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Optimization of the reaction parameters for fast pseudo single-phase transesterification of sunflower oil

机译：向日葵油快速伪单相酯交换反应参数的优化

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摘要

Transesterification of sunflower oil with methanol was carried out using potassium hydroxide and meth-oxide as catalysts and MTBE as cosolvent. The aim of this work was to study and optimize the reaction parameters. Chosen parameters were reaction time, catalyst amount and methanol amount (expressed as catalyst-to-oil and methanol-to-oil molar ratios, respectively). The response variables were methyl ester content (ME) and acid value (AV) due to their relationship with the completion and yield reaction, respectively. A factorial plus composite design was developed to carry out the optimization. From this design, several quadratic models have been used to fit the experimental data. All the factors studied had a positive influence on methyl ester content and acid value, except the methanol amount on acid value. For methoxide catalyst, optimum values were 0.235 catalyst to oil molar ratio, 12 methanol to oil molar ratio and 5 min reaching 99 wt.% ME and 0.20 mg KOH/g of AV.
机译：向日葵油与甲醇的酯交换反应是使用氢氧化钾和甲醇盐作为催化剂，MTBE作为助溶剂进行的。这项工作的目的是研究和优化反应参数。选择的参数为反应时间，催化剂量和甲醇量（分别表示为催化剂与油的摩尔比和甲醇与油的摩尔比）。响应变量分别为甲酯含量（ME）和酸值（AV），这是由于它们分别与完成反应和产率反应有关。开发了阶乘加复合设计以进行优化。通过这种设计，已经使用了几个二次模型来拟合实验数据。除甲醇含量对酸值的影响外，所有研究的因素均对甲酯含量和酸值产生积极影响。对于甲醇盐催化剂，最佳值为催化剂与油的摩尔比为0.235，甲醇与油的摩尔比为12，以及5分钟达到99％（重量）ME和0.20 mg KOH / g AV。

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  • 来源
    《Fuel》 |2010年第3期|650-658|共9页
  • 作者

    Abraham Casas; Carmen Maria Fernandez; Maria Jesus Ramos; Angel Perez; Juan Francisco Rodriguez;

  • 作者单位

    Department of Chemical Engineering, Institute for Chemical and Environmental Technology (ITQUIMA), University of Castilla-La Mancha, Avd. Camilo Jose Cela s 13071, Ciudad Real, Spain;

    Department of Chemical Engineering, Institute for Chemical and Environmental Technology (ITQUIMA), University of Castilla-La Mancha, Avd. Camilo Jose Cela s 13071, Ciudad Real, Spain;

    Department of Chemical Engineering, Institute for Chemical and Environmental Technology (ITQUIMA), University of Castilla-La Mancha, Avd. Camilo Jose Cela s 13071, Ciudad Real, Spain;

    Department of Chemical Engineering, Institute for Chemical and Environmental Technology (ITQUIMA), University of Castilla-La Mancha, Avd. Camilo Jose Cela s 13071, Ciudad Real, Spain;

    Department of Chemical Engineering, Institute for Chemical and Environmental Technology (ITQUIMA), University of Castilla-La Mancha, Avd. Camilo Jose Cela s 13071, Ciudad Real, Spain;

  • 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; pseudo single-phase; cosolvent; response surface; factorial design;

    机译：生物柴油伪单相助溶剂响应面析因设计;

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