Term: delayed coke
https://doi.org/10.1351/goldbook.D01577

Definition:
A commonly used term for a primary carbonization product (green or raw coke) from high-boiling hydrocarbon fractions (heavy residues of petroleum or coal processing) produced by the delayed coking process.

Note: Delayed @C01142-1@ has, with only a few exceptions, a better graphitizability than @C01142-2@ produced by other @C01144@ processes even if the same feedstock is used. Delayed @C01142-1@ contains a @M03722@ of volatile matter between 4 and 15 wt% which can be released during heat treatment.

Related Terms:
1) coke (http://doi.org/10.1351/goldbook.C01142-1).
2) coking (http://doi.org/10.1351/goldbook.C01144).
3) mass fraction (http://doi.org/10.1351/goldbook.M03722).
4) cokes (http://doi.org/10.1351/goldbook.C01142-2).
5) carbonization (http://doi.org/10.1351/goldbook.C00840).
6) green (http://doi.org/10.1351/goldbook.G02697).
7) raw coke (http://doi.org/10.1351/goldbook.R05158).
8) delayed coking process (http://doi.org/10.1351/goldbook.D01578).

Source: PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 486 (https://doi.org/10.1351/pac199567030473)

Citation: 'delayed coke' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.D01577

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