Data base for the analysis of compositional characteristics of coal seams and macerals. Quarterly technical progress report, February-April 1981

Technical Report · Sat Aug 01 04:00:00 EDT 1981

OSTI ID:6151331

Davis, A; Suhr, N H; Spackman, W; Painter, P C; Walker, P L; Given, P H

The first objective of the program is to understand the systematic relationships between the properties of coals and the second is to determine the nature of lateral and vertical variability in the properties of a single seam. Four coal samples showed significant decrease in calorific value during storage over a two-year period; the lower the calorific value and the higher the moisture of the samples, the greater was the decrease. Ninety-three coal samples and 454 selected printouts of coal data were provided on request to the coal research community. Maceral analysis of 5-cm subsections of column samples of the Lower Kittanning seam reveal some differences in the profiles of the seam collected from two different environmental settings. General trends in carbon, hydrogen, oxygen and nitrogen contents of the Lower Kittanning seam of western Pennsylvania are presented. Comparison to previously reported areal variability of seam thickness, ash, sulfur, volatile matter yield and vitrinite reflectance for the same seam is made. Controls of sedimentation and rates of coalification are discussed in relation to the areal variability which has been observed. Studies were made on the effects of oxidation during storage on the thermoplastic properties of coal, including the influence of particle size and different methods of storage. Reflectance analysis of 24 vitrinite concentrates at different wavelengths in the visible region has been completed. Plots of out-of-plane bending modes derived from FTIR show a clear increase with increasing rank; however, no trends are discernible for aromatic and aliphatic GM stretching intensities. The results of sorption of methanol and water on several coals and macerals at 25/sup 0/C using gravimetric and pycnometric techniques are reported.

• Research Organization: Pennsylvania State Univ., University Park (USA). Coal Research Section
• DOE Contract Number: AC22-80PC30013
• OSTI ID: 6151331
• Report Number(s): DOE/PC/30013-5; ON: DE81031977
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
& Peat-- Properties & Composition
011000* -- Coal
Lignite
& Peat-- Reserves
Geology
& Exploration
ALCOHOLS
CALORIFIC VALUE
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
COAL
COAL DEPOSITS
COAL SEAMS
COALIFICATION
COMBUSTION PROPERTIES
DATA BASE MANAGEMENT
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION SYSTEMS
INFRARED SPECTRA
MACERALS
MANAGEMENT
MATERIALS
MECHANICAL PROPERTIES
METHANOL
MINERAL RESOURCES
NORTH AMERICA
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROGRAPHY
PHYSICAL PROPERTIES
PLASTICITY
REFLECTIVITY
RESOURCES
SORPTIVE PROPERTIES
SPECTRA
STORAGE
SURFACE PROPERTIES
USA
VARIATIONS
WATER