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Optimization of the transesterification reaction in biodiesel production

机译：生物柴油生产中酯交换反应的优化

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摘要

In this paper response surface methodology (RSM) was used to study the transesterification reaction of rapeseed oil for biodiesel production. The three main factors that drive the conversion of triglycerides into fatty acid methyl esters (FAME) were studied according to a full factorial design at two levels. These factors were catalyst concentration (KOH), temperature and reaction time. The range investigated for each factor was selected taking into account the process of Fox Petroli S.p.A. Analysis of variance (ANOVA) was used to determine the significance of the factors and their interactions which primarily affect the first of the two transesterification stages. This analysis evidenced the best operating conditions of the first transesterification reaction performed at Fox's plant: KOH concentration 0.6% w/w, temperature 50 ℃ and reaction time 90 min with a CH_3OH to KOH ratio equal to 60. Three empirical models were derived to correlate the experimental results, suitable to predict the behavior of triglyceride, diglyceride and monoglyceride concentration. These models showed a good agreement with the experimental results, demonstrating that this methodology may be useful for industrial process optimization.
机译：本文采用响应面方法（RSM）来研究菜籽油用于生物柴油生产的酯交换反应。根据两个因子的全因子设计，研究了驱动甘油三酸酯转化为脂肪酸甲酯（FAME）的三个主要因素。这些因素是催化剂浓度（KOH），温度和反应时间。选择每个因素要研究的范围时要考虑到Fox Petroli S.p.A.的过程。使用方差分析（ANOVA）来确定主要影响两个酯交换阶段中第一个阶段的因素及其相互作用的重要性。该分析证明了在福克斯工厂进行的第一次酯交换反应的最佳操作条件：KOH浓度为0.6％w / w，温度为50℃，反应时间为90分钟，CH_3OH与KOH的比率等于60。得出了三个相关的经验模型实验结果，适合于预测甘油三酸酯，甘油二酸酯和甘油单酸酯的行为。这些模型与实验结果显示出良好的一致性，表明该方法可能对工业过程优化有用。

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  • 来源
    《Fuel》 |2010年第1期|36-42|共7页
  • 作者

    F. Ferella; G. Mazziotti Di Celso; I. De Michelis; V. Stanisci; F. Veglio;

  • 作者单位

    Department of Chemistry, Chemical Engineering and Materials, University of L'Aquila, Monteluco di Roio, 67040 L'Aquila, Italy;

    Department of Food Science, University of Teramo, Via C.R. Lerici 1, 64023 Mosciano Sant'Angelo (TE), Italy;

    Department of Chemistry, Chemical Engineering and Materials, University of L'Aquila, Monteluco di Roio, 67040 L'Aquila, Italy;

    Fox Petroli S.p.A., Via Osca 74, 66054 Vasto (CH), Italy;

    Department of Chemistry, Chemical Engineering and Materials, University of L'Aquila, Monteluco di Roio, 67040 L'Aquila, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biodiesel; rapeseed oil; transesterification; ANOVA;

    机译：生物柴油菜籽油;酯交换方差分析;

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