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

作　　者：V. R. Kattimani B. M. Venkatesha S. Ananda 

机构地区：[1]Department of Chemistry, Basaveshwar Engineering College, Bagalkot, India [2]Department of Chemistry, Yuvaraja’s College, University of Mysore, Mysore, India [3]Department of Studies in Chemistry, University of Mysore, Mysore, India

出　　处：《Advances in Chemical Engineering and Science》2014年第3期361-366,共6页化学工程与科学期刊（英文）

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).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).

关 键 词：BIODIESEL Ricebran OIL Free FATTY ACID TRANSESTERIFICATION 

分 类 号：O6[理学—化学]