Part I. Consider the operation of a blast furnace (Iron making). Suppose we have to deliver 150 tons/day of hot metal to the next operation (BOF, or Electric Furnace). Historical data indicates that your blast furnace recovers only 85% of the FE content of the incoming Ore. If during pouring and transportation about 5% of the hot metal is lost, calculate: a) Tons/day required for each input material b) Overall yield of the operation using FE input and output as a basis. NOTE :1. Input mix is composed of: Iron Ore= 4, Coke= 2, Air=2 , and Limestone=1, 2. Percent impurities: in Ore =30%, and in Hot Metal=8% PART II. What is the (specific) function(s) of each raw material in the reaction that takes place inside the Blast Furnace and results in production of iron. explain each in 2-3 lines. Part II: Why the 150 tons/day pig iron produced in blast furnace is transported to the BOF (Basic Oxygen Furnace.) unit.? In addition to the pig Iron, What other material we need to feed into BOF and what are the functions of each input material.in the BOF process
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Using the input mix composition, we can calculate the amount of each material needed as follows: Iron Ore = (150/0.85)/4 = 44.12 tons/day Coke = (150/0.85)/2 = 88.24 tons/day Air = (150/0.85)/2 = 88.24 tons/day Limestone = (150/0.85)/1 = 176.47 tons/day b) To Show moreā¦
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Iron ore is converted to pig iron in an industrial blast furnace. The pig iron, in turn, is converted to carbon steel by high-temperature oxidation. The blast furnace process takes place in a series of three reactions. $$\begin{array}{c}3 \mathrm{Fe}_{2} \mathrm{O}_{3}(s)+\mathrm{CO}(g) \stackrel{200^{\circ} \mathrm{C}}{\longrightarrow} 2 \mathrm{Fe}_{3}\mathrm{O}_{4}(\mathrm{~s})+\mathrm{CO}_{2}(g) \\\mathrm{Fe}_{3} \mathrm{O}_{4}(s)+\mathrm{CO}(g) \stackrel{700^{\circ} \mathrm{C}}{\longrightarrow} 3 \mathrm{FeO}(\mathrm{s})+\mathrm{CO}_{2}(g) \\\mathrm{FeO}(g)+\mathrm{CO}(g) \stackrel{1200^{\circ} \mathrm{C}}{\longrightarrow} \mathrm{Fe}(l)+\mathrm{CO}_{2}(g)\end{array} $$ Starting with $1.00 \mathrm{~kg}$ of iron(III) oxide and excess carbon monoxide gas, calculate: (a) the kilogram mass of iron(II) oxide produced (b) the kilogram mass of iron produced (c) the kilogram mass of iron produced assuming a $70.0 \%$ process yield
Blast furnace makes pig iron containing 3.6% C, 1.4% Si, and 95% Fe. The ore used contains 80% Fe2O3, 12% SiO2, and 8% Al2O3. The coke analysis shows the presence of 10% SiO2 and 90% C. The flux used is pure CaCO3. The exit gases contain 28% CO and 14% CO2. The coke ratio is 1000 kg/t pig iron. Flux is 400 kg/t pig iron. Calculate per tonne of pig iron: (a) the weight of the slag made, (b) the weight of the ore used, (c) the composition of the slag, and (d) the air required at NTP.
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Iron ore is reduced to pure iron by smelting, during which the iron (III) oxide in the ore reacts with carbon monoxide gas, like this: Fe2O3(s)+3CO(g) ā 2Fe(s)+3CO2(g) Suppose an engineer decides to study the rate of this reaction. She prepares four reaction vessels with 168.7 g of solid iron (III) oxide and 46.6 g of carbon monoxide gas each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. | vessel | volume | temperature | | :---: | :---: | :---: | | A | 4.0 L | 1100. Ā°C | | B | 4.0 L | 1000. Ā°C | | C | 2.0 L | 1100. Ā°C | | D | 2.0 L | 1200. Ā°C |
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