A simplified model for SO2 generation during spontaneous combustion of coal gangue was put forward and validated using the measured data. Using proposed model, effects initial temperature inside fresh air supply on were discussed. The results showed that, higher could accelerate oxidation rate FeS2 increase maximum concentration SO2. If increased by about 37%, total 166%. Fresh had less signifi...

Immediately and accurately assessing the risk of coal spontaneous combustion taking targeted action are crucial steps in prevention control. A new model, AEM-AHP-LSTM, was proposed to solve weight calculation problem multiobjective evaluation process combustion. Firstly, key indicators were analyzed used as factors establish an system. Next, objective subjective weights calculated using AEM AHP...

The coal utilization in thermal power plants in Malaysia has increased significantly which produces an enormous amount of coal combustion by-product (CCBP) or coal ash and poses severe disposal problem. As each coal ash is distinct, this study presents the geochemistry of the coal ash, in particular fly ash, produced from the combustion of local coal from Kuching Sarawak, Malaysia. The geochemi...

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