Acta Photonica Sinica, Volume. 52, Issue 3, 0352101(2023)

Research and Application of Flue Gas Ammonia Slip Detection Based on Tunable Diode Laser Absorption Spectroscopy(Invited)

Shunchun YAO1,2、*, Songjie GUO1, Yan YANG1, Jiatong LI1, and Zhimin LU1,2
Author Affiliations
  • 1School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, China
  • 2Guangdong Province Engineering Research Center of High Efficiency and Low Pollution Energy Conversion, Guangzhou 510640, China
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    Figures & Tables(11)
    Absorption spectrum distribution of NH3 and main components of flue gas(from HITRAN database)
    Schematic diagram of in-situ measurement type
    Schematic diagram of traditional sampling type
    Schematic diagram of the structure of the four absorption cells
    Schematic diagram of permeation tube type
    Schematic diagram of sampling measurement type
    Schematic diagram of sampling and measuring device
    Schematic and physical diagram of the absorption cell
    In-situ sampling and measuring device diagram
    • Table 1. Comparison of the advantages and disadvantages of four types of absorption cells

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      Table 1. Comparison of the advantages and disadvantages of four types of absorption cells

      Absorption cell typeAdvantagesDisadvantages
      White type1)Large aperture angle,suitable for general and laser light sources;2)Adjustable light path1)More reflectors used(3 pieces);2)Insufficient use of mirrors
      Herriott type1)Simple structure;2)Easy adjustment of light path1)light path fixation;2)Insufficient use of mirrors;3)Smaller aperture angle,suitable for laser light sources only
      Chernin type1)Large aperture angle,suitable for general and laser light sources;2)Adjustable light path;3)Fuller use of mirrors1)More reflectors used(5 pieces);2)Structural complexity;3)Larger volume
      Circular type1)Smaller size and compactness;2)Adjustable light path;3)Easy adjustment of light path1)More difficult to process
    • Table 2. Performance indicators of flue gas ammonia slip analyzer

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      Table 2. Performance indicators of flue gas ammonia slip analyzer

      ManufacturerCountryModelMeasuring wayDetection limit or sensitivity/ppmReference
      SIEMENSGermanyLDS 6In-situ0.157
      ABBGermanyAO2000-LS25In-situ0.358
      NEONorwayLaserGas™ Ⅱ SPIn-situ0.1559
      SERVOMEXBritainLaser 3 PlusIn-situ0.160
      SICKGermanyGM700Permeation tube0.361
      UNISEARCHCanadaLasIR RPIMs0.162
      JUGUANGChinaLGA-5500Sampling0.163
      XUEDILONGChinaSCS-900LSSampling0.2564
      DAFANGChinaDLGA-3000Sampling0.165
      ZETIANChinaGA-5000DNSampling0.3866
      GUANGLIChinaAEMS10In-situ sampling0.167
      XINYEChinaNLAM1512In-situ sampling0.168
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    Shunchun YAO, Songjie GUO, Yan YANG, Jiatong LI, Zhimin LU. Research and Application of Flue Gas Ammonia Slip Detection Based on Tunable Diode Laser Absorption Spectroscopy(Invited)[J]. Acta Photonica Sinica, 2023, 52(3): 0352101

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    Paper Information

    Category: Special Issue for Frontiers and Techniques of Laser Spectroscopy

    Received: Oct. 28, 2022

    Accepted: Dec. 2, 2022

    Published Online: Jun. 21, 2023

    The Author Email: YAO Shunchun (epscyao@scut.edu.cn)

    DOI:10.3788/gzxb20235203.0352101

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