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The distillation of wood Charcoal is a useful by-product of wood obtained by the process of carbonization. Other valuable products can be obtained by treating wood in different ways. Destructive distillation (also known as pyrolysis or wood distillation) is similar to carbonization except that the wood is heated in a closed container and the gases and liquids given off are collected. Some of the gases can then be condensed to provide a range of useful chemicals; those that do not condense can be used as a gaseous fuel f

What is charcoal? Charcoal is the solid residue remaining when wood is "carbonised" or "pyrolysed" under controlled conditions in a closed space such as a charcoal kiln. Control is exercised over the entry of air during the pyrolysis or carbonisation process so that the wood does not merely burn away to ashes, as in a conventional fire, b

Figure 1 Pile Wood in the Kiln.