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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 spectroscopy and optical properties. [Vitrinite]

Technical Report ·
OSTI ID:5701057
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.
Research Organization:
Pennsylvania State Univ., University Park (USA). Coal Research Section
DOE Contract Number:
AC22-80PC30013
OSTI ID:
5701057
Report Number(s):
DOE/PC/30013-4; ON: DE84000539
Country of Publication:
United States
Language:
English