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Study on the reaction mechanism and kinetics of CO hydrogenation on a fused Fe-Mn catalyst

机译:CO氢化反应机理和动力学对熔融Fe-Mn催化剂的反应机理和动力学研究

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摘要

The kinetics of the CO hydrogenation reaction over a Fe-Mn fused catalyst was investigated in a fixed-bed micro-reactor under the following conditions: temperatures of 573-603 K, pressures of 1-15 bar, H-2/CO feed ratios of 0.7-3.4 and a space velocity of 4500 h(-1). A reaction rate equation for the supported Fe-Mn catalyst was derived on the basis of the Langmuir-Hinshelwood-Hougen-Watson and Eley-Rideal models. An activation energy of 105 +/- 3.7 kJ mol(-1) was obtained for the best fitted model. In addition, the power-law equation model was also evaluated for the experimental data. According to the power-law model, the activation energy was obtained as 95.5 +/- 2.5 kJ mol(-1). Furthermore, the effect of temperature on the reaction partial order was investigated with respect to the reactants, using four simple power law equations. Characterization of the catalyst was carried out using BET and XRD techniques.
机译:在下列条件下,在固定床微反应器中研究了CO氢化反应在Fe-Mn熔融催化剂上的动力学:温度为573-603k,1-15巴的压力,H-2 / CO饲料比 0.7-3.4的空速4500小时(-1)。 基于Langmuir-Hinshelwood-Hougen-Watson和Eley-rideal模型来得出支持的Fe-Mn催化剂的反应速率方程。 获得最佳拟合模型的105 +/- 3.7 kJ摩尔(-1)的激活能量。 此外,还评估了幂律方程模型的实验数据。 根据电力法模型,获得活化能量为95.5 +/- 2.5 kJ摩尔(-1)。 此外,使用四个简单的电力法律方程,研究了对反应物的温度对反应部分顺序的影响。 使用BET和XRD技术进行催化剂的表征。

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  • 来源
    《RSC Advances》 |2015年第115期|共13页
  • 作者单位

    Univ Sistan &

    Baluchestan Dept Chem Fac Sci Zahedan Iran;

    Univ Sistan &

    Baluchestan Dept Chem Fac Sci Zahedan Iran;

    Amirkabir Univ Technol Dept Chem Tehran Iran;

    Amirkabir Univ Technol Dept Chem Tehran Iran;

    Univ Sistan &

    Baluchestan Dept Chem Fac Sci Zahedan Iran;

    Univ Sistan &

    Baluchestan Dept Chem Fac Sci Zahedan Iran;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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