Abstract
Crude Jatropha Curcas Oil (CJCO) obtained from the seeds grownin the Western Ghat section of South India was investigated for biodie-sel production using one step alkali catalyzed transesterification. Thereactions were conducted at 400 rpm agitation rate for 1 hour. Differentmethanol to oil molar ratios (5.5:1, 6:1, 6.75:1, 7.5:1 and 8:1), catalyst tooil ratios (1.43, 1.68, 1.85, 2.1, 2.35 and 2.52 %w/w of oil) and reactiontemperatures (50°C to 70°C) were employed to investigate their effecton biodiesel yield. The maximum yield of 80.5% was obtained at theoptimum methanol to oil molar ratio of 7.5:1, catalyst to oil ratio of2.09%w/w of oil and reaction temperature 60°C. The physiochemicalproperties of the biodiesel produced meet the ASTM standards. Thereason 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 biodieselfueled four-stroke diesel engine-generator set yielded an overall fuel-to-electricity efficiency of 24.38% at maximum load condition, thusshowing the possibility of utilization of CJCO derived fuel in dieselengines.
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