2010
DOI: 10.1590/s0100-46702010000400013
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Parâmetros da reação de transesterificação etílica com óleo de milho para produção de biodiesel

Abstract: razão molar > tipo de catalisador > velocidade de rotação > tempo > temperatura. Avaliaram-se, também, as interações estatísticas entre as variáveis e suas correlações com os fatores principais da reação.]]>

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Cited by 10 publications
(4 citation statements)
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“…± 0.02×10 -4 for diesel, BMR and BER biodiesel, respectively. [20][21][22] The percentage of explained variance for this model was 99.99%, showing an excellent correlation of the linear model with experimental data. The F value provides an indication of the significance of the regression and all calculated F was greater than the F tabulated in Table 3, which have a regression statistically significant at 95% confidence.…”
Section: Coefficient Of Volumetric Expansion For Biodieselmentioning
confidence: 56%
“…± 0.02×10 -4 for diesel, BMR and BER biodiesel, respectively. [20][21][22] The percentage of explained variance for this model was 99.99%, showing an excellent correlation of the linear model with experimental data. The F value provides an indication of the significance of the regression and all calculated F was greater than the F tabulated in Table 3, which have a regression statistically significant at 95% confidence.…”
Section: Coefficient Of Volumetric Expansion For Biodieselmentioning
confidence: 56%
“…The reduction in the yield from a certain point of excess alcohol was reported in several studies. One of the possibilities is that the yield decreases due to the dissolution of glycerol in the excess alcohol, which inhibits the reaction (HANH et al, 2007;LATCHUBUGATA et al, 2018;LIMA et al, 2010;MORAIS et al, 2013;ROOSTA;SABZPOOSHAN, 2016).…”
Section: Resultsmentioning
confidence: 99%
“…Alkaline homogeneous catalysts, at concentrations of 0.5 mass% and 1.5 mass% relative to oil mass, competitively activate saponification reactions reasonably faster due to the availability of free fatty acid in the medium and transesterification, which decreases the reaction yield (LIMA et al, 2010). The positive sign of the variables time and ethanol, corresponding to the molar ratio, shows that larger values promote higher reaction yields, which do not present significant contributions when below 5%.…”
Section: Biodieselmentioning
confidence: 99%
“…The experimental design was developed by other authors analyzing variables not investigated in this work. Lima et al (2010), in the transesterification reaction of corn oil triglycerides with ethanol, found that the or-der of significance for the effects of process factors is: catalyst concentration > molar ratio > type of catalyst > rotation speed > time > temperature. Biodiesel with the lowest percentage of catalyst has the best results.…”
Section: Biodieselmentioning
confidence: 99%