%0 Journal Article %T Biodiesel Production from Unrefined Rice Bran Oil through Three-Stage Transesterification %A V. R. Kattimani %A B. M. Venkatesha %A S. Ananda %J Advances in Chemical Engineering and Science %P 361-366 %@ 2160-0406 %D 2014 %I Scientific Research Publishing %R 10.4236/aces.2014.43039 %X

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 (55กใC to 60กใC).

%K Biodiesel %K Ricebran Oil %K Free Fatty Acid %K Transesterification %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=47853