Study of Polyaromatic Hydrocarbons in Current Used Motor Oils
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چکیده
Used motor oils (UMO) are a remarkable commodity arousing interest of each new generation of researchers. UMO also include used gear oils, but their degree of use is much lower. The primary role of motor oil is to reduce friction and prevent corrosion. It also serves to dissipate heat and hold in suspension by-products of engine wear, combustion and degradation products. Motor oil originates from base oils obtained from petroleum fractions. Petroleum, however, contains only a small percentage (2-4 %) [1] of components suitable for this purpose. The main base oil constituents are paraffins, olefins, aromates and cyclanes.
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