Correlation analysis of the change law of index gas and active functional groups in the process of high-temperature spontaneous combustion of minerals in the Fushun West Mine.
- 1Xi’an University of Science and Technology (XUST), School of Safety Science and Engineering, China (cjm8868@163.com)
- 2Xi’an University of Science and Technology (XUST), School of Safety Science and Engineering, China (zhaojingyu2014@126.com)
- 3Xi’an University of Science and Technology (XUST), School of Safety Science and Engineering, China (songjiajia07@sina.com)
- 4Xi’an University of Science and Technology (XUST), School of Safety Science and Engineering, China (1057979134@qq.com)
- 5Xi’an University of Science and Technology (XUST), School of Safety Science and Engineering, China (812565877@qq.com)
- 6Xi’an University of Science and Technology (XUST), School of Safety Science and Engineering, China (2367531816@qq.com)
- 7Xi’an University of Science and Technology (XUST), School of Safety Science and Engineering, China (1377021824@qq.com)
The spontaneous combustion of underground minerals causes huge property losses and ecological damage. Coal and oil shale are co associated minerals in the Fushun West Mine, and both have the ability of oxidative spontaneous combustion. To study the effect of microstructure changes on the macroscopic gas product concentration during the mineral oxidation spontaneous combustion process in the Fushun West Mine, this study used a high-temperature temperature-programmed test to obtain the change trend of gas product concentration in different oxidation stages of minerals. Using Fourier transform infrared spectroscopy (FTIR) technology, the changes in active functional groups of surface molecules during the process of mineral oxidation and spontaneous combustion were identified. Finally, using the gray correlation degree, correlation analysis between the concentration of gas products and the concentration of active functional groups in different oxidation stages was carried out. The key reactive functional groups affecting mineral spontaneous combustion were identified. The essential reason for the change in the gas product was revealed.
How to cite: Chang, J.-M., Zhao, J.-Y., Song, J.-J., Zhang, T.-H., Hang, G., Chi, Z.-L., and Wang, C.: Correlation analysis of the change law of index gas and active functional groups in the process of high-temperature spontaneous combustion of minerals in the Fushun West Mine., EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-7139, https://doi.org/10.5194/egusphere-egu23-7139, 2023.
