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In this study, non-edible oils (kapok seed) were used to optimize the biodiesel production process
variables like catalyst concentration, amount of methanol required for reaction, reaction time and reaction
temperature. The fuel properties like specific gravity, moisture content, refractive index, acid value, iodine
number, saponification value and peroxide value were estimated. Based on the cetane number and iodine
value, The combination of these variables (temperature, catalyst concentration, reaction time, and molar ratio
of alcohol to oil) was used in factorial experimental design for biodiesel production optimization by
transesterification of Kapok seed oil with methanol.