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Title: Coal quality trends and distribution of Title III trace elements in Eastern Kentucky coals

The quality characteristics of eastern Kentucky coal beds vary both spatially and stratigraphically. Average total sulfur contents are lowest, and calorific values highest, in the Big Sandy and Upper Cumberland Reserve Districts. Average coal thickness is greatest in these two districts as well. Conversely, the thinnest coal with the highest total sulfur content, and lowest calorific value, on average, occurs in the Princess and Southwest Reserve Districts. Several Title III trace elements, notably arsenic, cadmium, lead, mercury, and nickel, mirror this distribution (lower average concentrations in the Big Sandy and Upper Cumberland Districts, higher average concentrations in the Princess and Southwest Districts), probably because these elements are primarily associated with sulfide minerals in coal. Ash yields and total sulfur contents are observed to increase in a stratigraphically older to younger direction. Several Title III elements, notably cadmium, chromium, lead, and selenium follow this trend, with average concentrations being higher in younger coals. Average chlorine concentration shows a reciprocal distribution, being more abundant in older coals. Some elements, such as arsenic, manganese, mercury, cobalt, and, to a lesser extent, phosphorus show concentration spikes in coal beds directly above, or below, major marine zones. With a few exceptions, average Title III tracemore » element concentrations for eastern Kentucky coals are comparable with element distributions in other Appalachian coal-producing states.« less
Authors:
 [1] ;  [2]
  1. Kentucky Geological Survey, Lexington, KY (United States)
  2. Univ. of Kentucky, Lexington, KY (United States). Center for Applied Energy Research
Publication Date:
OSTI Identifier:
257214
Report Number(s):
CONF-950952--
TRN: IM9631%%420
Resource Type:
Book
Resource Relation:
Conference: 12. annual international Pittsburgh coal conference, Pittsburgh, PA (United States), 11-15 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Twelfth annual international Pittsburgh coal conference: Proceedings. Coal -- Energy and the environment; PB: 1248 p.
Publisher:
Pittsburgh Coal Conference, Pittsburgh, PA (United States)
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; KENTUCKY; COAL DEPOSITS; GEOCHEMISTRY; BITUMINOUS COAL; MULTI-ELEMENT ANALYSIS; SPATIAL DISTRIBUTION; SULFUR CONTENT; ASH CONTENT; CALORIFIC VALUE; BERYLLIUM; MERCURY; CADMIUM; COBALT; CHROMIUM; MANGANESE; ARSENIC; NICKEL; URANIUM; ANTIMONY; LEAD; SELENIUM; THORIUM; CHLORINE; PHOSPHORUS; COMPILED DATA