The destructive distillation of coal is the process of heating coal in the absence of air.
Carbon, hydrogen, oxygen, nitrogen, and sulphur are among the elements found in coal.
When coal is burned in the absence of air, it produces a variety of products.
Products formed by destructive distillation of Coal
Coke: It has a carbon content of 98 percent. It is the purest kind of coal, porous, rough, and black. It's a good fuel that burns cleanly, just like charcoal.
Liquid coal tar: Coal tar is made up of a variety of carbon compounds. It's a viscous, black liquid with a foul odour. Many chemical molecules are produced by fractional distilling coal tar, including pigments, explosives, paints, synthetic fibres, medicines, and insecticides.
Coal gas: Itis a mixture of hydrogen, methane, and carbon monoxide that comes from coal. Because the gases in coal gas are flammable, it makes a great fuel.