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Relation between coal properties and the change in hydrogen content on coalification

Relation between coal properties and the change in hydrogen content on coalification Coalification is divided into three periods: with carbon contents of 75–87(88)%, 87(88)–93%, and 93–95% and corresponding hydrogen contents of 5.25 ± 0.25%, 5–3%, and <3%. The first period corresponds to Donetsk coal of ranks from D to K; the second to ranks K, OS, and T; and the third to T coal and the adjacent low-metamorphic anthracites. The maximum moisture content, the yield of volatiles, the clinkering properties, and the heat of combustion are plotted as a function of the hydrogen content in each period. In coal beds corresponding to the first period, there is no dehydrogenation, and therefore hydrogen in the organic mass cannot be the source of the methane present. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Coke and Chemistry Springer Journals

Relation between coal properties and the change in hydrogen content on coalification

Coke and Chemistry , Volume 54 (2) – May 24, 2011

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References (5)

Publisher
Springer Journals
Copyright
Copyright © 2011 by Allerton Press, Inc.
Subject
Chemistry; Industrial Chemistry/Chemical Engineering
ISSN
1068-364X
eISSN
1934-8398
DOI
10.3103/S1068364X11020074
Publisher site
See Article on Publisher Site

Abstract

Coalification is divided into three periods: with carbon contents of 75–87(88)%, 87(88)–93%, and 93–95% and corresponding hydrogen contents of 5.25 ± 0.25%, 5–3%, and <3%. The first period corresponds to Donetsk coal of ranks from D to K; the second to ranks K, OS, and T; and the third to T coal and the adjacent low-metamorphic anthracites. The maximum moisture content, the yield of volatiles, the clinkering properties, and the heat of combustion are plotted as a function of the hydrogen content in each period. In coal beds corresponding to the first period, there is no dehydrogenation, and therefore hydrogen in the organic mass cannot be the source of the methane present.

Journal

Coke and ChemistrySpringer Journals

Published: May 24, 2011

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