Regeneration of used lubricating oil – what are the boiling points of various base oils?
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What are the boiling points of recycled waste lubricating oil, light base oil, medium base oil, and heavy base oil?
Base oil requires vacuum distillation; the boiling point at atmospheric pressure is meaningless. The vacuum distillation range is related to the degree of vacuum.
What is that boiling range approximately?
Taking 150 N as an example, this corresponds to a boiling range of 350–400°C at normal pressure.
Is there still any profit in distilling and reusing used lubricating oil these days?
It’s not easy; nowadays waste must be handled in strict accordance with regulations, and there’s no profit left. . .