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Experimental and kinetic modeling study of ethyl butanoate oxidation in a laminar tubular plug flow reactor

机译:层状管式塞流反应器中丁酸乙酯氧化的实验和动力学模型研究

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摘要

This investigation examines the experimental and the kinetic modeling of the oxidation of ethyl butanoate (EB) selected as model molecule for fatty acid ethyl esters (FAEE). New experimental information of EB oxidation was generated from a laminar tubular plug flow reactor (PFR) operating at atmospheric pressure, under dilute conditions, over the temperature range 500-1200 K, with various equivalence ratios ranging from 0.5 to 1.6, and at residence times varying between 0.65 and 1.40 s under STP conditions. Concentration profiles of the reactants, stable intermediates, and final products, identified by GC/ MS, were measured by infrared ray absorption and GC/TCD-FID analyses. Experiments of EB oxidation carried out in the tubular PFR were simulated using a detailed chemical kinetic oxidation mechanism (117 species and 1035 reactions) proposed in a previous work [Hakka et al. Int J Chem Kin 2010;42:226] and automatically generated from an improved version of EXGAS software. Globally, good agreement was observed between experimental and simulated results, confirming the validity of the proposed model for EB oxidation. Reaction flux and sensitivity analyses allowed to determine the main reaction pathways involved in the investigated conditions of EB oxidation.
机译:这项研究检查了被选为脂肪酸乙酯(FAEE)模型分子的丁酸乙酯(EB)氧化的实验和动力学模型。 EB氧化的新实验信息来自层流式管状推流反应器(PFR),该反应器在大气压下,在稀薄条件下,在500-1200 K的温度范围内,当量比从0.5到1.6以及停留时间下运行在STP条件下变化范围为0.65至1.40 s。通过红外吸收和GC / TCD-FID分析,测量了通过GC / MS鉴定的反应物,稳定的中间体和最终产物的浓度曲线。管状PFR中的EB氧化实验是使用先前工作中提出的详细的化学动力学氧化机制(117种和1035个反应)进行模拟的[Hakka等。 Int J Chem Kin 2010; 42:226],并从改进版本的EXGAS软件自动生成。在全球范围内,观察到实验和模拟结果之间的良好一致性,证实了所提出的EB氧化模型的有效性。反应通量和灵敏度分析可以确定涉及EB氧化条件的主要反应途径。

著录项

  • 来源
    《Fuel》 |2011年第11期|p.3237-3253|共17页
  • 作者单位

    Laboratoire Reactions et Genie des Proc&dH, Nancy-Universiti, UPR CNRS 3349, 1 rue Grandville, BP 20 451, 54001 Nancy, France;

    Laboratoire Reactions et Genie des Proc&dH, Nancy-Universiti, UPR CNRS 3349, 1 rue Grandville, BP 20 451, 54001 Nancy, France;

    Laboratoire Reactions et Genie des Proc&dH, Nancy-Universiti, UPR CNRS 3349, 1 rue Grandville, BP 20 451, 54001 Nancy, France;

    Laboratoire Reactions et Genie des Proc&dH, Nancy-Universiti, UPR CNRS 3349, 1 rue Grandville, BP 20 451, 54001 Nancy, France;

  • 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

    oxidation; chemical kinetics; biodiesel; faee; ethyl butanoate;

    机译:氧化化学动力学生物柴油费丁酸乙酯;

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