CO(g)	–243.421	2
4MnO2(s) + C(s) = 2Mn2O3(s) + CO2(g)	–469.615	3
3MnO2(s) + 2C(s) = Mn3O4(s) + 2CO(g)	–454.310	4
3MnO2(s) + C(s) = Mn3O4(s) + CO2(g)	–437.082	5
MnO2(s) + C(s) = MnO(s) + CO (g)	–188.583	6
2MnO2(s) + C(s) = 2MnO(s) + CO2(g)	–359.940	7
MnO2(s) + H2(g) = Mn2O3(s) + H2O(g)	–225.358	8
MnO2(s) + H2(g) = Mn3O4(s) + H2O(g)	–418.183	9
MnO2(s) + H2(g) = MnO(s) + H2O(g)	–170.520	10
MnO2(s) + CO(g) = Mn2O3(s)+ CO2(g)	–226.193	11
MnO2(s) + CO(g) = Mn3O4(s) + CO2(g)	–419.854	12
MnO2(s) + CO(g) = MnO(s) + CO2(g)	–171.356	13
3Fe2O3(s) + C(s) = 2Fe3O4(s) + CO(g)	–109.501	14
6Fe2O3(s) + C(s) = 4Fe3O4(s) + CO2(g)	–201.776	15
Fe2O3(s) + C(s) = 2FeO(s) + CO(g)	–51.900	16
2Fe2O3(s) + C(s) = 4FeO(s) + CO2(g)	–86.574	17
Fe3O4(s) + C(s) = 3FeO(s) + CO(g)	–23.100	18
2Fe3O4(s) + C(s) = 6FeO(s) + CO2(g)	–28.973	19
Fe3O4(s) + 4C = Fe(s) + 4CO(g)	–57.583	20
Fe3O4(s) + 2C = 3Fe(s) + 2CO2(g)	–23.128	21
FeO(s) + C(s) = Fe(s) + CO(g)	–560.530	22
3Fe2O3 + H2(g) = 2Fe3O4 + H2O(g)	–91.438	23
Fe2O3(s) + H2(g) = 2FeO(s) + H2O(g)	–33.837	24
Fe2O3(s) + 3H2(g) = 2Fe(s) + 3H2O(g)	–20.700	25
Fe3O4(s) + H2(g) = 3FeO + H2O(g)	–5.037	26
3Fe2O3(s) + CO (g) = 2Fe3O4(s) + CO2(g)	–92.274	27
Fe2O3(s)+CO(g) = 2FeO(s)+CO2(g)	–34.673	28
Fe3O4(s) + CO(g) = 3FeO(s) + CO2(g)	–5.872	29
Fe2O3(s) + 3CO(g) = 2Fe(s) + 3CO2(g)	–23.206	30