Abstract:
The stability of fuel during storage is an important consideration for bulk users. Storage instability leads
to solids formation which can plug nozzles and filters. This work focuses on the effect of the addition of
antioxidants on EURO-III and Jatropha Biodiesel blends. The changes in physico-chemical properties
were observed for these blends after addition of antioxidants. BHA (butylated hydroxy anisole), BHT
(butylatedhydroxy toluene), TBHQ (tert-butylhydroxyquinone) and DPA (diphenylamine) were the antioxidants
used for this study. The rate of change in kinematic viscosity and density of EURO-III-Jatropha
Biodiesel blends with antioxidants were found to be less as compared to the neat samples. The oxidation
stability of the neat samples, after addition of antioxidants, was found to increase significantly. It was also
observed that addition of antioxidant significantly improved the oxidation stability of biodiesel-diesel
fuel blends however in some case may act as pro-oxidants. The results showed that the addition of an
antioxidant to diesel fuel blends influenced beneficially most of the important fuel properties.
