Comparative Studies of Oxidative Stability Properties of Biodiesel Produced from Azadirachta indica and Hevea brasiliensis seeds.

摘要: The aim of the study was to establish stability biodiesel due oxidation. Two non-edible seed oils were used; Azadirachta indica and Hevea brasiliensis used produce first rapid oxidative assessed then their properties with without additives compared thereof over a range one year storage period. results biodiesels for induction long term period revealed that physico-chemical produced from seeds oil changed time. For test, none samples could pass 6 hrs oxidation test neem exhibiting best rubber worst. Both additives, namely 0.5% tert -butyl hydroquinone (TBHQ) 0.1% Ecotive increased all three more than 6hrs. per-oxide value, density, viscosity acid number methyl esters However, calorific value found be decreasing samples. rate change different less in case an additive. appeared better additive as TBHQ increasing shelf life biodiesel.