Inhibiting effect of CO2 on the oxidative combustion thermodynamics of coal

The effect of carbon dioxide and oxygen concentration on thermal behavior of coal oxidation and combustion of coal were investigated using an STA449F3 thermal analysis experiment.

Study on Influencing Factors of Thermal Analysis Experiment on Coal Oxidation and Spontaneous Combustibility

To ensure the accuracy and stability of results of coal oxidation and spontaneous combustion in the process of thermal analysis experiment, the speed and time of coal oxidation must be moderate, and the characteristic parameters in the oxidation process can be fully reflected. Thermal analysis experiment at different heating rates, with several particle sizes and different sample quality, Huangling coal sample as the research object, were carried out in this paper. Results showed that the particle size of 0.075 mm to 0.109 mm, sample quality of 5 mg and the heating rate of 10 K•min-1could ensure the fully oxidation and pyrolysis of coal, under which conditions coal spontaneous combustion characteristics could be reflected by the characteristic temperatures.