K factor (crude oil refining)
The K factor or characterization factor is defined from Rankine boiling temperature °R=1.8Tb[k] and relative to water density ρ at 60°F:
K(UOP) =
![{\displaystyle {\sqrt[{3}]{1.8Tb}}/\rho }](../I/d1b8f69a82faa3736e7efd4c318d2c982c214093.svg)
The K factor is a systematic way of classifying a crude oil according to its paraffinic, naphthenic, intermediate or aromatic nature. 12.5 or higher indicate a crude oil of predominantly paraffinic constituents, while 10 or lower indicate a crude of more aromatic nature. The K(UOP) is also referred to as the UOP K factor or just UOPK.[1]
See also
References
- James G. Speight (2007). The Chemistry And Technology of Petroleum (4th ed.). CRC Press. p. 40. ISBN 978-0-8493-9067-8.
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