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首页> 外文期刊>Renewable energy >Preparation and kinetics study of biodiesel production from waste cooking oil using new functionalized ionic liquids as catalysts
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Preparation and kinetics study of biodiesel production from waste cooking oil using new functionalized ionic liquids as catalysts

机译：使用新型功能化离子液体作为催化剂，从废食用油中制备生物柴油的动力学研究

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摘要

In this work, 1,4-sultone and benzimidazolium-based ionic liquids (ILs) with four different anions were synthesized, and their structures were confirmed by nuclear magnetic resonance (NMR) and elemental analysis (CHNS). The acidity of the synthesized ILs was studied using Hammett acidity function and COSMO-RS. The waste cooking oil was used as a raw material for biodiesel production and their different fatty acids were determined by gas chromatography coupled with flame ionization detector (GC-FID). These four ILs, as catalysts, were screened and comparatively IL 3-methyl-1-(4-sulfo-butyl)-benzimidazolium trifluoromethanesulfonate [BSMBIM][CF3SO3] was selected for further detailed optimization study. This IL experimental efficiency results supported the Hammett acidity function and COSMO-RS study. The catalyst performance was studied and optimised the different parameters. The catalyst efficiency was studied in one and two-step reactions. [BSMBIM][CF3SO3] as a catalyst showed the esterification of waste cooking oil up to 78.13% in a single step reaction. Potassium hydroxide was used in the second step to trans-esterify the waste cooking oil up to 94.52%. The catalyst was reused for seven times with high-yield production. The obtained biodiesel was characterized by GC, NMR, FTIR, thermogravimetric (TGA) and their physicochemical properties were compared with the already established standards. The kinetic study of this transesterification reaction was evaluated and followed the first-order reaction mechanism. (C) 2017 Elsevier Ltd. All rights reserved.
机译：在这项工作中，合成了具有四个不同阴离子的1,4-磺酸内酯和苯并咪唑基离子液体（ILs），并通过核磁共振（NMR）和元素分析（CHNS）确认了它们的结构。使用Hammett酸度函数和COSMO-RS研究了合成ILs的酸度。废弃的食用油被用作生产生物柴油的原料，并通过气相色谱-火焰离子检测器（GC-FID）测定了它们的不同脂肪酸。筛选了这四种IL作为催化剂，并比较了IL 3-甲基-1-（4-磺基丁基）-苯并咪唑三氟甲磺酸盐[BSMBIM] [CF3SO3]用于进一步详细的优化研究。 IL实验效率的结果支持了Hammett酸度函数和COSMO-RS研究。研究了催化剂的性能并优化了不同的参数。在一步和两步反应中研究了催化剂的效率。作为催化剂的[BSMBIM] [CF3SO3]在一步反应中显示出废弃食用油的酯化率高达78.13％。第二步使用氢氧化钾对废食用油进行酯交换，最高可达94.52％。该催化剂可重复使用七次，产量高。通过GC，NMR，FTIR，热重（TGA）对所得生物柴油进行表征，并将其理化性质与已建立的标准进行比较。评价该酯交换反应的动力学研究，并遵循一级反应机理。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Renewable energy》 |2017年第ptab期|755-765|共11页
  • 作者

    Ullah Zahoor; Bustam M. Azmi; Man Zakaria; Khan Amir Sada; Muhammad Nawshad; Sarwono Ariyanti;

  • 作者单位

    Univ Teknol PETRONAS, Ctr Res Ion Liquids, Dept Chem Engn, Tronoh 31750, Malaysia|BUITEMS, Dept Chem, Takatu Campus, Quetta 87100, Pakistan;

    Univ Teknol PETRONAS, Ctr Res Ion Liquids, Dept Chem Engn, Tronoh 31750, Malaysia;

    Univ Teknol PETRONAS, Ctr Res Ion Liquids, Dept Chem Engn, Tronoh 31750, Malaysia;

    Univ Teknol PETRONAS, Ctr Res Ion Liquids, Dept Chem Engn, Tronoh 31750, Malaysia;

    COMSATS Inst Informat Technol, Interdisciplinary Res Ctr Biomed Mat, Lahore, Pakistan;

    Univ Teknol PETRONAS, Ctr Res Ion Liquids, Dept Chem Engn, Tronoh 31750, Malaysia;

  • 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

    Benzimidazole; Waste cooking oil; Biodiesel; Gas chromatography; Kinetic study;

    机译：苯并咪唑;废食用油;生物柴油;气相色谱;动力学研究;

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