Spectroscopy and Spectral Analysis, Volume. 41, Issue 11, 3363(2021)

FTIR Characterization of Chemical Structures Characteristics of Coal Samples With Different Metamorphic Degrees

Ting-gui JIA1、*, Xun LI1、1; *;, Guo-na QU1、1;, Wei LI3、3;, Hai-fei YAO3、3; 4; 5;, and Ting-fang LIU6、6;
Author Affiliations
  • 11. Institute of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou 014010, China
  • 33. Mine Intelligent Ventilation Division of China Coal Research Institute, Beijing 100013, China
  • 66. Shaanxi Coal Group Shenmu Zhangjiamao Mining Co., Ltd., Yulin 719000, China
  • show less
    Figures & Tables(12)
    FTIR spectra of coal samples with different metamorphic degrees
    Schematic diagram of the ortho hydroxyl group of the active group of the side chain
    Fitting results of FTIR spectra of hydroxyl in coal samples with different metamorphic degrees(a): HL lignite; (b): Non stick coal; (c): Gas coal;(d): HZ1/3 coking coal; (e): BJ anthracite
    Fitting results of FTIR spectra of aliphatic hydrocarbon structure in coal samples with different metamorphic degrees(a): HL lignite; (b): Non stick coal; (c): Gas coal;(d): HZ1/3 coking coal; (e): BJ anthracite
    Fitting results of FTIR spectra of oxygen-containing functional groups in coal samples with different metamorphic degrees(a): HL lignite; (b): Non stick coal; (c): Gas coal;(d): HZ1/3 coking coal; (e): BJ anthracite
    Fitting results of FTIR spectra of aromatic hydrocarbons in coal samples with different metamorphic degrees(a): HL lignite; (b): Non stick coal; (c): Gas coal;(d): HZ1/3 coking coal; (e): BJ anthracite
    • Table 1. Proximate analysis and element analysis of coal samples

      View table
      View in Article

      Table 1. Proximate analysis and element analysis of coal samples

      煤样名称工业分析/%元素分析/%
      水分灰分挥发分
      HL褐煤21.658.0545.8961.284.7232.451.420.13
      LW不粘煤8.695.5931.3569.824.4723.141.361.21
      LW气煤0.793.3641.1083.285.266.141.553.77
      HZ1/3焦煤1.3034.5131.0081.494.5412.241.330.40
      BJ无烟煤1.2519.585.7890.442.424.020.762.36
    • Table 2. Peak fitting relative content of aliphatic hydrocarbon in coal samples with different metamorphic degrees

      View table
      View in Article

      Table 2. Peak fitting relative content of aliphatic hydrocarbon in coal samples with different metamorphic degrees

      煤样编号CH3
      对称伸缩
      振动/%
      CH2
      对称伸缩
      振动/%
      CH伸缩
      振动
      /%
      CH3对称
      伸缩振动
      /%
      CH2对称
      伸缩振动
      /%
      HL褐煤13.58138.49115.7955.47326.660
      LW不粘煤11.97139.06413.4414.29131.233
      LW气煤12.25738.1918.1923.38137.979
      HZ1/3焦煤13.42337.5179.9017.69631.463
      BJ无烟煤17.02844.11810.2169.05619.582
    • Table 3. Calculation of structural parameters of aliphatic hydrocarbons in coal samples

      View table
      View in Article

      Table 3. Calculation of structural parameters of aliphatic hydrocarbons in coal samples

      煤样编号A2 924A2 954A(CH2)/A(CH3)
      HL褐煤1.9130.6752.834
      LW不粘煤1.3020.3993.263
      LW气煤3.7951.2183.116
      HZ1/3焦煤2.5350.9072.795
      BJ无烟煤0.5700.2202.591
    • Table 4. Assignment of oxygen-containing functional groups in coal

      View table
      View in Article

      Table 4. Assignment of oxygen-containing functional groups in coal

      峰位/cm-1归属
      1 727芳香酯
      1 696不饱和羧酸中C=O伸缩振动
      1 629共轭羰基伸缩振动
      1 579~1 502芳香环或稠环中C=C伸缩振动
      1 443甲基反对称变形振动与亚甲基剪式振动
      1 389甲基对称弯曲振动
      1 330~1 172酚中C—O伸缩振动
      1 097芳基醚中—C—O—伸缩振动
      1 037烷基醚中C—O—C伸缩振动
      1 011灰分
    • Table 5. Calculation of structural parameter (farC)

      View table
      View in Article

      Table 5. Calculation of structural parameter (farC)

      煤样编号A3 000~2 800A900~700H/CfarC
      HL褐煤4.9700.9960.9240.572
      LW不粘煤3.3331.3000.7680.693
      LW气煤9.9372.7620.7580.671
      HZ1/3焦煤6.7572.0510.6690.715
      BJ无烟煤1.2922.1240.3210.933
    • Table 6. Calculation of structural parameter(DOC)

      View table
      View in Article

      Table 6. Calculation of structural parameter(DOC)

      煤样编号A900~700A1 572~1 502DOC
      HL褐煤0.9969.570.104
      LW不粘煤1.3008.6420.15
      LW气煤2.7627.1240.388
      HZ1/3焦煤2.0515.3690.382
      BJ无烟煤2.1241.5621.36
    Tools

    Get Citation

    Copy Citation Text

    Ting-gui JIA, Xun LI, Guo-na QU, Wei LI, Hai-fei YAO, Ting-fang LIU. FTIR Characterization of Chemical Structures Characteristics of Coal Samples With Different Metamorphic Degrees[J]. Spectroscopy and Spectral Analysis, 2021, 41(11): 3363

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Orginal Article

    Received: Feb. 17, 2021

    Accepted: --

    Published Online: Dec. 17, 2021

    The Author Email: Ting-gui JIA (jtg2000@126.com)

    DOI:10.3964/j.issn.1000-0593(2021)11-3363-07

    Topics