Jatropha cinerea seed oil as a potential non-conventional feedstock for biodiesel produced by an ultrasonic process
This work demonstrates that Jatropha cinerea (J. cinerea) seed oil has potential as a new, non-conventional, bio-energy resource. The physical and chemical properties of J. cinerea seeds, collected from its natural habit, were evaluated. The length-, diameter- and weight- of seeds were in the ranges of 8 to 12 mm, 7.5 to 11 mm, and 0.2 to 0.7 g, respectively. Additionally, the amount of oil in the seed kernel was 65.77 wt.%, and it contained 15*% saturated, 33% monounsaturated, and 51% polyunsaturated fatty acids. The major constituent (50 .8 wt%) of crude J. cinerea oil was linoleic acid. Based on its content of phorbol esters (0.22 mg g-1), J. cinerea was considered to be a non-toxic Jatropha species. Iodine, saponification, and acid values of the J. cinerea seed oil were similar to those of the J. curcas seeds oil; therefore, it was suggested that J. cinerea oil had the quality required for biodiesel production from J. cinerea seeds oil was produced by a sonotransesterification process, evaluating the effect of the methanol: oil molar ratio (MOR), temperature, and reaction time. The best conditions for biodtesel production were 25°C, a MOR of 4:1, and a notably short reaction time of 20 s. These conditions were very advantageous as compared to those required by conventional processes, and very promising for the development of a low cost biodiesel production process using J. cinerea seed oil as a feedstock.
| Main Authors: | , , , , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Universidad Autónoma Metropolitana, División de Ciencias Básicas e Ingeniería
2014
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1665-27382014000300008 |
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