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Qualitative and quantitative ATR-FTIR analysis and its application to coal char of different ranks

Andrew O. Odeh

Andrew O. Odeh. Qualitative and quantitative ATR-FTIR analysis and its application to coal char of different ranks[J]. 燃料化学学报(中英文), 2015, 43(02): 129-137.
引用本文: Andrew O. Odeh. Qualitative and quantitative ATR-FTIR analysis and its application to coal char of different ranks[J]. 燃料化学学报(中英文), 2015, 43(02): 129-137.
Andrew O. Odeh. Qualitative and quantitative ATR-FTIR analysis and its application to coal char of different ranks[J]. Journal of Fuel Chemistry and Technology, 2015, 43(02): 129-137.
Citation: Andrew O. Odeh. Qualitative and quantitative ATR-FTIR analysis and its application to coal char of different ranks[J]. Journal of Fuel Chemistry and Technology, 2015, 43(02): 129-137.

Qualitative and quantitative ATR-FTIR analysis and its application to coal char of different ranks

详细信息
    通讯作者:

    Andrew O. Odeh, Tel: +27182991991, Fax:+27866545434, E-mail: odehandy@yahoo.com.

  • 中图分类号: TQ533

Qualitative and quantitative ATR-FTIR analysis and its application to coal char of different ranks

Funds: Supported by the South African Research Chairs Initiative of the Department of Science and Technology and National Research Foundation of South Africa (Coal Research Chair Grant No. 86880).
  • 摘要: This paper analyzes the coal to char stages of char formation of six coals of different ranks by using Fourier transform infrared coupled with attenuated total reflectance (ATR-FTIR). The chars were obtained by coal pyrolysis carried out at temperature range of 450 ~700. The data obtained shows the pragmatic disappearance of the aliphatic hydrogen content with increasing char formation temperature. Numerical evaluation of the spectra enabled the determination of aromaticity, fa. The aromaticity was found to be between 0. 66 ~0. 79 for lignite, 0. 75 ~0. 90 for sub-bituminous, 0. 84 ~1. 00 for low volatile bituminous, 0. 83 ~ 1. 00 for high volatile bituminous, 0. 94 ~1. 00 for semi-anthracite, and 0. 97 ~1. 00 for anthracite respectively. With increasing rank of coal samples, spectra exhibit rising aromaticity and enhanced condensation of aromatic rings, whereas the aliphatic chain lengths decrease.
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出版历程
  • 收稿日期:  2014-08-12
  • 修回日期:  2014-11-30
  • 刊出日期:  2015-02-28

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