Treatment of used lubrication oils by using acid treatment methods

Abstract

This research is about treatment the used oil from benzene and gasoline engine, and then determine the physical and chemical properties. The used oil was treated by two methods: The first one depend on adding concentrated sulphuric acid with using centrifuge device The other method depend on using only the acid .the percentage of the oils terminated from the first method 60% v/v and, the second one 59% v/v. The physical and chemical properties for the used oils benzene engine specific gravity at (15, 20, 50 C°), viscosity at (40,100 C°), flash point , sulfur percentage , ash content and concentration of both ferric and lead respectively ( 0.8936 , 0.890 , 0.8698 g/cm3 ) , ( 79.311 , 11.195 mm2/s ) , 135.5 C° , 0.8319% , 6.2% . The properties of benzene engine oil treated by first method is ( 0.880 , 0.8675 , 0.8498 g/cm3 ) , ( 96.115 , 12.687mm2/s ) , 207 C° , 0.08425% , 3% . properties of benzene engine oil treated by second method is ( 0.881 , 0.877 , 0.8567 g/cm3 ) , ( 96.405 , 12.89 mm2/s ) , 207.5 C° , 0.0843% , 2.7% The properties of the used oils gasoline engine is ( 0.889,0.8855,0.8652 g/cm3 ) , (88.001,11.016mm2/s ) , 125 C° , 0.695% , 1.23% . The properties of gasoline engine oil treated by first method is (0.881,0.875,0.850g/cm3 ) , (98.97,12.807mm2/s ) , 207.5 C° , 0.044% , 1.07% . properties of gasoline engine oil treated by second method is ( 0.8818,0.8783,0.8579g/cm3 ) , (99.352,12.93mm2/s ) , 208.5 C° , 0.0436% , 1.056%