ENVIRONMENT & WASTE OIL

Dansk Olie Genbrug A/S collects and re-refines used lubricants from engines, hydraulic systems, transformers etc.

The waste oils are refined into base oil, which is used in production of new lubricating oil.

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Technology, re-refining used lubricating oils

The oils are re-refined in such a way that hazardous heavy metals and other contaminants are removed.

The oil is pre-heated and filtered, until water is removed in a flash distillation. Water makes up an average of 6 - 8 % of the waste oil received. The dry oil is fully regenerated and fractioned into reusable base oil (60-65%) and the combustion-suitable products, the pure light ends (LE) (2-4 %) and heating oil (F10) (12 -15%) and finally the heavy metal bottom product bitumen (residues from the distillation process) (14-18%).

The base oil fraction is then re-filtered and refined in an extraction process, in which aromatic compounds are rinsed out.

All products are subject to ongoing analysis, in both internal and external laboratories, so that we can be sure to maintain the same high quality.