Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Data base for the analysis of compositional characteristics of coal seams and macerals. Quarterly technical progress report for the period, May-July 1981. [USA; coal seams]

Technical Report ·
OSTI ID:5382478
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. Five whole seam channel samples were collected from Illinois. Eighty-three coal samples and 120 printouts were provided on request to the coal research community. The equation Q = 145 C + 610 H - 65 O - 20 where Q is the calorific value, and C, H and O are the carbon, hydrogen and oxygen contents, respectively, appears to provide the best means of estimating calorific value from ultimate analyses of coals in the Penn State Coal Data Base, regardless of the basis on which analyses are reported. Trends in the lateral variability of petrographic composition of Lower Kittanning seam samples are presented. Distinct trends in the composition and properties within a single coal seam enabled the areal changes in depositional environment and post-depositional metamorphic changes to be investigated. Descriptive univariate statistics and frequency distributions of the major elements in coal ash are presented. All whole seam channel samples with major element concentrations included in the data base have been used. Fe, Mg, Ca, Na, K, and S have different distributions in the major coal provinces. Bivariate analysis was performed on the FTIR data of 24 vitrinite concentrates. The possibility of using the information in a multivariate analysis is under study. Swelling of coals and vitrinite in methanol and water has been studied by comparing the sorption of these solvents using pycnometric and gravimetric techniques.
Research Organization:
Pennsylvania State Univ., University Park (USA). Coal Research Section
DOE Contract Number:
AC22-80PC30013
OSTI ID:
5382478
Report Number(s):
DOE/PC/30013-6; ON: DE82012356
Country of Publication:
United States
Language:
English