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Influence of blending vegetable oil methyl esters on biodiesel fuel properties: Oxidative stability and cold flow properties

机译：混合植物油甲酯对生物柴油燃料性能的影响：氧化稳定性和冷流性能

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摘要

Properties of biodiesel can be related to the chemical composition of the biomass source used in transesterification. Saturated fatty acids confer high oxidative stability, while unsaturated fatty acids improve the cold flow properties, which are also influenced by the chain length. In the present study, blends of biodiesel produced from different vegetable oils were evaluated in order to obtain the proper blend to fulfill the European Standard EN14214 in terms of oxidative stability and cold flow properties. Citric acid was used to purify the methyl ester phase. Oxidative stability resulted highly dependent on polyunsaturated fatty esters while fatty ester chain length is a determining factor in cold flow performance of the blends. A preliminary study of the effectiveness of a commercial additive (a Poly alkyl methacrylate) in improving methyl ester flow at low temperatures was done, but no significant changes were found.
机译：生物柴油的性质可能与酯交换反应中使用的生物质来源的化学组成有关。饱和脂肪酸具有很高的氧化稳定性，而不饱和脂肪酸则改善了冷流特性，这也受到链长的影响。在本研究中，对从不同植物油中生产的生物柴油的混合物进行了评估，以便获得在氧化稳定性和冷流特性方面满足欧洲标准EN14214的适当混合物。柠檬酸用于纯化甲酯相。氧化稳定性高度依赖于多不饱和脂肪酯，而脂肪酯链长是共混物冷流性能的决定因素。对商业添加剂（聚甲基丙烯酸烷基酯）在低温下改善甲酯流动性的有效性进行了初步研究，但未发现明显变化。

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  • 来源
    《Energy》 |2014年第1期|109-115|共7页
  • 作者

    Marta Serrano; Ruben Oliveros; Marcos Sanchez; Andrea Moraschini; Mercedes Martinez; Jose Aracil;

  • 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;

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

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

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biodiesel blends; Fatty acids; Oxidation stability; Cold filter plugging point;

    机译：生物柴油混合物;脂肪酸;氧化稳定性;冷滤器堵塞点;

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