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The Preparation of Biodiesel with Waste Soybean Oil

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Abstract

The fatty acid methyl ester(biodiesel) and glycerod(glycerin) obtained by transesterification between waste bean oil and methanol under the action of NaOCH3.Through orthogonal analysis,the optimum conditions were obtained for the transesterification: molar ratio of methanol to oil 7∶1,reaction temperature 60℃,reaction time 90min,and the amount of NaOCH3 0.8%.The yield of the biodiesel can reached 93.71%.The glycerol purity after distillation can reach more than 97.5%.

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What this paper is about

The fatty acid methyl ester(biodiesel) and glycerod(glycerin) obtained by transesterification between waste bean oil and methanol under the action of NaOCH3.Through orthogonal analysis,the optimum conditions were obtained for the transesterification: molar ratio of methanol to oil 7∶1,reaction temperature 60℃,reaction time 90min,and the amount of NaOCH3 0.8%.The yield of the biodiesel can reached 93.71%.The glycerol purity after distillation can reach more than 97.5%.

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Available abstract

The fatty acid methyl ester(biodiesel) and glycerod(glycerin) obtained by transesterification between waste bean oil and methanol under the action of NaOCH3.Through orthogonal analysis,the optimum conditions were obtained for the transesterification: molar ratio of methanol to oil 7∶1,reaction temperature 60℃,reaction time 90min,and the amount of NaOCH3 0.8%.The yield of the biodiesel can reached 93.71%.The glycerol purity after distillation can reach more than 97.5%.

Key concepts: Transesterification, Biodiesel, Methanol, Fatty acid methyl ester, Biodiesel production, Waste oil, Soybean oil, Organic chemistry

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