Preparation of Biodiesel from Crude Rubber Seed Oil by Alkaline Transesterification

摘要: Abstract: This paper is focused on the preparation of biodiesel from crude rubber seed oil with high free fatty acids (FFA) content. The seeds were collected in Xishuangbanna, Yunnan province. Two-step synthesis was selected to obtain product, that is, acid catalyzed esterification carried out first decrease FFA content, then methyl esters can be formed by alkaline transesterification. reaction conditions transesterification investigated. results show optimum technique carry at 60°C for 1.5h, methanol-to-oil molar ratio 6:1, catalyst amount 1.0% (g NaOH/ g oil). yield reach 75%. GC analysis shows content 82.29%. Some properties prepared are also presented.