Consider the following statements : Coke is one of the materials of the charge added to blast furnace for the production of steel/iron. I
Consider the following statements :
Coke is one of the materials of the charge added to blast furnace for the production of steel/iron. Its function is to
1. act as the reducing agent
2. remove silica associated with the iron ore
3. function as fuel; to supply heat
4. act as an oxidizing agent Of these statements
(a) 1 and 2 are correct
(b) 2 and 4 are correct
(c) 1 and 3 are correct
(d) 3 and 4 are correct
1 Answers
(c) Coke is added in blast furnance along with iron ore in a blast furnace. Coke being derived from fossil fuel by destructive distillation. Thus it contains higher percentage of carbon and have high calorific value that"s why it functions as a fuel to supply heat. Coke also acts as a reducing agent and reduce metal(iron) oxide to metal.
Chemical equations involved in process are following:
2C(s) + O2(g) → 2CO(g)
FeO(s) + CO(g) → Fe(s) + CO2(g)
Fe2O3 + 3CO(g) → 2Fe(s) + 3CO2(g)