Blast furnace calorific value is 780 Kcal/hr
The formula to calculate the calorific value of blast furnace gas is: Calorific value (MJ/m³) = 0.313 x %CO + 0.313 x %H2 + 0.093 x %CH4. In this formula, %CO represents the percentage of carbon monoxide, %H2 represents the percentage of hydrogen, and %CH4 represents the percentage of methane in the blast furnace gas.
its used a fuel , but has less calorific value as the carbon monoxide percentage is less which is the main combustible gas in the b.f gas. its used in heating the blast of hot air in the blast furnance itself and also can be used in rolling mill, sinter plant, and many more where you need heating
It is mostly carbon monoxide and nitrogen gases which has some heating value. So it is typically recovered and mixed with natural gas, &/or coke oven gas and used in boilers for steam or other steel heating furnaces for further processing of steel.
The water gas has a high calorific value because it produces immense heat during its combustion.
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Hydrogen
Blast furnace waste gas is mainly nitrogen because nitrogen makes up about 78% of the atmosphere and is used as the primary gas for the blast furnace process. During the process, the injected air reacts with the fuel and iron ore to form nitrogen-rich waste gas.
8600 kcal/m3 is the calorific value of CNG (Compressed Natural Gas) Submitted By Sanjay Jangid
calorific value of producer gas is 05 MJ m− 3 Reference http://www.kayelaby.npl.co.uk/chemistry/3_11/3_11_4.html Thanks
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It removes the heavy dust particles coming along with the BF(Blast Furnace) gas by reducing the velocity of the gas so that the dust particles are left as the gas lost it's ability to carry the dust particles
The calorific value of petrol/gasoline (and also its gas but it might be slightly different) is apprx. 50 kilojoules/gram of complete combustion.