A method and system for circular use of industrial oil

摘要

A method for circular use of industrial oil and an oil recovery system, said method comprising reconditioning of a used industrial oil, said reconditioning comprising the steps of: - adding a liquid separation booster to a used industrial oil, wherein said separation booster is designed to attract impurities in the used oil and to be passive onto, i.e. not attracting, at least one specific additive in the oil; - separating out the separation booster with attracted impurities from the used industrial oil while leaving the at least one specific additive in the oil.