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New method for sulphur concentration measurements in coal and char

✍ Scribed by Peter R. Solomon; Arch V. Manzione


Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
1019 KB
Volume
56
Category
Article
ISSN
0016-2361

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✦ Synopsis


A new method has been developed for determining the organic sulphur concentration and the stoichiometry of iron sulphide compounds in coals and chars. The method employs a scanning electron microprobe which separates the contribution from different sulphur forms by examining the differences in their spatial distribution. The method is rapid, requires only small samples, and is non-destructive; so results may be repeated. In addition, a knowledge of the sulphide stoichiometry in a char and the original sulphide concentration in the coal yields the sulphide concentration in the char. Application of this method for sulphur measurements in more than thirty coals has yielded results in good agreement with results obtained with ASTM methods.


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