Crude oil is subjected to vacuum distillation in the last stage, because_________________?
Correct answer: A. High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may
- A. High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may
- B. decompose
- C. Lighter/low boiling products are prone to thermal decomposition
- D. High purity products can be obtained thereby
- E. None of these
Explanation
Vacuum distillation lowers the boiling temperatures of heavy fractions, allowing them to be separated without severe heating. This prevents high-boiling products such as heavy fuel oil and lubricating-oil fractions from thermally decomposing.
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