Micro-Raman Spectroscopy of Selected Macerals of the Huminite Group: An Example from the Szczerców Lignite Deposit (Central Poland)

Lignite (ulminite reflectance Rr = 0.27%) from the Szczerców deposit (Central Poland) is dominated by huminite group macerals, containing a high proportion of attrinite and densinite. Densinite and ulminite are more abundant in small aromatic units than attrinite, which may result from their stronge...

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Bibliographic Details
Published inEnergies (Basel) Vol. 14; no. 2; p. 281
Main Authors Bielowicz, Barbara, Morga, Rafał
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2021
Subjects
attrinite
Banded structure
Clay
Coal
densinite
huminite
Lignite
Macerals
Minerals
Raman spectroscopy
Sediments
Spectrum analysis
Sulfur content
ulminite
Poland
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Summary:Lignite (ulminite reflectance Rr = 0.27%) from the Szczerców deposit (Central Poland) is dominated by huminite group macerals, containing a high proportion of attrinite and densinite. Densinite and ulminite are more abundant in small aromatic units than attrinite, which may result from their stronger gelification. The differences in Raman spectral characteristics between attrinite and ulminite are more pronounced than between attrinite and densinite. Fusinite, in comparison with the huminite group macerals, is composed of larger, more varied aromatic systems. The D4 (1190–1200 cm−1) and D5 bands (1280–1290 cm−1), most likely, correspond to different chemical structures, and their origin should be further investigated.
ISSN:1996-1073
1996-1073
DOI:10.3390/en14020281