What does the Coke do in a blast furnace?
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.
Why is Coke added to the blast furnace in the manufacture of iron?
The preheated air reacts vigorously with the preheated coke, resulting in both the formation of the reducing gas (carbon monoxide) that rises through the furnace, and a very high temperature of about 1,650° C (3,000° F) that produces the liquid iron and slag.
Which is a better fuel coal or coke?
Coke is a better fuel than coal because; -Coke produces more heat on burning than coal. When equal masses of coke and coal are burnt, coke produces more heat. -When coke is burnt smoke is not obtained.
Why Coke is not used as fuel?
Answer: because fuel has different properties than coke as fuel can help a car move and coke can’t do do that as it does not have the chemicals to complete that task …
What is soft coke?
noun. A black, sparse variety of coke produced by the carbonization of highly volatile coal at a high temperature, typically used in open fires and closed appliances like stoves.
What is the difference between hard coke and soft coke?
Hard coke :- Hard coke is obtained by high temperature carbanisation.It is used in metallurgy as a metallurgical coke. Soft coke :- Soft coke is obtained by high temperature carbanisation.It is used as a domestic fuel for making water gas and acetylene.
What are the uses of coke?
Uses of Coke:
- The most common use of coke is as a fuel for stoves, furnaces and blacksmithing. It is sometimes preferred over coal because burning coke produces very little smoke.
- It is also used to produce iron in a blast furnace.
- Coke is used to manufacture steel and many other materials.
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. 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 are characteristics of coke?
The characteristics of coke are as follows: It is a tough, porous and black substance. It is an almost pure form of carbon. It gives little or no smoke….The uses of coke are as follows:
- It was used for domestic heating in the past.
- It is used for the extraction of metals.
- It is used in the manufacture of steel.
What is coke pushing?
Thermal distillation must be complete before the coke must be removed from the oven, by a process called “pushing.” If coke is pushed from ovens before thermal distillation is complete, it is called a “green push” that produces “green coke”, which results in higher benzene and HAP emissions.
How did old coke ovens work?
In a process known as “coking,” coal was shoveled into beehive-shaped coke ovens insulated with a layer of dirt and then ignited. After laborers sealed the doors with brick and mud, the coal was left burning under low-oxygen conditions for two or three days and could reach temperatures of nearly 2000C (or 3600F).
How are Pepsi made?
In the United States, Pepsi is made with carbonated water, high fructose corn syrup, caramel color, sugar, phosphoric acid, caffeine, citric acid, and natural flavors. Pepsi has 10 more calories and two more grams of sugar and carbohydrates than Coca-Cola.
What is coke used for in steel?
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.
How is coal made out of steel?
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.
Why is coca cola called Coke?
Use of stimulants in formula When launched, Coca-Cola’s two key ingredients were cocaine and caffeine. The cocaine was derived from the coca leaf and the caffeine from kola nut (also spelled “cola nut” at the time), leading to the name Coca-Cola.
Do you need coke to make steel?
Specifically, the coal was converted into “coke” by heating it in oxygen-starved conditions to drive off embodied water and volatile organic chemicals. While an increasing amount of steel is being recycled, there is currently no technology to make steel at scale without using coal.
What does a coke plant make?
During the distillation process, a large amount of gas and smoke is generated, which, after purification, creates coke oven gas, and other by-products such as ammonia, tar, sulfur, naphthalene, and benzol. The creation of coke and the purification of gas are performed completely automated.