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Oxidation stability of biodiesel from different feedstocks: Influence of commercial additives and purification step

机译:不同原料的生物柴油的氧化稳定性:商业添加剂和纯化步骤的影响

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摘要

The present study investigates the effectiveness of three commercial synthetic (AO1, AO2 and AO3) and one natural (AO4) antioxidants to improve the oxidation stability of various biodiesel fuels produced from different vegetable oils: soybean methyl ester (SBME), rapeseed methyl ester (RME), high oleic sunflower methyl ester (HOSME) and palm methyl ester (PME) and prepared by two different purification steps, using distilled water and acidified distilled water (0.1 M citric acid solution) wash methods. The results of this study have shown that different biodiesel samples have different levels of oxidative stability. Antioxidants can improve the oxidation stability and the antioxidant effect increases as a function of its concentration. This study showed that the use of citric acid (0.1 M) instead of distilled water in the purification step improved the oxidative stability of biodiesel from different feedstocks, and the washing agent volume required resulted reduced. Results obtained were fitted to an equation in order to predict the minimum antioxidant dosage to meet EN 14214. The information generated in this study could be used to better understand the oxidation stability and its effect on the quality of pure biodiesel.
机译:本研究调查了三种商业合成抗氧剂(AO1,AO2和AO3)和一种天然抗氧剂(AO4)的有效性,以提高由不同植物油生产的各种生物柴油燃料的氧化稳定性:大豆甲酯(SBME),菜籽甲酯( RME),高油酸向日葵甲酯(HOSME)和棕榈甲酯(PME),并通过两个不同的纯化步骤制备,分别使用蒸馏水和酸化蒸馏水(0.1 M柠檬酸溶液)洗涤方法。这项研究的结果表明,不同的生物柴油样品具有不同水平的氧化稳定性。抗氧化剂可提高氧化稳定性,抗氧化剂作用随其浓度而增加。这项研究表明,在纯化步骤中使用柠檬酸(0.1 M)代替蒸馏水可以提高来自不同原料的生物柴油的氧化稳定性,并减少所需的洗涤剂量。将所得结果拟合为方程式,以预测满足EN 14214的最低抗氧化剂剂量。本研究中产生的信息可用于更好地理解氧化稳定性及其对纯生物柴油质量的影响。

著录项

  • 来源
    《Fuel》 |2013年第11期|50-58|共9页
  • 作者单位

    Department of Chemical Engineering, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain;

    Department of Chemical Engineering, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain;

    Department of Chemical Engineering, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain;

    Department of Chemical Engineering, Faculty of Chemistry, Complutense University, 28040 Madrid, 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; Antioxidants; Oxidative stability; Rancimat method; Citric acid;

    机译:生物柴油抗氧化剂;氧化稳定性;兰契玛方法柠檬酸;

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