Inhibition mechanism of spontaneous combustion by nano-sized complex inhibitor for Chinese lignite in low-temperature oxidation

2019 ◽  
Vol 208 (1) ◽  
pp. 29-40
Author(s):  
Ruizhi Chu ◽  
Jiaxin Wu ◽  
Xianliang Meng ◽  
Yongzhou Wan ◽  
Zhenyong Miao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Spontaneous Combustion ◽  
Inhibition Mechanism ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation

B-Mode Grey Relational Analysis of Surface Functional Groups Change Rules in Coal Spontaneous Combustion

2011 ◽  
Vol 236-238 ◽  
pp. 762-766 ◽  
Author(s):  
Wei Qing Zhang ◽  
Shu Guang Jiang ◽  
Lan Yun Wang ◽  
Zheng Yan Wu ◽  
Hao Shao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Functional Groups ◽  
Grey Relational Analysis ◽  
Spontaneous Combustion ◽  
Surface Functional Groups ◽  
Low Temperature Oxidation ◽  
Coal Spontaneous Combustion ◽  
Temperature Oxidation ◽  
Relational Analysis ◽  
Grey Relational

Based on the results of Fourier Transform Infrared Spectroscopy (FTIR) test of surface functional groups of different coal samples in low-temperature oxidation, the quantitative variation between functional groups and temperature was analyzed by B-mode grey relational analysis. According to the grey B-mode degrees and orders, a summary is given that: 1)the aromatic ketone and aldehyde carbonyl groups are mostly produced during the process of coal oxidation and the oxygen-containing functional groups existed mainly in the form of stable ether bond; 2)the methylene groups make major contribution to coal spontaneous combustion, so that the methylene structures should be disposed firstly in order to suppress coal spontaneous combustion effectively; 3)the degree range of gas coal is the largest, which shows that the process of gas coal spontaneous combustion is mostly affected by active groups to some extent. These quantitative results will be helpful to find the functional groups affecting deeply the process of low-temperature oxidation of coal.

Experiment Research of Coal’s Spontaneous Combustion Characters

2014 ◽  
Vol 1077 ◽  
pp. 66-70
Author(s):  
Yan Min Zheng ◽  
Jin Feng Zhang
Keyword(s):  
Low Temperature ◽  
Spontaneous Combustion ◽  
Control Measures ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Spontaneous Combustion Of Coal ◽  
Prevention And Control Measures ◽  
And Control ◽  
Dsc Curves ◽  
Heat Released

On the basis of physical oxygen uptake, use the instrument to identify the spontaneous combustion of Yang quan coal, and combination the insulation oxide of coal as well as the TG-DSC experiment to analysis of low-temperature oxidation of coal, though the DSC curves, combined with the insulation oxide experimental to analysis the size of the heat. In the end, we can come to the conclusion about the law and the different temperature parameters of the low-temperature oxidation. At the same time, the temperature when a large number of heat released by coals oxidation were also known ,and laid a theoretical foundation to develop prevention and control measures for the spontaneous combustion of coal mines.

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