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Forecasts of Chemical, Physical, and Utilization Properties of Coal for Technical and Economic Evaluation of Coal Seams.

Authors
Gomez-M; Donaven-DJ
Source
NTIS: PB 233 428 :127 pages
Link
NIOSHTIC No.
10009191
Abstract
A computerized moving average technique was developed to interpolate coal seam characteristics between sample points. The interpolative method coupled with multivariate regression analysis and simulation procedures was used to forecast coal properties not readily obtained from an analysis of drill core samples. Coal property forecasts were of two kinds: (1) specific mine property forecasts that are suitable for mine product control and yield a good approximation of the local variation along both the vertical and horizontal axes of the seam, and (2) regional estimates where much of the local seam variation is smoothed out, but the general trends are maintained. Forecasts of the volatile matter, ash, total sulfur, and the heating value for part of the Pittsburgh seam located in Ohio, Pennsylvania, and West Virginia were in good agreement with independent evaluation data. Spatial configuration for preparation characteristics, particularly, the effect of crushing on sulfur release, low- and high-temperature, carbonization properties, the hardgrove grindability index, the coal hardness index, gasification variables, and hydrogenation factors were constructed for the same area of the Pittsburgh seam. These forecasts may be developed from drill core data collected in the exploration phase of mining. The results are useful for mine design, economic analyses, energy forecasts, utilization studies, mine product control, and environmental control and programing.
Publication Date
19740101
Document Type
IH; Report of Investigations
Fiscal Year
1974
NTIS Accession No.
PB-233428
NTIS Price
A08
Identifying No.
RI 7842
NIOSH Division
DRC;
Source Name
NTIS: PB 233 428
State
OH; PA; WV;
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