Coal is a blackish brown combustible sedimentary rock which appears in the various rock layers referred to as coal beds or seams. Those coal which are hard in form are called anthracite and at times are also known as metamorphic rock due to the exposure in high temperature and pressure. It is mainly composed of chief constituents like hydrogen, sulfur and other essential gases like oxygen or nitrogen. Coal is also used as a fossil fuel for producing electricity and various other industrial purposes. The process in which conversion of coal to coke takes place is referred to as coal carbonization.
Coke is nothing but a carbonaceous material solid in nature which is again derived through the process of destructive distillation of low ash, low-sulfur and bituminous coal. The transformation of coal to coke is better known as the coke-making process. Those cokes which are formed as a result of the conversion from coal to coke usually appear as grey, hard and porous. There are some instances of coke which are formed naturally while there are others which are formed through the intervention of man. It was the Chinese who first started using coke as a fuel for cooking and heating things.
Coal carbonization is the process in which raw materials in the natural form are converted into various forms of carbon. The final residue that is derived from carbon is only after applying the process of pyrolysis and destruction of organic raw materials through the process of distillation. Equal amount of such carbonaceous compound can further be extracted through the production of carbon elements and other gaseous liquids and products. It is through this process which enables coke production which can later be used in industries which specialize in making iron and steel. Coke is the resultant output that comes out of converting coal to coke.
At the same time, coke can serve as a source of fuel for domestic use and purpose which is not just smoke-free but also Eco-friendly at the same time. Coal carbonization is one such process which is used to derive a wide range of various other forms of metallurgical coke. Most of the bituminous coal is formed naturally and those which can be used in the coking process are priced much higher due to their rare availability. Other forms of coke which are potential for the sake of coking are usually of poor quality. Coke oven plays a major role in the whole process of carbonization.
It is the coke oven which is specially designed to facilitate the entire coke-making process. It is in these ovens where coal is blended and combined at a temperature that can vary between a degree of 1,000 to 2,000 Celsius. The temperature inside the coke oven is such that to ensure and facilitate the production of the by-product better known as coke. Such ovens or device for making coke are can integral part of the whole coke-making process. To be more precise, the final output that is coke is a solid combustible, carbonaceous form or material. One can also find a trace of ash and sulfur in it.