PRODUCTION OF BIO-DIESEL FROM JATROPHA CURCAS SEED USING IN-SITU TECHNIQUE: EFFECT OF CATALYST AMOUNT AND ALCOHOL-SEED RATIO

  • O. U. Dairo University of Agriculture, Abeokuta. P.M.B 2240. Ogun State, Nigeria.
  • T. M. A. Olayanju University of Agriculture, Abeokuta. P.M.B 2240. Ogun State, Nigeria.
  • O. Amusan University of Agriculture, Abeokuta. P.M.B 2240. Ogun State, Nigeria.
Keywords: in-situ, trans-esterification, Jatropha Curcas seed, biodiesel, response surface, bio-mass

Abstract

The effect of alcohol seed ratio(0.5,1.5 & 2.0) and initial catalyst amount(0.5,1.0 & 1.5%) on the in-situ production of biodiesel from raw Jatropha Curcas seed was studied at a reaction temperature of 600C and reaction time of 120min.  Central composite experimental design was applied to evaluate effects of alcohol-seed weight ratio (0.5 – 2.0) and initial catalyst amount (0.5 – 1.5%).  Initial catalyst amount and alcohol seed ratio was found to have significant (P<0.05) effects on the yield.  Initial catalyst amount was the more important factor and had a positive influence on the yield than alcohol seed ratio which does not significantly affect the yield as a single factor. Due to formation of by-products (soaps) caused by excessive amount of catalyst and excess alcohol leading to difficult ester separation from glycerol, there was a general reduction in Jatropha Curcas  ethyl-ester as levels of catalyst and alcohol seed ratio increased.  A second-order model was obtained to predict the yield as a function of all factors. The model predicted well the observed data with a R2 value of 0.985 and a non-significant Lack-of-Fit (P<0.05). The biodiesel obtained, compared favorably with the ASTM D6751-02 standard for biodiesel but the viscosity.

Author Biographies

O. U. Dairo, University of Agriculture, Abeokuta. P.M.B 2240. Ogun State, Nigeria.

Department of Agricultural Engineering,

 

T. M. A. Olayanju, University of Agriculture, Abeokuta. P.M.B 2240. Ogun State, Nigeria.

Department of Agricultural Engineering,

 

O. Amusan, University of Agriculture, Abeokuta. P.M.B 2240. Ogun State, Nigeria.

Department of Agricultural Engineering

 

Published
2013-07-02
How to Cite
Dairo, O., Olayanju, T., & Amusan, O. (2013). PRODUCTION OF BIO-DIESEL FROM JATROPHA CURCAS SEED USING IN-SITU TECHNIQUE: EFFECT OF CATALYST AMOUNT AND ALCOHOL-SEED RATIO. LAUTECH Journal of Engineering and Technology, 7(2), 31-36. Retrieved from http://laujet.com/index.php/laujet/article/view/126
Section
Articles