The modern processes are sophisticated and require careful engineering to produce the most valuable possible products from the available feedstocks. Applications Destructive distillation of wood produces hundreds of compounds including tar, terpenes, turpentine and methanol together with a solid residue of charcoal. Destructive distillation of a tonne of coal can produce 700 kg of coke, 100 liters of liquor ammonia, 50 liters of coal tar and 400 m3 of coal gas. Destructive distillation is an increasingly promising method for recycling monomers derived from waste polymers. Destructive distillation of natural rubber resulted in the discovery of isoprene which led to the creation of synthetic rubbers such as neoprene. See also Dry distillation Pyrolysis Thermolysis Cracking (chemistry) References External links What is destructive distillation ? Distillation Pyrolysis