The heart of the process lies in distillation. The oil is heated under vacuum, causing various fractions to evaporate at specific temperatures. Lighter components like gasoline and diesel are separated first, followed by heavier fractions used for lubricants and asphalt. This fractional distillation essentially disassembles the used oil, extracting its valuable components.
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Waste oil is a growing environmental concern worldwide, with millions of gallons discarded annually. However, rather than being an insurmountable problem,