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首页> 外文期刊>Fuel >A comparative analysis of kinetic parameters from TGDTA of Jatropha curcas oil, biodiesel, petroleum diesel and B50 using different methods
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A comparative analysis of kinetic parameters from TGDTA of Jatropha curcas oil, biodiesel, petroleum diesel and B50 using different methods

机译：不同方法对麻疯树油，生物柴油，石油柴油和B50的TGDTA动力学参数的比较分析

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摘要

Fatty Acid Methyl Ester (FAME) obtained from the transesterification reaction of refined Jatropha curcas oil (JCO) and methanol using homogeneous catalysts NaOH and KOH were investigated. Gas chromato-graphic analysis were performed to determine fatty acid profile of the JCO and percentage conversion of JCO to FAME. Thermogravimetric experiments were conducted in nitrogen and air medium at constant heating rates 10 ℃/min and constant flow of gases 20 ± 0.5 ml/min and calculated the weight losses with increasing temperature. The TGA thermograms were analyzed for fuels under test viz. JCO, FAME_(KOH), FAME_(NaOH)H, petroleum diesel and B50 blends. The calculations of the different parameters applicable for kinetic study purposes were carried out using three different methods available in literature viz. Redfern method, Friedman method and Differential method (Direct Arrhenius method), respectively. A comparative thermogravimetric and differential thermal analysis (TGDTA) of JCO, diesel, FAME and B50 can predict the thermal behavior and combustion characteristics. It has been observed that the refined JCO has the highest value (49.97 kJ/mol, Differential method) and most stable thermally and during combustion while petroleum diesel has the lowest activation energy (9.11 kj/mol, Friedman method) and easily combustible as compared to biodiesel or blends. On the basis of the kinetic analysis it can also be concluded that all the three methods are equally effective to predict the combustion behavior of the fuel although there are variations in the quantitative value of activation energy.
机译：研究了使用均相催化剂NaOH和KOH从精制麻疯树油（JCO）与甲醇的酯交换反应中获得的脂肪酸甲酯（FAME）。进行气相色谱分析以确定JCO的脂肪酸谱和JCO转化为FAME的百分比。在氮气和空气介质中以10℃/ min的恒定加热速率和20±0.5 ml / min的恒定气体流量进行热重实验，并计算出随温度升高的重量损失。在测试中分析了TGA热分析图的燃料。 JCO，FAME_（KOH），FAME_（NaOH）H，石油柴油和B50混合物。适用于动力学研究目的的不同参数的计算是使用文献中提供的三种不同方法进行的。雷德芬法，弗里德曼法和微分法（直接阿伦尼乌斯法）。 JCO，柴油，FAME和B50的比较热重分析和差热分析（​​TGDTA）可以预测热行为和燃烧特性。已经观察到，精制的JCO具有最高的值（49.97 kJ / mol，微分法），在热和燃烧过程中最稳定，而石油柴油的活化能最低（9.11 kj / mol，Friedman方法），与之相比易燃生物柴油或混合物。在动力学分析的基础上，还可以得出结论，尽管活化能的定量值存在变化，但是这三种方法在预测燃料的燃烧行为方面都同样有效。

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  • 来源
    《Fuel》 |2013年第7期|217-224|共8页
  • 作者

    A.P. Singh Chouhan; Neetu Singh; A.K. Sarma;

  • 作者单位

    Sardar Swaran Singh National Institute of Renewable Energy, 12KM Stone, Jalandhar Kapurthala Road, Punjab 144 607, India;

    Dr. BR Ambedkar NIT Jalandhar, Jalandhar, India;

    Sardar Swaran Singh National Institute of Renewable Energy, 12KM Stone, Jalandhar Kapurthala Road, Punjab 144 607, India;

  • 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

    Reined JCO; TGDTA analysis; FAME; Kinetic methods; Kinetic parameters;

    机译：精制的JCO;TGDTA分析;名声动力学方法;动力学参数;

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