C.M.C. Vivas, D.E.A. Collado
Universidad Nacional De Ingenieria,
Keywords: biodiesel, Jatropha
Summary:The study was aimed to support for biodiesel production of Jatropha oil. Fatty acid methyl ester (biodiesel) has been identified as alternative fuel obtained from renewable sources. Biodiesel production from Jatropa Curcas in Peru has had in recent years (2010 to present). It’s interest in the regional government of Tarapoto and other regions of Peru, so it is necessary to review the technology applied in the present biodiesel production. The advantages of the easy cultivation of this species make it possible to maintain a supply of raw material for the production of biodiesel from Jatropha Curcas. Basic transesterification is the most recommended technology. The literature records several studies related to obtaining biodiesel from vegetable oils, including Jatropa curcas (Ramachandran et al., 2013, Marchetti, 2012, Maltsoglou I., & Tatsuji E., 2013, Rainer J. & Dominik. D., 2011). In these studies the processing that occurs in different equipment such as: reactor, filtration, centrifuge and adsorption tank. The main factors that affect transesterification are: - Molar ratio of glycerides to alcohol - catalysts - reaction temperature - content of water and free fatty acids in oils and fats. The most common molar ratio of alcohol to glycerides is 6: 1. Basic catalysts are more effective than acid catalysts and enzymes. The amount of base usually to be used is between 0.1 to 1% w / w of oils and fats. High temperatures accelerate the reaction and the reaction time is short. The base-catalysed transesterification ends in about one hour. The oils or grease used in the transesterification must be substantially anhydrous (> 0.06% w / w) and free of fatty acids (> 0.5% w / w) In the experimental tests made in the laboratory to start the transesterification reaction, the mixture of sodium methoxide is prepared in a vessel by adding the volume of methanol and the mass of NaOH found with constant agitation. Once the sodium methoxide mixture is obtained, the oil volume to be transesterified is added to the beaker, this oil should be at a temperature of 60ºC and with agitation that should be maintained after adding the sodium methoxide. the reaction time should be 40min. After completing the transesterification reaction, the mixture is passed to a decanting pear where it must remain for 1 day. subsequently the glycerin is decanted, leaving the main product Biodiesel in the pear. From biorefinery processing perspective, waste (cake, shell) will be used to give them added value.