Biodiesel Production from Unrefined Rice Bran Oil through Three-Stage Transesterification

• 作者: B. M. Venkatesha S. Ananda V. R. Kattimani
• 来源期刊: 化学工程与科学期刊(英文)
• 学科: 化学
• 关键词: BIODIESEL Ricebran OIL Free FATTY ACID TRANSESTERIFICATION
• 年，卷（期）: 2014,（3）
• 页码范围: 361-366
• 页数: 6页
• 分类号: O6

摘要

Unrefined rice bran oil (UNRFRBO) with high free fatty acids (FFA) is used as a source for the production of unrefined rice bran oil methyl ester (UNRFRBOME). Three-stage transesterification process is successfully used. Initially, the FFA of UNRFRBO is reduced to 1% (0.8%) by using two stages esterification process with methanol in the presence of acid (H2SO4) as a catalyst. Finally, biodiesel has produced by alkaline (NaOH) catalyzed transesterification process which has designed according to the central composite design. 90% has obtained at the optimum values of CH3OH (20% v/v of oil), NaOH (1.0% w/v of oil), reaction time (60 minutes) and reaction temperature (55°C to 60°C).