Q46
In an ideal blast furnace, the input and output are as follows: Input: Ore, Pure Fe2O3, no gaunge : 1357kg/THM∗ Coke, Pure C, no ash : 400 kg/THM Blast air, dry : O2 : 293 kg/HTM, N2 : 964 KG/THM Flux : nil Output : Hot metal : 5wt% C, rest iron Slag : nil Top gas : CO, CO2, N2 ∗ THM refers ton of hot metal (liquid pig iron) ; Atomic weights: C-12, O-16, Fe-56 The amount of oxygen in CO & CO2 leaving with the top gas is . . . . . . . . kg.
A.
293
B.
407
C.
700
AnswerD.
1050
Answer: Option C
Solution
Answer: Option C
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