Char (chemistry)
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Look up char in Wiktionary, the free dictionary.
Char is the solid material that remains after light gases (e.g. coal gas) and tar have been driven out or released from a carbonaceous material during the initial stage of combustion, which is known as carbonization, charring, devolatilization or pyrolysis.
Further stages of efficient combustion (with or without char deposits) are known as
water gas shift reaction
is reached.
See also
| Coal types by grade (lowest to highest) |  | |
|---|---|---|
| Coal combustion | ||
| Coal mining | ||
Note: [1] Peat is considered a precursor to coal. Graphite is only technically considered a coal type. | ||
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