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Effect of thermal treatment on the interaction of brown coal and water: a nuclear magnetic resonance study

✍ Scribed by Leo J. Lynch; David S. Webster

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
580 KB
Volume
61
Category
Article
ISSN
0016-2361

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✦ Synopsis

Proton nuclear magnetic resonance ('H n.m.r.) has been used to measure changes in the water-binding capacity of bed-moist brown coal lithotypes subjected to heat treatment. A rapid reduction in the coalwater interaction was found to occur at treatment temperatures > 420K. A Pale lithotype was found to lose more water-binding capacity than a Dark lithotype of the same coal for a given heat treatment. It is suggested from the present work that n.m.r. testing could be useful for the classification of brown coals.

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