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The aim of this study is to contribute to the understanding the influence of a mixture of alcohol (ethanol + methanol) instead of a single alcohol on the production yield of biodiesel via alkali catalyzed transesterification reaction. The biodiesel is produced using ethanol/methanol (6:1 molar ration), 0.5% of weight of Potassium hydroxide (KOH) at 60 °C of temperature for 60 min of duration and Stirring speed of 200 RPM. In this work, The proportions chosen of the ethanol/methanol mixture are respectively 25/75%, 50/50% and 75/25%. A series of independent batch experiments was carried out according to the plan of Box-Behnken experimental design (BBED) to optimize product performance. The experimental design consists of a single response (biodiesel yield) and three influential factors (temperature, catalyst percentage and ethanol/methanol ratio). The response surface methodology (RSM) model predicted that an optimum yield of 81.031% biodiesel would be achieved from waste cooking oil at molar ratio of ethanol/methanol is 31.99.

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Effect of Ethanol and Methanol Blending on the Yield of Transesterification Reaction of Ester Waste Cooking Oil

  • 章节

  • 发表日期：

    2025年

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  • R. Alloune,
  • F. Danane,
  • R. Bessah,
  • M. Kechkar,
  • L. Tebbouche,
  • L. Guetni,
  • S. Abada,
  • M. Aziza

摘要

The aim of this study is to contribute to the understanding the influence of a mixture of alcohol (ethanol + methanol) instead of a single alcohol on the production yield of biodiesel via alkali catalyzed transesterification reaction. The biodiesel is produced using ethanol/methanol (6:1 molar ration), 0.5% of weight of Potassium hydroxide (KOH) at 60 °C of temperature for 60 min of duration and Stirring speed of 200 RPM. In this work, The proportions chosen of the ethanol/methanol mixture are respectively 25/75%, 50/50% and 75/25%. A series of independent batch experiments was carried out according to the plan of Box-Behnken experimental design (BBED) to optimize product performance. The experimental design consists of a single response (biodiesel yield) and three influential factors (temperature, catalyst percentage and ethanol/methanol ratio). The response surface methodology (RSM) model predicted that an optimum yield of 81.031% biodiesel would be achieved from waste cooking oil at molar ratio of ethanol/methanol is 31.99.