What is the typical temperature used for crude oil distillation range testing?
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Help: What should the temperature of the liquid phase be, and what should the temperature of the gas phase be?
Here, we do not determine the boiling range of crude oil; instead, we use actual boiling point distillation to evaluate it. The fractions with a boiling point below 200°C are distilled at atmospheric pressure; to prevent thermal cracking of the crude oil, the temperature at the bottom of the reactor is kept below 310°C. The remaining fraction is subjected to vacuum distillation; within the limits of the vacuum level in the equipment, it is possible to distill fractions at temperatures below 500°C.