American Journal of Applied Sciences

Extraction of Oil from Jatropha Seeds-Optimization and Kinetics

Sepidar Sayyar, Zurina Z. Abidin, Robiah Yunus and Azhari Muhammad

DOI : 10.3844/ajassp.2009.1390.1395

American Journal of Applied Sciences

Volume 6, Issue 7

Pages 1390-1395

Abstract

Problem statement: Jatropha curcas is a wonder plant with a variety of applications and has an enormous economic potential. Oil from the seeds can be used as alternative fuel and for making biodiesel which is supposed to overcome energy crisis problems. In this study, extraction of Jatropha oil from seeds was optimized using organic solvent based on the amount of the extracted oil. The kinetics of extraction was also investigated and its parameters were determined based on a second order model. Approach: The effects of five operating parameters on the oil extraction namely type of solvents, temperature, solvent to solid ratio, processing time and particle size of the meal were investigated to optimize the processing conditions for achieving maximum oil yield. The kinetics of extraction was assumed based on a second order mechanism. The initial extraction rate, the saturated extraction capacity, the rate constant of extraction and the activation energy were calculated using the model. Results: The optimum conditions were found at 8 h reaction time, temperature of around 68

Copyright

© 2009 Sepidar Sayyar, Zurina Z. Abidin, Robiah Yunus and Azhari Muhammad. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.