Coke Oven-Uses, Advantage and Benefits of Coal Technology

Coke Oven-Uses, Advantage and Benefits of Coal Technology

Coke oven is a vital necessity when it comes to producing coke which is further derived from coal. Bituminous coal is later mixed and heated at a temperature that can range between a degree of 1,000 to 2,000 Celsius. This temperature exists within the vacuum prevailing inside the coke oven that gives out the resultant by-product called coke. Coke oven as a device is an indispensable part of the whole process of making coke. Coke is nothing but a solid form of combusted material in the carbonaceous form. It consists of a small amount of ash and sulfur.

Coke can further be used as a fuel substitute or even as a reducing agent in smelting iron ore in the blast furnace. It is among the three prime constituents used in the production of iron which is thereafter used to manufacture steel by combining it with limestone alongside iron ore. The waste gases that come out or are emitted from the coke oven during the whole process involving coal technology can later be utilized as fuel. The coal can again be produced through the process of heating under a certain restricted temperature. Superior quality coke is derived only in a temperature devoid of any oxygen.

Coke ovens are airless and designed to facilitate the whole coke-making process using coal technology. They are arranged in a series of batteries and placed strategically between the heated walls. By doing so, one can increase the production of coke and thereby the efficiency of the whole coke-making process. Coke is hereafter heated in the coke oven due to the consistent high temperature existing which further helps in separating coal gas, coal water and tar from coal. Coal gas and coal water is later combined and fused together along with carbon and the residual remains of coal. 

The hard solid residue that is derived at the end of the whole process is usually referred to as coke. Again the coal which is used for making coke is integral to the entire process. Coal can further be selected on the basis of ash, sulfur and tar for prominent characteristics like volatility or plasticity. The volatile nature of coal further helps it in producing coal or greater and higher quantity. The more the volatility the more would be the number of byproducts. Again too much volatility might work negatively by making the quality of coke too porous.

This process of producing coal through coke ovens is referred to as coal technology. Those emission gases which come out of such ovens are usually considered harmful for human life and have been identified as carcinogen. This process of converting coal to coke is done by blending carbon monoxide along with nitrogen. Coke is produced by passing air through such oven. Coke is also an important constituent for the production of water gas and others. The first instance of using coke as a fuel for the purpose of cooking was started by the Chinese. It also served as a great fuel alternative in those areas where there is dearth of trees and is smoke free at the same time.

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