1/2CO2(g) + 1/2C(s) → CO(g) 换成CO2(g) + C(s) →2 CO(g)
CO(g) + 1/3Fe2O3(s) → 2/3Fe(s) + CO2(g)换成2CO(g) + 2/3Fe2O3(s) → 4/3Fe(s) + 2CO2(g)
以下三式相加
C (s) + O2 (g) → CO2 (g)
CO2(g) + C(s) →2 CO(g)
2CO(g) + 2/3Fe2O3(s) → 4/3Fe(s) + 2CO2(g)
得到
2C (s) + O2 (g) + 2/3Fe2O3(s) → 4/3Fe(s) + 2CO2(g)
C+1/2O2(g) + 1/3Fe2O3(s) → 2/3Fe(s) + CO2(g)
3C(s)+2Fe2O3(s)==4Fe(s)+3CO2(g)