Abstract
The paper describes a new electro-chemical method called wet oxidation potential technique for determining the susceptibility of coal to spontaneous combustion. Altogether 78 coal samples collected from thirteen different mining companies spreading over most of the Indian coalfields have been used for this experimental investigation. Experiments have also been carried out for proximate and ultimate analyses of coal. Susceptibility index obtained from wet oxidation potential was correlated with intrinsic parameters of coal. It has been found that susceptibility index bears a good correlation with moisture content, volatile matter, oxygen, hydrogen and carbon content of coal.
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