Does the Watson characteristic factor (K) change with the phase state of petroleum components?
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For example, fixed petroleum components have their Watson characteristic factor (K), but if the temperature is increased enough to turn them all into gases, does the Watson characteristic factor (K) change? Is K still meaningful in the gas phase? I’m not sure; I hope experienced colleagues can provide some guidance.
Characteristic factors characterize the physical properties of crude oil, and are related to aspects such as its density and average boiling point. If crude oil were to be completely vaporized (which is almost impossible), its physical properties would not change under normal temperature and pressure; therefore, the K value remains unchanged.