Recycled motor oil can be combusted as fuel, usually in plant boilers, space heaters, or industrial heating applications such as blast furnaces and cement kilns.^{[citation needed]} Recycled motor oil can be distilled into diesel fuel or marine fuel in a process similar to oil re-refining, but without the final hydrotreating process.^{[citation needed]} The lubrication properties of motor oil persist, even in used oil, and it can be recycled indefinitely.^[3]

Used motor oil re-refining

See also: Motor oil: Re-refined motor oil

Used oil re-refining is the process of restoring used oil to new oil by removing chemical impurities, heavy metals and dirt.^[2] Used Industrial and automotive oil is recycled at re-refineries. The used oil is first tested to determine suitability for re-refining, it is then dehydrated in order to remove water, which is then treated before being released into the environment. Dehydrating also removes the residual light fuel that can be used to power the refinery, and additionally captures ethylene glycol for re-use in recycled antifreeze.

Next, industrial fuel is separated out of the used oil then vacuum distillation removes the lube cut (that is, the fraction suitable for reuse as lubricating oil) leaving a heavy oil that contains the used oil's additives and other by-products such as asphalt extender. The lube cut next undergoes hydro treating, or catalytic hydrogenation to remove residual polymers and other chemical compounds, and saturate carbon chains with hydrogen for greater stability.

Final oil separation, or fractionating, separates the oil into three different oil grades: Light viscosity lubricants suitable for general lubricant applications, low viscosity lubricants for automotive and industrial applications, and high viscosity lubricants for heavy-duty applications. The oil that is produced in this step is referred to as re-refined base oil (RRBL).

The final step is blending additives into these three grades of oil products to produce final products with the right detergent and anti-friction qualities. Then each product is tested again for quality and purity before being released for sale to the public.^[4][5][6]

The RESEM Waste Oil Distillation Plant is an example of a commercial closed loop oil recycling, turning used oil into a base oil for sale.

For  more  detail you can contact us (energycoltd@gmail.com)or call (+23770747109)or (+23733157789)

Best Regards

Mr AGBOR Tabi