Coke is produced by heating coal at high temperatures , for long periods of time. This heating is called “thermal distillation” or “pyrolysis.” In order to produce coke that will be used in blast furnaces, coal is usually thermally distilled for 15 to 18 hours, but the process can take up to 36 hours.
Does coke burn hotter than coal?
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 .
How do you make homemade coke fuel?
Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. Coke from coal is grey, hard, and porous and has a heating value of 24.8 million Btu per ton.
How do you turn coal to coke?
Coal is crushed and blended prior to being charged in a coke oven . A larry car charges the individual oven with the blended coal. In the coke oven, the coal is heated to 1,800°F for up to 18 hours. During that time, the volatiles of the coal are driven into the offgas and a pure carbon form called “coke” remains.
How is furnace coke made?
Coke is produced by heating coal at high temperatures , for long periods of time. This heating is called “thermal distillation” or “pyrolysis.” In order to produce coke that will be used in blast furnaces, coal is usually thermally distilled for 15 to 18 hours, but the process can take up to 36 hours.
Why coke is not used as a fuel?
The use of coke as a fuel was pioneered in 17th century England in response to the ever-growing problem of European deforestation . Wood was becoming increasingly scarce and expensive. Coal’s fumes, particularly smoke and sulphur compounds, disqualified it from many applications, including cooking and iron smelting.
Why is coke used instead of coal?
The single most important factor is strength ( mechanical compressive ); coal is heated to make coke, the resulting coke is stronger than the original coal. Also, coke helps to make the charge of iron oxides and limestone more porous to permit gas flow up and droplets of liquid iron and slag down.
Is coke a fossil fuel?
Coal gas is formed by a mixture of various gases like methane, hydrogen, volatile hydrocarbons and carbon monoxide which are produced after destructive distillation of coal. ... As coke and coal gas are not a fossil fuel .
Which is better coal or coke?
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 the difference between coke and coal?
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.
Why coke is used in blast furnace not coal?
What is coke? 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.
Which coal is used for making coke?
Metallurgical coal, also known as coking coal , is used to produce coke, the primary source of carbon used in steelmaking. Metallurgical coal differs from thermal coal, which is used for energy and heating, by its carbon content and its coking ability.
Is coke is a clean fuel?
Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. ... Although coke is more expensive than coal, it can be used in households as a clean fuel , relatively free of smoke and impurities.
Is coke a smokeless fuel?
Smokeless fuels are usually solid fossil fuels , such as: anthracite, coke, and charcoal. Unlike bituminous coals they contain little impurities and so don’t produce smoke when burned. Wood is not a smokeless fuel.
What is coke formula?
1 oz (28 g) caffeine citrate. 3 oz (85 g) citric acid. 1 US fl oz (30 ml) vanilla extract. 1 US qt (946 ml) lime juice.
