Pyrolysis
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Pyrolysis is a process involving the separation of covalent bonds in organic matter by thermal decomposition within an inert environment without oxygen.
Burning pieces of wood, showing various stages of pyrolysis, followed by oxidative combustion
Oak charcoal
Caramelized onions are slightly pyrolyzed.
This pizza is pyrolyzed, almost completely carbonized.
Coke (fuel)
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Coke is a grey, hard, and porous coal-based fuel with a high carbon content. It is made by heating coal or petroleum in the absence of air. Coke is an important industrial product, used mainly in the
Pyrolysis
…the chemical industry, for example, to produce ethylene, many forms of carbon, and other chemicals from petroleum, coal, and even wood, or to produce coke from coal. It is used also in the conversion of natural gas (primarily methane) into hydrogen gas and solid carbon char, recently introduced on an…
Raw coke
A coke oven at a smokeless fuel plant, Abercwmboi, Wales, 1976
The Monckton Coke Works at Royston, South Yorkshire, in operation discharging glowing coke from one of the bank of ovens on the left in 2013
Postcard depicting coke ovens and coal tipple in Fayette County, Pennsylvania