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- W4280625695 abstract "Lube oil suffers from thermo-oxidative degradation in the engine during its service. In order to improve its service life and avoid oxidative degradation, antioxidants are added into the lube oil. The present study focuses on the utilization of low-cost biomass extracts as antioxidant additives and monitoring the level of degradation of lube oil by thermal analysis. The antioxidants used were MeOH extracts of rice husk (BO-I) and wood saw dust (BO-II). The oxidation of the lube oil samples were performed at 100 °C and 200 °C for 6 h separately in the presence of 5% of biomass extract according to modified IP method. Programmed Thermo Gravimetric Analysis was carried out in both oxygen and nitrogen atmospheres to evaluate the antioxidant characters of the BO-I and BO-II from indicators like Tonset, Toffset, mass loss as fast volatiles and weight gain. In DSC study, the indicators of degradation used were, oxidation induction temperature (OIT), percent change in OIT and variance. In case of oxidation at 100°C, the percent differences determined for MBO-I were found to be 0.87% and 0.00% and for MBO-II were 2.67% and 1.63% in O2 and N2 atmospheres, respectively. Similarly, for oxidation at 200 °C, the percent differences in T onset for the NMBO, MBO-I and MBO-II were calculated and found to be 27.77%, 9.52% and 12.74%, respectively under O2 atmosphere, whereas under N2 atmosphere were; 19.80, 12.21 and 13.76%, respectively. The percent changes in OIT values for NMBO, MBO-I and MBO-II samples in comparison with the control sample were found to be 46.99, 29.90, and 3.95%, respectively. Among the two bio-oils, the antioxidant character of the BO-I was found to be excellent compared to BO-II at 100 °C and 200 °C. The biomass extracts can be effectively used as antioxidant additives in lube oil on commercial scale." @default.
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- W4280625695 date "2022-07-01" @default.
- W4280625695 modified "2023-09-29" @default.
- W4280625695 title "Antioxidant performance of bio-oils in oxidative stability of base lubricating oil determined through TGA and PDSC techniques" @default.
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- W4280625695 doi "https://doi.org/10.1016/j.tca.2022.179241" @default.
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