What is the meaning of non coking coal?

A non-coking coal is that coal which when heated in the absence of air leaves a coherent residue. This residue does not possess the physical and chemical properties of the coke and is not suitable for the manufacture of coke.

What is the definition of coking coal?

Coking coal refers to coal with a quality that allows the production of a coke suitable to support a blast furnace charge. Its gross calorific value is greater than 23 865kJ/kg (5 700 kcal/kg) on an ash-free but moist basis.

What is non coking grade?

The gradation of non-coking coal is based on Gross Calorific Value (GCV), the gradation of coking coal is based on ash content and for semi coking /weakly coking coal it is based on ash plus moisture content, as in vogue as per notification.

What is caking coal and coking coal?

When coal softens and solidifies into a Cake, under such heating conditions, it is CAKING or COKING Coal, but when it crumbles or forms a weakly coherent mass it is called NON-CAKING Coal. in the absence of air, with the production of COKE and the evolution of VOLATILE PRODUCTS.

Is coke obtained from coal?

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.

Where is non coking coal used?

Non Coking Coal does not have any caking properties and it is mainly used as thermal coal for power generation. It has a higher ash content and also used in industries like cement, fertilizer, glass, ceramic, paper, chemical and brick manufacturing.

What is coke vs 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.

What type of fuel is coke?

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. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.

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.

How is coke different from coal?

Coal is a lustrous, black fossil fuel that includes impurities, generates smoke, and generates less heat than coke when burned. Coke is a dingy, black coal waste that burns hotter and cleaner. Coke is a fuel made from mineral coal that has been calcined or dry distilled.

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 …

Why coke is preferred over 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.

What makes a coal a non coking coal?

A non – caking coal is that coal which when heated in the absence of air for e.g. as in the determination of VM, leaves a powdery residue. A non-caking coal is always a non- coking coal.

What are the different types of metallurgical coal?

There are several types of metallurgical coal: Hard coking coals (HCC) Medium coking coal. Semi-soft coking coal (SSCC) Pulverized coal injection (PCI) coal.

What kind of coal is used to make coke?

Metallurgical coal. Jump to navigation Jump to search. Metallurgical coal or coking coal is a grade of coal that can be used to produce good-quality coke.

Which is the best type of coal for injection?

1 Hard coking coals (HCC) 2 Medium coking coal (MCC) 3 Semi-soft coking coal (SSCC) 4 Pulverized coal for injection (PCI) coal