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Gasification temperature measurement with flame emission spectroscopy

机译：用火焰发射光谱法测量气化温度

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摘要

This paper presents the results of temperature measurements inside the CanmetENERGY pilot scale entrained flow gasification facility by means of an optical sensor based on flame emission spectroscopy (FES). In the present work a cooled, purged, fibre optic probe inserted into the gasifier reactor, through an access port at one end and coupled to a small portable commercial spectrometer at the other end, collected radiation from the gasifier flame. The acquired spectra were analyzed to yield temperatures representing the reaction chamber region lying within an angle of 8.8° enclosing the central axis of the probe. In the absence of a flame when radiation was acquired only from the hot enclosure, spectrally derived temperatures were in the same range as those recorded by wall mounted thermocouples (TE). When a flame was present spectral temperatures generally differed from the TE temperatures. Analysis of the spectra after the run yielded very high temperatures during certain periods of data acquisition indicating various types of gasifier burner malfunction. The thermocouples did not record similar high temperatures during any of the gasifier burner malfunction events. Examination of the gasifier after shut down, due to failure of a thermocouple, confirmed a malfunction had occurred during the operational period. These results show that FES derived temperatures are useful for monitoring gasifier performance. The data was further analyzed to explore the usefulness of other flame spectral features such as Na and OH emission for gasifier flame diagnostics.
机译：本文介绍了通过基于火焰发射光谱（FES）的光学传感器在CanmetENERGY中型规模夹带流化气化设施内进行温度测量的结果。在本工作中，经过冷却，吹扫的光纤探头通过一端的入口插入气化炉反应器，并在另一端连接到小型便携式商用光谱仪，收集了来自气化炉火焰的辐射。分析所获得的光谱以产生代表反应室区域的温度，该温度位于围绕探针中心轴的8.8°角内。在没有火焰的情况下，仅从热的外壳中获取辐射时，光谱得出的温度与壁挂式热电偶（TE）记录的温度在同一范围内。当存在火焰时，光谱温度通常不同于TE温度。运行后对光谱的分析在某些数据采集期间产生了很高的温度，表明各种类型的气化炉燃烧器发生故障。在任何气化炉燃烧器故障事件期间，热电偶均未记录类似的高温。由于热电偶故障，在关闭后检查气化炉，确认在运行期间发生了故障。这些结果表明，FES得出的温度对于监测气化炉性能非常有用。对数据进行了进一步分析，以探索其他火焰光谱特征（如Na和OH排放）对气化炉火焰诊断的有用性。

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  • 来源
    《Fuel》 |2014年第15期|579-587|共9页
  • 作者

    Thangam Parameswaran; Robin Hughes; Peter Gogolek; Patrick Hughes;

  • 作者单位

    Natural Resources Canada, CanmetENERGY, 1 Haanel Drive, Nepean, Ontario K1A 1M1, Canada;

    Natural Resources Canada, CanmetENERGY, 1 Haanel Drive, Nepean, Ontario K1A 1M1, Canada;

    Natural Resources Canada, CanmetENERGY, 1 Haanel Drive, Nepean, Ontario K1A 1M1, Canada;

    Natural Resources Canada, CanmetENERGY, 1 Haanel Drive, Nepean, Ontario K1A 1M1, Canada;

  • 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

    Optical probe; Spectroscopy; Flame; Gasification; Temperature;

    机译：光学探头光谱学;火焰;气化;温度;

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