Who first developed the process of carbon dating

In practice, it is not possible to achieve a completely oxygen-free atmosphere.

Because some oxygen is present in any pyrolysis system, a small amount of oxidation occurs.

In a wood fire, the visible flames are not due to combustion of the wood itself, but rather of the gases released by its pyrolysis, whereas the flame-less burning of a solid, called smouldering, is the combustion of the solid residue (char or charcoal) left behind by pyrolysis.

Thus, the pyrolysis of common materials like wood, plastic, and clothing is extremely important for fire safety and firefighting. It should not be confused with hydrothermal reactions such as hydrothermal gasification, hydrothermal liquidation, and hydrothermal carbonization, which occur in aqueous environments because the temperatures and reaction pathways differ, with ionic reactions favored in aqueous reactions and radical reactions favored in the absence of water.

Pyrolysis occurs whenever food is exposed to high enough temperatures in a dry environment, such as roasting, baking, toasting, or grilling.