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Volume 43 - 2017 -

Issue 161


The Organization ofArab PetroleumExporting Countries (OAPEC) is indeed

fortunate in selecting the theme of this year’s resea rch titled “Re-Refining of

Used Lubricating Oils and its Economic & Environmental Implications”.

Used lubricating oils affect the environment adversely for the pollutants that

they accumulate as a result of deterioration throughout the service life under the

conditions of heat and friction.

At the same time, used oils are still a hydrocarbon resource that should

be conserved as much as practicable to lessen the needs for crude oil and its


While the collection of used oil and its utilization for fuel or in re-refining

industry in the Arab countries is small and limited to few countries, increasing

interest is seen forthcoming and will pick up momentum once the governments

make it a policy to support the industry by laws and regulations and financial


The breakdown of the requested research as outlined in (OAPEC)

announcement has been covered here with the variation that was found

necessary to cover the intended purpose especially with respect to burning

used oil for energy recovery and the relationship with virgin lubes supply and

demand. It was found that the used oils question is not isolated and must be

viewed in relation to the overall industry of lubricants and to fuel users as well.

Chapter 1 deals with the history of lubrication and re-refining to see how the

re-refining industry evolved from the consumption of virgin base oils and to

take note of the similarity in processing steps of both.

In chapter 2 the environmental impact and resource conservation of used oils

disposition is discussed with respect to dumping, burning for energy recovery

or processing for base oil production.

Re-Refining of Used Lubricating Oils and its

Economic and Environmental Implications

Saadallah Al Fathi