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首页> 外文期刊>International journal of green energy >A CONVENIENT ROUTE FOR THE ALKOXYLATION OF BIODIESEL AND ITS INFLUENCE ON COLD FLOW PROPERTIES
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A CONVENIENT ROUTE FOR THE ALKOXYLATION OF BIODIESEL AND ITS INFLUENCE ON COLD FLOW PROPERTIES

机译：生物柴油烷氧基化的简便路线及其对冷流性能的影响

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摘要

The attachment of alkoxy side chains to biodiesel and the associated effects on its cold flow properties are reported. High oleic methyl ester biodiesel was epoxidized using per-oxy formic acid and subsequently alkoxylated using nine different alcohols employing BF_3-ethereate complex as catalyst. A low molar excess for alcohols was used at moderately low reaction temperatures (40-50℃). A high conversion for attachment of alkoxy group ranging 84%-93% was achieved with excellent selectivity. Cloud points, pour points, and kinematic viscosities were measured to evaluate the cold flow properties of modified biodiesel. The lowest cloud point -11℃ and pour point -14℃ were obtained with n-decoxy biodiesel. Elevated kinematic viscosities were observed for all alkoxylated products. The lowest kinematic viscosity (6.26 mm~2·s~(-1) was observed for methoxy biodiesel. Gas chro-matography mass spectrometry (GC-MS), proton nuclear magnetic resonance (~1H NMR), ~(13)C NMR, and Fourier transform infrared (FT-IR) were used for structural elucidation. The reported alkoxylation route has high conversion rate and is convenient to implement.
机译：据报道烷氧基侧链对生物柴油的附着及其相关的冷流特性影响。使用过氧甲酸将高油酸甲酯生物柴油环氧化，然后使用九种不同的醇（以BF_3-醚酸酯配合物为催化剂）进行烷氧基化。在中等较低的反应温度（40-50℃）下使用低摩尔过量的醇。烷氧基的高连接转化率达到84％-93％，选择性极好。测量浊点，倾点和运动粘度，以评估改性生物柴油的冷流特性。正脱氧生物柴油的最低浊点为-11℃，倾点为-14℃。观察到所有烷氧基化产物的运动粘度升高。甲氧基生物柴油的运动粘度最低（6.26 mm〜2·s〜（-1）。气相色谱质谱（GC-MS），质子核磁共振（〜1H NMR），〜（13）C NMR并用傅立叶红外光谱仪（FT-IR）进行结构解析，报道的烷氧基化途径转化率高，易于实施。

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  • 来源
    《International journal of green energy》 |2014年第5期|267-279|共13页
  • 作者

    M. Mushtaq; Isa M. Tan; M. Nadeem; Cecilia Devi; Susan Y. C. Lee; M. Sagir;

  • 作者单位

    Chemical Engineering Department, Universiti Teknologi PTERONAS, Bandar Seri Iskandar, Tronoh, Perak 31750, Malaysia;

    Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia;

    Subsurface Technology, PETRONAS Research Sdn. Bhd., Kajang, Selangor, Malaysia;

    Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia;

    Subsurface Technology, PETRONAS Research Sdn. Bhd., Kajang, Selangor, Malaysia;

    Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Biodiesel; Alkoxylation; BF3; Cloud point; Pour point; Kinematic viscosity;

    机译：生物柴油烷氧基化;BF3;浊点;倾点运动粘度;

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