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首页> 美国政府科技报告 >Data Base for the Analysis of Compositional Characteristics of Coal Seams and Macerals. Final Report: Part 4. Characterization of the Organic Structure of the Lower Kittanning Coal Seam Using Fourier-Transform Infrared Spectroscop
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Data Base for the Analysis of Compositional Characteristics of Coal Seams and Macerals. Final Report: Part 4. Characterization of the Organic Structure of the Lower Kittanning Coal Seam Using Fourier-Transform Infrared Spectroscop

机译：煤层和煤层成分特征分析数据库。最终报告：第4部分。使用傅里叶变换红外光谱仪表征下Kittanning煤层的有机结构

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The Lower Kittanning coal seam covers a vast area of the Allegheny Plateau in Pennsylvania, Ohio, West Virginia, and Maryland. Throughout its extent, the chemistry of the coal varies considerably. Variabiilty in the organic constituents of the Lower Kittanning seam was determined by Fourier transform infrared spectroscopy and analysis of optical properties. Thirty-three whole-seam channel samples were collected in western Pennsylvania and eastern Ohio. From 24 of these samples, vitrinite concentrates were obtained by hand picking the bright bands in the coal. Reflectances in air and oil immersion were determined for the vitrinite concentrates for five wavelengths of visible light. Refractive and absorption indices were calculated from the reflectance measurements and dispersion curves were constructed for these four variables. The channel samples and vitrinite concentrates were analyzed by Fourier transform infrared spectroscopy (FTIR). The relations between regions of the FTIR spectra and some liquefaction and fluid properties of coals are also described. The underlying geologic controls of the variation in the characteristics of this coal seam are examined. (ERA citation 09:001783)

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