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From the proposedprocess, biodiesel and toasted soybean seed were obtained. To purify thebiodiesel sample it was necessary to use ultra-centrifugation to separate seedparticles, and rotoevaporation to separate the fatty acid ethyl ester andunreacted ethanol. The chemical analyses were conducted directly by gaschromatography. The yield was calculated in accordance with concentrationsobtained in the chromatographic analysis and seed mass of the experiment. Alsochecked was the presence of palmitate esters, stearate, oleate, linoleate andlinolenate. By analyzing the estercomposition it was possible to assess whether a good quality biodiesel wasavailable. The roasted soybean seeds obtained after the reaction showed acalorific potential of 2203.17 kcal-kg and also be used as fuel.


Supercritical, Biodiesel, Non-Catalytic Transesterification, Ethyl Ester, Soybean Seed

Cite this paper

Mariano, G. , Lopes, T. , Dias, R. , Bastos Quadri, M. and Bolzan, A. 2014 Production of Biodiesel with Seed Soybean and Supercritical Ethanol. Journal of Sustainable Bioenergy Systems, 4, 128-135. doi: 10.4236-jsbs.2014.42012.

Autor: Gabriel Cassemiro Mariano, Toni Jefferson Lopes, Rafael Dias, Marintho Bastos Quadri, Ariovaldo Bolzan



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