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首页> 外文期刊>Combustion and Flame >Experimental and kinetic study on the low temperature oxidation and pyrolysis of formic acid in a jet-stirred reactor
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Experimental and kinetic study on the low temperature oxidation and pyrolysis of formic acid in a jet-stirred reactor

机译：喷射搅拌反应器中甲酸低温氧化与热解的实验动力学研究

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摘要

A comprehensive experimental and kinetic study on the low temperature oxidation and pyrolysis of formic acid was conducted. Species profiles measurements were performed in a jet-stirred reactor (JSR) at the temperature range of 600-1100 K under atmospheric pressure, with a fixed residence time of 2.0 s and for the equivalence ratios ranging from 0.5 to infinity (pyrolysis). High-level quantum calculation was used to obtain the accurate rate coefficients of missing reactions in Glarborg model. A detailed kinetic mechanism, derived from Glarborg model, has been developed based on high-level quantum calculation and validated with the species profiles obtained in this work and laminar flame speeds presented in our group. Reaction pathway and sensitivity analysis were investigated to get the deep insight of the oxidation of formic acid via the modified model. The results showed that unimolecular fuel decomposition reactions dominated the pyrolysis process while H abstraction reactions with the further consumption of the radicals are more important in the oxidation of formic acid. In addition, H abstraction reactions via HO2 become important at relatively low temperature. (C) 2020 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
机译：进行了对低温氧化和甲酸热解的综合实验性和动力学研究。物种型材在大气压下在600-1100 k的温度范围内进行测量，在大气压下，固定停留时间为2.0 s，并且对于0.5至无穷大的等效比率（热解）。使用高液体量子计算来获得Glarborg模型中缺失反应的准确率系数。源自Glarborg模型的详细动力学机制已经基于高液位量子计算开发，并验证了在本工作中获得的物种型材以及我们组中提出的层流速度。研究了反应途径和敏感性分析，以通过改性模型获得甲酸氧化的深深。结果表明，单分子燃料分解反应主导了热解过程，而H氧化在甲酸的氧化方面具有更重要的升性反应。此外，HO2的H抽象反应在相对低的温度下变得重要。 （c）2020燃烧研究所。由elsevier Inc.出版的所有权利保留。

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  • 来源
    《Combustion and Flame》 |2021年第1期|77-87|共11页
  • 作者

    Yin Geyuan; Xu Jiawei; Hu Erjiang; Gao Qunfei; Zhan Haochen; Huang Zuohua;

  • 作者单位

    Xi An Jiao Tong Univ State Key Lab Muliphase Flow Power Engn Xian Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Muliphase Flow Power Engn Xian Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Muliphase Flow Power Engn Xian Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Muliphase Flow Power Engn Xian Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Muliphase Flow Power Engn Xian Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Muliphase Flow Power Engn Xian Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Formic acid; Low temperature oxidation; Pyrolysis; Rate coefficient calculation; Chemical kinetic model;

    机译：甲酸;低温氧化;热解;速率系数计算;化学动力学模型;

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