Quantitative characterization of coal properties using bidirectional diffuse reflectance spectroscopy

The 0.3–26 μm (33,000–385 cm −1) reflectance spectra of the <45 μm fractions of a series of coal samples ranging from lignite to anthracite were analyzed in conjunction with compositional information to derive spectral–compositional–structural relationships. The reflectance spectra, particularly...

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Bibliographic Details
Published inFuel (Guildford) Vol. 82; no. 18; pp. 2239 - 2254
Main Author Cloutis, Edward A
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.12.2003
Elsevier
Subjects
Applied sciences
Coal
Coal and derived products
Energy
Exact sciences and technology
Fuels
Reflectance spectroscopy
Structure, chemical and physical properties
Reflectance spectroscopy
Coal
Characterization
Spectrometry
Lignite
Aromaticity
Vitrinite
Reflectance
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Summary:The 0.3–26 μm (33,000–385 cm −1) reflectance spectra of the <45 μm fractions of a series of coal samples ranging from lignite to anthracite were analyzed in conjunction with compositional information to derive spectral–compositional–structural relationships. The reflectance spectra, particularly in the 1.8–4 μm (5500–2500 cm −1) region exhibit a number of absorption features attributable to both the organic and inorganic components. Quantitative spectral–compositional relationships were found which permit the derivation of properties such as aromaticity, total aliphatic, aromatic content, moisture content, volatile content, fixed carbon abundance, fuel ratio, carbon content, nitrogen abundance, H/C ratio, and vitrinite reflectance. In general, all absorption bands become less intense, and overall reflectance decreases with increasing rank.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0016-2361
1873-7153
DOI:10.1016/S0016-2361(03)00209-6