Abstract
Marine fuel oil is generally supposed to be free of used lubricating oil, but bunker oil sometimes contains used oil. Treatment of waste oil generated on board ships is very important. Although waste oil is usually burned up in an incinerator, such waste oil as used lubricating oil is sometimes mixed into fuel oil and reused as energy.
This paper reports a study of the combustion characteristics of fuel oil mixed with engine oil used in-house. We found that harmless combustion of fuel oil containing 5% or less used engine oil is possible.
