Abstract
In previous study, effects of butylated hydroxytoluene (BHT) as an antioxidant on oxidation stability of biodiesel fuel have been evaluated through the accelerated oxidation test. Also, improvemnet of auto-oxidation stability by addition of d-limonene, derived from orange oil, have been discussed based on the result of long-term aging test. The main prupose of this study is to clarify the antioxidants suitable for 5 wt-% biodiesel blend(B5). Effects of several kinds of antioxidants were evaluated by measuring induction period of peroxide IP, increase in acid value, peroxide value and kinematic viscosity during acclerated oxidation process. Also, a relationship between B5 and neat FAME on oxidation stability with antioxidants with investigated.
