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The brown-coal/water system: Part 1, The effect of temperature on the evolution of water from brown coal

โœ Scribed by D.J. Allardice; D.G. Evans

Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
602 KB
Volume
50
Category
Article
ISSN
0016-2361

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โœฆ Synopsis

The vacuum desorption of water from brown coal has been investigated at temperatures from 30ยฐC to 120ยฐC. The amount of water which can be desorbed after prolonged evacuation to a constant weight increases with increasing temperature, and is accompanied by the evolution of carbon dioxide at temperatures above 60ยฐC. These effects are attributed to the thermal decomposition of functional groups in the coal. The relevance of these findings to the interpretation of moisture isotherms and analytical moisture determinations is discussed.

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