Application of re-refined oils Although many people are sceptical about the quality of re-refined base oils, Mercedes-Benz 228.3, Volkswagen 500.00 and 505.00, and API SN and CJ-4 quality approvals have been obtained by several leading lubricant and additive manufacturers [6]. Mercedes-Benz, Volkswagen, Fiat, Ford and MAN all accept high quality re-refined oils. In addition, Mercedes-Benz and Volkswagen stated successful results that re-refined oils are achieving the same performance as new oils.
Sustainability and Environmental benefits There are many sustainability and environmental benefits such as [7]: • With capturing and re-refining waste oil, the risk of waste oil getting into and harming the environment is significantly reduced
•
Carbon footprint of re-refined base oil can be reduced by up to 50% compared to the carbon footprint of the conventional production of base oil [8]
• • •
For re-refining of base oil there is no need for fresh base oil to be produced
Increased sustainability for companies which use re-refined lubricants that were originally sent as waste oil for re-refining
Increased corporate reputation as an environmentally friendly company which uses re-refining
Conclusion Both recycling and re-refining process will improve sustainability and environmental benefits of the companies but in different ratios. Below you can find different reduction ratios of environmental impact when the waste oil is used as re-refined waste oil or fuel oil.
It can be concluded that the re-refining process gives greater sustainable and environmental benefits as well as larger profit then recycling process, which would mean that re-refining processes should be introduced wherever it is profitable.
One solution for reducing the consumption of virgin base oil, is using re-refined base oil in lubricant industry. At the end it can be concluded that the companies which re-refine waste oil are more sustainable and therefore more environmentally friendly than the companies that recycle waste oil.
References [1] Waste Oil Market – Global Industry Analysis And Forecast (2021 to 2029) https://www.
maximizemarketresearch.com/market- report/global-waste-oil-market/65355/
[2] Directive (EU) 2018/851 of the European Parliament and of the Council of 30 May 2018 amending Directive 2008/98/EC on waste
https://eur-lex.europa.eu/legal-content/EN/ TXT/?uri=celex%3A32018L0851
[3] European Union (Withdrawal) Act 2018 https://
www.legislation.gov.uk/ukpga/2018/16/ section/3
[4] Uses for Recycled Oil - What Happens to Your Recycled Used Oil https://www.environment.
gov.au/protection/used-oil-recycling/ recycling-your-oil/uses-recycled-oil
[5] Basel convention technical guidelines on used oil re-refining or other re-uses of previously used oil
http://www.basel.int/Portals/4/Basel%20 Convention/docs/meetings/sbc/workdoc/ old%20docs/tech-r9.pdf
[6] STP Present Used Lube Oil Re-refining;
https://www.stpitaly.eu
[7] Used oil recycling: good for the environment, good for business https://www.
recyclingproductnews.com/article/25604/ used-oil-recycling-good-for-the- environment-good-for-business
[8] Waste Framework Directive revision: European waste oil re-refining industry position
https://www.geir-rerefining.org/wp-content/ uploads/GEIRpositionpaperWFD_2016_ FINAL.pdf
[9] Main findings from the Institute für energie (IFEU) study
https://www.geir-rerefining.org/ ifeu-study-summary/
Figure 4: Reduction of environmental impact based on use of waste oil [9]
LUBE MAGAZINE NO.176 AUGUST 2023
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