Petrographic and fluorescence spectral properties of liptinite and vitrinite coal macerals. Annual report Jan-Dec 82

Technical Report · Wed Jan 26 04:00:00 EST 1983

OSTI ID:5888587

Crelling, J C

The purpose of this study is to gain a better understanding of the properties of the various liptinite and vitrinite macerals. Because it is both expensive and very difficult to separate the various macerals from coal, the macerals will be studied in situ by quantitative fluorescence microscopy. This method has only recently been applied to the study of coal and has already lead to the discovery of new macerals, and a better understanding of coal rank and the coalification process. During this year the fluorescence microscopy system in the Coal Characterization Laboratory at SIUC has been greatly improved with the addition of a Ploem illuminator and a matching objective lens of high numerical aperture. The ability of the fluorescence microscopy system to process spectral data from coal macerals has also been improved by the interfacing of an Apple II computer dedicated to the task. In addition, the petrographic and chemical characterization of 13 samples of Herrin (No. 6) and 12 samples of Harrisburg-Springfield (No. 5) coal seams, has been nearly completed and 218 spectra on various macerals have been determined.

• Research Organization: Southern Illinois Univ., Carbondale (USA)
• OSTI ID: 5888587
• Report Number(s): PB-83-211938
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
CARBONACEOUS MATERIALS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
COAL
DECOMPOSITION
ENERGY SOURCES
FLUORESCENCE
FOSSIL FUELS
FUELS
LUMINESCENCE
MACERALS
MATERIALS
MICROSCOPY
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
PETROGRAPHY
PYROLYSIS
THERMOCHEMICAL PROCESSES