Data base for the analysis of compositional characteristics of coal seams and macerals. Quarterly technical progress report, February-April 1982
The basic objectives of this program are, first, to understand the systematic relationships between the properties of coals, and, second to determine the nature of the lateral and vertical variability in the properties of a single seam. During this quarter, thirteen whole seam channel samples were collected from the Western Region of the Interior Province. Eighty-four coal samples and 352 data printouts were provided to the coal research community. The effects of predrying samples in a vacuum oven prior to performing ultimate analyses were assessed. No significant changes were observed. Calibration curves necessary for the quantitative analysis of quartz, calcite and pyrite by x-ray diffraction were constructed. The relationships between liquefaction yield and total sulfur and kaolinite contents were investigated. Statistical analysis indicates that an increase in total sulfur and/or a decrease in kaolinite may have a positive effect on liquefaction conversion. Multivariate statistical analyses have been performed on a set of 317 samples using inorganic components as variables. A set of 19 vitrinite concentrates has been characterized by /sup 13/C NMR with cross polarization and magic-angle spinning. Correlations of aromatic carbon content of the vitrinite concentrates with rank and with fixed carbon are observed and are in good agreement with previously reported results. The combination of /sup 13/C NMR measurements with FTIR results allows the calculation of coal parameters related to the concept of a mean structural unit. Mean maximum and apparent minimum reflectance has been measured at five wavelengths in the visible spectrum on thirty-three vitrinite concentrates.
- Research Organization:
- Pennsylvania State Univ., University Park (USA). Coal Research Section
- DOE Contract Number:
- AC22-80PC30013
- OSTI ID:
- 6143087
- Report Number(s):
- DOE/PC/30013-9; ON: DE83013476
- Country of Publication:
- United States
- Language:
- English
Similar Records
Data base for the analysis of compositional characteristics of coal seams and macerals. Quarterly technical progress report, May-July 1980
Data base for the analysis of compositional characteristics of coal seams and macerals. Quarterly technical progress report, February-April 1981
Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
COAL
COAL DEPOSITS
COAL RANK
COAL SEAMS
COHERENT SCATTERING
CORRELATIONS
DATA
DATA BASE MANAGEMENT
DATA COMPILATION
DENSITY
DIFFRACTION
ENERGY SOURCES
FOSSIL FUELS
FOURIER TRANSFORMATION
FUELS
GEOLOGIC DEPOSITS
INFORMATION
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
MACERALS
MANAGEMENT
MATERIALS
MINERAL RESOURCES
MINERALOGY
NMR SPECTRA
NUMERICAL DATA
OPTICAL PROPERTIES
PETROGRAPHY
PHYSICAL PROPERTIES
RESOURCES
SCATTERING
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
TRANSFORMATIONS
X-RAY DIFFRACTION