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Research Journal of Applied Sciences

Year: 2006  |  Volume: 1  |  Issue: 1  |  Page No.: 7 - 10

Kinetic on Thermal Decomposition Reactions of Mineral Lubricant Oils by Thermogravimetry

J.C.O.Santos, I.M.G. Santos and A.G. Souza


This study seeks to characterize the thermal decomposition process of automotive mineral lubricant oils in relation to its kinetic properties. Using kinetic study of decomposition of automotive mineral lubricant oils, degradation energy can be evaluated. The kinetic study was accomplished using thermogravimetric curves based on weight loss as a function of temperature. The kinetic behavior of the analyzed lubricant oils depends on atmosphere and heating rates used in TG analysis. On the other hand, the results were satisfactory, presenting good correlation, with a linear correlation coefficient close of the unit with a low standard deviation.