Process Optimization for Biodiesel Synthesis From Jatropha Curcas Oil
DOI:
https://doi.org/10.13052/dgaej2156-3306.2641Keywords:
Biodiesel, Jatropha Curcas Oil, Transesterification, Engine PerformanceAbstract
Crude Jatropha Curcas Oil (CJCO) obtained from the seeds grown
in the Western Ghat section of South India was investigated for biodie-
sel production using one step alkali catalyzed transesterification. The
reactions were conducted at 400 rpm agitation rate for 1 hour. Different
methanol to oil molar ratios (5.5:1, 6:1, 6.75:1, 7.5:1 and 8:1), catalyst to
oil ratios (1.43, 1.68, 1.85, 2.1, 2.35 and 2.52 %w/w of oil) and reaction
temperatures (50°C to 70°C) were employed to investigate their effect
on biodiesel yield. The maximum yield of 80.5% was obtained at the
optimum methanol to oil molar ratio of 7.5:1, catalyst to oil ratio of
2.09%w/w of oil and reaction temperature 60°C. The physiochemical
properties of the biodiesel produced meet the ASTM standards. The
reason for the low yield was observed as the high free fatty acid content
(13.7 mg KOH/g of oil) in the Crude Jatropha Curcas oil. A biodiesel
fueled four-stroke diesel engine-generator set yielded an overall fuel-
to-electricity efficiency of 24.38% at maximum load condition, thus
showing the possibility of utilization of CJCO derived fuel in diesel
engines.
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