Assertion: carbon black | /r/HasProperty | petroleum coke
Facets:
Source sentences:
text: It is more properly restricted to the product of the gas-phase combustion process[citation needed] but is commonly extended to include the residual pyrolysed fuel particles such as coal, cenospheres, charred wood, and petroleum coke that may become airborne during pyrolysis and that are more properly identified as cokes or char.