Articles written in Journal of Earth System Science
Volume 116 Issue 2 April 2007 pp 137-142
Volatile displacement, which measures the difference between calculated and experimental volatile matter, is indicative of abnormality in coals which may be related to petrological or chemical parameters. The volatile displacement (𝛿 $v$) values of Meghalaya coals were calculated from their chemical analyses. Correlations of volatile displacement ($\delta v$) with parameters such as carbon, hydrogen, moisture, oxygen, oxygen plus sulphate sulphur, oxygen plus pyritic sulphur, oxygen plus organic sulphur and total sulphur were studied. An approximately linear relationship exists only between $\delta v$ and moisture, and $\delta v$ and total sulphur, and not between other parameters. Plots on Seyler’s chart indicate the coals as perhydrous to orthohydrous. The linear relationship with total sulphur indicates that the coals may have become abnormal mainly due to the marine environment of deposition and weathering.
Volume 118 Issue 2 April 2009 pp 179-180
Volume 129, 2020
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