Coke is used as a fuel and a reducing agent in melting iron ore. It is produced by baking coal until it becomes carbon by burning off impurities without burning up the coal itself. When coke is consumed it generates intense heat but little smoke, making it ideal for smelting iron and steel.
Can steel be made without Coke?
Now, nearly all new steel globally is produced using iron oxide and coking coal. … While an increasing amount of steel is being recycled, there is currently no technology to make steel at scale without using coal.
What is the difference between coal and coke?
What is the difference between coal and coke fuel? Coal is a shiny, black fossil fuel that contains impurities, emits smoke when burned, and produces less heat than coke. Coke is a dull, black byproduct of coal that burns hotter and cleaner.
What is a coke oven used for?
Generally, the coke ovens found in the Cumberland region were used to convert the bituminous coal mined in the local mountains into industrial coke, a relatively clean-burning fuel used in the smelting of iron ore.
How much coal does it take to make coke?
Approximately 1.5 metric tons of metallurgical coal are required to produce 1 metric ton (1,000 kilograms) of coke. A blast furnace is fed with coke, iron ore and fluxes, and hot air is blown into the mixture.
Why Coke is not used as a fuel?
The term means a product similar to coal and mined the same way. Coal is cheaper and that is why it is used more often. … Coke is cleaner and other methods should be looked into before coal and oil run out.
Why is Coke used instead of coal?
Since smoke-producing constituents are driven off during the coking of coal, coke forms a desirable fuel for stoves and furnaces in which conditions are not suitable for the complete burning of bituminous coal itself. Coke may be combusted producing little or no smoke, while bituminous coal would produce much smoke.
Which is better coke or coal?
Coke is a better fuel than coal because; -Coke produces more heat on burning than coal. -Coke has a higher calorific value than coal. When equal masses of coke and coal are burnt, coke produces more heat.
What is Coke in coal?
By distilling bituminous coal in retorts to obtain gas for illumination, or by burning it in kilns or pits, the residue left behind is called coke, which is simply coal charcoal, and is nearly pure carbon.
Is Coke a clean fuel?
Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. The carbon monoxide produced by its combustion reduces iron oxide (hematite) to the iron product. Although coke is more expensive than coal, it can be used in households as a clean fuel, relatively free of smoke and impurities.
What is hard coke?
Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. … The carbon monoxide produced by its combustion reduces iron oxide (hematite) in the production of the iron product.
What is an old coke oven?
The coke ovens were used to convert the coal mined in the local area into industrial coke, a relatively clean-burning fuel used in the smelting of iron ore. … In a process known as “coking,” coal was shoveled into an insolated beehive-shaped and ignited.
What is coke oven in steel plant?
When coking coal is heated in absence of air, a series of physical and chemical changes take place with the evolution of gases and vapours, and the solid residue left behind is called coke. Conventional cokemaking is done in a coke oven battery of ovens sandwiched between heating walls.
What is Coke made of?
Carbonated water – Approximately 90% of Coca‑Cola is water. The carbonated part is purified carbon dioxide, which gives the drink its “bubbles” or “fizz”. Sugar – Coca‑Cola Classic’s sweet taste (and also some of its mouthfeel) comes from sugar. Coca‑Cola Zero Sugar and Diet Coke are sugar free.
Why is coal used in steel production?
Coking coal is a key raw material in steel production. As iron occurs only as iron oxides in the earth’s crust, the ores must be converted, or ‘reduced’, using carbon. The primary source of this carbon is coking coal. … Coke reduces iron ore to molten iron saturated with carbon, called hot metal.
What type of coal is used for steel?