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Measurements of normal boiling points of fatty acid ethyl esters and triacylglycerols by thermogravimetric analysis

机译：热重分析法测定脂肪酸乙酯和三酰基甘油的正常沸点

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摘要

At present, a large number of studies of biodiesel production process using simulation packages are being developed. In these studies, vegetable oils and biodiesels are characterized in the software through representative compounds because of they are not in the compounds database of commercial simulators. With the aim to achieve a successfully characterization in these kinds of software, some properties of the substances must be available. The normal boiling point (NBP) is the most important property due to the fact that this property along with group contribution methods allows other properties calculation such as, e.g., critical properties and temperature dependency properties. In this work, a thermogravimetric analysis (TGA) method for rapid measurement of normal boiling points of two triacylglycerols and four ethyl esters, i.e., triolein, tripalmitin, ethyl oleate, ethyl palmitate, ethyl linoleate and ethyl ricinole-ate, was used. Nowadays, in the open literature exists few data available about ethyl esters properties; hence, the results obtained here will contribute in the proposal, analysis, and evaluation of ethyl esters (biodiesel) virtual plants using reliable simulation packages. In addition, a more accurate characterization of compounds and therefore more accurate simulation results can be obtained when they are used.
机译：目前，正在开发使用模拟软件包的生物柴油生产过程的大量研究。在这些研究中，由于植物油和生物柴油不在商业模拟器的化合物数据库中，因此它们通过代表性化合物在软件中进行表征。为了在这些类型的软件中成功地进行表征，必须提供这些物质的某些属性。正沸点（NBP）是最重要的性质，这是因为该性质与基团贡献方法一起可以进行其他性质的计算，例如临界性质和温度依赖性性质。在这项工作中，使用了热重分析（TGA）方法来快速测量两种三酰基甘油和四种乙酯的正常沸点，即三油精，三棕榈精，油酸乙酯，棕榈酸乙酯，亚油酸乙酯和蓖麻油酸酯。如今，公开文献中几乎没有关于乙酯性质的数据。因此，这里获得的结果将有助于使用可靠的模拟程序包对乙基酯（生物柴油）虚拟植物进行建议，分析和评估。另外，当使用化合物时，可以获得更准确的化合物表征，因此可以获得更准确的模拟结果。

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  • 来源
    《Fuel》 |2012年第1期|p.158-161|共4页
  • 作者

    Carlos M. Garcia Santander; Sandra M. Gomez Rueda; Nivea de Lima da Silva; Celso L de Camargo; Theo G. Kieckbusch; M. Regina Wolf Maciel;

  • 作者单位

    Laboratory of Separation Process Development (WPS), Department of Chemical Processes (DPQ), Faculty of Chemical Engineering, State University of Campinas (UNICAMP), Av. Albert Einstein 500, Campinas 13083-852, Brazil;

    Laboratory of Fermentative and Enzymatic Process Engineering (LEPFE), Department of Chemical Processes (DPQ), Faculty of Chemical Engineering, State University of Campinas (UNICAMP), Av. Albert Einstein 500, Campinas 13083-852, Brazil;

    Laboratory of Separation Process Development (WPS), Department of Chemical Processes (DPQ), Faculty of Chemical Engineering, State University of Campinas (UNICAMP), Av. Albert Einstein 500, Campinas 13083-852, Brazil;

    Laboratory of Product and Process Characterization (LCPP), Department of Thermal Fluid Dynamics (DTF), Faculty of Chemical Engineering, State University of Campinas (UNICAMP), Av. Albert Einstein 500, Campinas 13083-852, Brazil;

    Laboratory of Product and Process Characterization (LCPP), Department of Thermal Fluid Dynamics (DTF), Faculty of Chemical Engineering, State University of Campinas (UNICAMP), Av. Albert Einstein 500, Campinas 13083-852, Brazil;

    Laboratory of Separation Process Development (WPS), Department of Chemical Processes (DPQ), Faculty of Chemical Engineering, State University of Campinas (UNICAMP), Av. Albert Einstein 500, Campinas 13083-852, Brazil;

  • 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

    triacylglycerols; normal boiling point; simulation package; process simulation; aspen plus; ethyl esters;

    机译：三酰基甘油;正常沸点模拟包过程模拟;白杨加;乙酯;

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