Coal oxidation at low temperatures is the heat source liable for the self-heating and
spontaneous combustion of coal. This phenomenon has imposed severe problems in coal …

Spontaneous combustion of coal in underground coal mine is a long-standing thermal
dynamic hazard. The hazard is harmful in diverse aspects: causing loss of coal resource …

The microstructure, thermal behaviour (30° C-300° C) and thermophysical properties (30° C-
300° C) of raw and water-soaked air-dried coal samples were analysed through scanning …

Coal fire is the major hazard to energy security and the environment in the world. Liquid CO
2 and liquid N 2 are widely used in coal mines. However, the spontaneous combustion …

Oxygen chemisorption on the surface of coal plays a key role in the low-temperature
oxidation of coal. Due to the complex molecular structure of coal, it is difficult to fully analyse …

The thermal decomposition of oxygen-containing functional groups produces CO, CO 2 and
active sites that accelerate coal spontaneous combustion. Study on this process is of great …

The low temperature oxidation of coal is a contradictory and unified dynamic process of
coexisting mass and heat transfer. The thermophysical properties are crucial during coal …

To investigate pore structure, free radical concentrations, thermal behavior and FTIR micro-
characteristics of the re-oxidation coal, we used Scanning Electron Microscope (SEM) …

The coal after low-temperature pyrolysis is more prone to self-heating and spontaneous
combustion. To study the original heat source, this paper conducted sequentially isothermal …

Although the spontaneous combustion latency provides the initial heat for coal self-heating,
the thermal behavior of the process has been scarcely investigated in the literature. The …