Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air—a destructive distillation process. … The unqualified term “coke” usually refers to the product derived from low-ash and low-sulphur bituminous coal by a process called coking.
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.
How is Coke different from 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.
How do you make coke with coal?
Coal Coke is created by cooking Coal in a Coke Oven. Even though coal coke is produced slowly in the coke oven (2.5 minutes per piece), it is a highly effective fuel as it essentially produces double the heat content of the Coal required to create it.
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.
What are 4 types of coal?
Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.
Is Coke a better fuel than coal?
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?
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.
What are the advantages of coke over coal?
(i) Coke produces more heat than an equal mass of coal. (ii) It produces ni smoke on burning and leaves no residue and as such does not cause air pollution. (iii) It is used as a reducing agent in the extraction of metals from their ores.
What is soft coke?
Soft coke :- Soft coke is obtained by high temperature carbanisation.It is used as a domestic fuel for making water gas and acetylene. Also it is obtained as a by-product in the manufacture of coal gas.
Why is Coke a cleaner fuel than coal?
Coke is a better fuel because coke produces more heat on burning as compared to coal. Coke has higher calorific value than coal. … Also when coke is burnt, smoke is not obtained whereas coal produces smoke on coal.
Which country has the best quality coal?
Experts told Fact Check that Australia’s coal is on average high quality as a result of its low moisture and ash content, and high carbon content, compared with other countries, particularly Indonesia, the largest coal exporter in the world.
Can we make steel without coal?
The key message is this: it is possible to create low-emissions steel, without metallurgical coal. … Not to mention what products we can produce from the steel – adding value in many more ways than just exporting ore – and taking advantage of an increasing consumer demand for low carbon products.
What is coke oven gas?
Coke oven gas (COG), sometimes simply called “coke gas,” is a by-product of the coke-making process, where volatile coal matter is generated as COG, leaving carbon intensive coke behind.
What are two 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.
How is coal formed?
Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years.