How do we obtain coke from coal?
Coke is obtained by destructive distillation of charcoal or coal in the furnace Destructive distillation is the chemical process involving the decomposition of coal or charcoal by heating to a high temperature in the absence of air or in the presence of limited amounts of oxygen.
How is coke formed Class 8?
Coke is formed by destructive distillation of coal. It is the process of heating coal in the absence of oxygen to obtain useful products. The immediate product black residue collected is coke along with this hot vapours which produces coal gas , liquor ammonia and coal tar on further destructive distillation.
Is coal used to make coke?
Coking coal, also known as metallurgical coal, is used to create coke, one of the key irreplaceable inputs for the production of steel. There are many varieties of coal in the world, ranging from brown coal or lignite to anthracite.
What is difference between coke and 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.
How is coal tar formed?
Coal tar is obtained by cooling the gas that is formed during the destructive distillation of coal to approximately ambient temperature. It is a black, viscous liquid composed primarily of a complex mixture of condensed-ring aromatic hydrocarbons.
What is a coal tar class 8?
Coal tar. It is a black, thick liquid with unpleasant smell. It is a mixture of about 200 substances. … Interestingly, naphthalene balls used to repel moths and other insects are also obtained from coal tar. These days, bitumen, a petroleum product, is used in place of coal-tar for metalling the roads.
What is coke Class 8 used for?
Uses: Coke is used in the manufacture of steel and in the extraction of many metals. Q. 13.