Term: green coke
https://doi.org/10.1351/goldbook.G02697

Definition:
Green coke (raw coke) is the primary solid carbonization product from high boiling hydrocarbon fractions obtained at temperatures below 900 K. It contains a fraction of matter that can be released as volatiles during subsequent heat treatment at temperatures up to approximately 1600 K. This mass fraction, the so-called volatile matter, is in the case of green coke between 4 and 15 wt.%, but it depends also on the heating rate.

Note: @R05158-1@ is an equivalent term to green @C01142@ although it is now less frequently used. The so-called volatile matter of green @C01142@ depends on temperature and time of @C01144@, but also on the method for its determination.

Related Terms:
1) raw coke (http://doi.org/10.1351/goldbook.R05158-1).
2) coke (http://doi.org/10.1351/goldbook.C01142).
3) coking (http://doi.org/10.1351/goldbook.C01144).
4) raw coke (http://doi.org/10.1351/goldbook.R05158).
5) carbonization (http://doi.org/10.1351/goldbook.C00840).
6) mass fraction (http://doi.org/10.1351/goldbook.M03722).

Source: PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 494 (https://doi.org/10.1351/pac199567030473)

Citation: 'green 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.G02697

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