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Extraction and Optimization of Azardirachta Indica Seed Oil for Biodiesel Production

Volume: 44  ,  Issue: 1 , January    Published Date: 17 January 2020
Publisher Name: IJRP
Views: 755  ,  Download: 466

Authors

# Author Name
1 Siyanbola, A.A.
2 Obasa, P.A.
3 Shaba, I.M.

Abstract

Energy happens to be among the most important needs required to sustain and improve technological development and quality of life in any society with the major part being obtained from fossil fuels such as coal and petroleum and renewable resources such as water, wind and Solar. The threat imposed on the environment by the continuous use of fossil fuel products has called for the development of an alternative energy sources and an improvement in science and technology has led to the development of biodiesel which is been produced from renewable resources in this study, “Extraction and optimization of Azardirachta indica seed oil for biodiesel production”. Oil was extracted by varying some of the parameters that affect the yield of oil extracted from plant seeds. The parameters varied include seed moisture content, extraction temperature and extraction time keeping the particle size of 1.18mm constant. Response surface methodology was used to design the experimental matrix by using central composite design. The oil yield was observed to be 43.72% at a moisture content, extraction temperature and extraction time of 6%, 60°C and 4h respectively. The result obtained was subjected to statistical analysis and it was observed that all the process parameters varied has effect on the percentage oil yield of Azardirachta indica seed. The Physiochemical properties of the optimum yield was determined and this shows a density of 0.97g/ml, specific gravity of 0.87, kinematic viscosity of 37.42, cloud point, pour point, smoke point, flash point and fire point of 11.7°C, 7.0°C, 157°C, 171°C and 190°C respectively. Saponification to value of 240mgKOH/g, acid value of 11.03mgKOH/g, free fatty acid of 5.52(%w/w) and peroxide value of 9.43(neqO2/Kg). The extracted oil was subjected to biodiesel production and a yield of 85% was obtained. The produced biodiesel was analyzed and found to confound with ASTM standard.

KEY WORDS: Biodiesel, Extraction, Yield, Response surface, Central composite, Optimization, Renewable 

Keywords

  • Yield
  • extraction
  • biodiesel
  • response surface
  • central composite
  • opitimization
  • renewable