An Investigation on the Bursting Liability of Oxidized Coal and the Coupling Mechanism of Rock Burst and Spontaneous Combustion

2021 ◽  
Author(s):  
Rongkun Pan ◽  
Zhihui Ma ◽  
Minggao Yu ◽  
Chengdong Su ◽  
Jiangkun Chao
Keyword(s):  
Rock Burst ◽  
Spontaneous Combustion ◽  
Coupling Mechanism ◽  
Oxidized Coal

Thermal analysis of spontaneous combustion behavior of partially oxidized coal

2016 ◽  
Vol 104 ◽  
pp. 218-224 ◽  
Author(s):  
Jun Deng ◽  
Jingyu Zhao ◽  
Yanni Zhang ◽  
Anchi Huang ◽  
Xiangrong Liu ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Spontaneous Combustion ◽  
Combustion Behavior ◽  
Oxidized Coal

scholarly journals Thermogravimetric and infrared spectroscopic studies of the spontaneous combustion characteristics of different pre-oxidized lignites

RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32476-32489 ◽  
Author(s):  
Teng Ma ◽  
Xiaokun Chen ◽  
Xiaowei Zhai ◽  
Ya'e Bai
Keyword(s):  
Ftir Spectroscopy ◽  
Spontaneous Combustion ◽  
Spectroscopic Studies ◽  
Combustion Characteristics ◽  
Characteristic Parameters ◽  
Oxidized Coal ◽  
Infrared Spectroscopic

The characteristic parameters of the spontaneous combustion of raw coal and pre-oxidized coal were analyzed by STA, FTIR and in situ FTIR spectroscopy.

Comparative of thermokinetic behaviors and four functional groups variations from spontaneous combustion of coal and its pre-oxidized

2020 ◽  
Author(s):  
Jun Deng ◽  
Hui-Fei Lv ◽  
Lei Bai ◽  
Dajiang Li
Keyword(s):  
Spontaneous Combustion ◽  
Characteristic Temperature ◽  
Thermal Reaction ◽  
Stage I ◽  
Side Chains ◽  
Heating Rates ◽  
Oxidized Coal ◽  
Two Samples ◽  
Residual Coal ◽  
Physical And Chemical

<p>In China, coal spontaneous combustion (CSC) is seriously disasters in gobs during coal seam groups mining, the secondary or multiple oxidation processes of residual coal occur inevitably, severely increasing the risk of coal fires. This paper focused on the thermal reaction behavior of two samples of raw coal and degrees of pre-oxidized (Oxi-80 °C, Oxi-130 °C, and Oxi-180 °C), we determined their characteristics of physical and chemical via thermogravimetric-Fourier transform infrared spectroscopy (TG-FTIR) with the heating rates being 1.0, 2.0, 5.0, and 10.0 °C min<sup>−1</sup>. According to the characteristic temperature, the CSC process could be divided into three stages of oxidation (stage I), combustion (stage II), and thermal residual (stage III). The results indicated that for pre-oxidized coal the length of aliphatic side chains was shorter, and the number of branched aliphatic side chains was lower than that of the raw coal. The kinetic models revealed the mechanism category was changed between raw coal and pre-oxidized coal. However, the heating rate exerted little influence on the mechanism category of each stage, particularly in stage I. The average values of apparent activation energy for the pre-oxidized coal samples were lower than that of raw coal. Therefore, the pre-oxidized coal samples required less energy to activate and more readily caused spontaneous combustion than raw coal at certain stages.</p>

Spontaneous Combustion

1877 ◽  
Vol 4 (81supp) ◽  
pp. 1285-1287
Author(s):  
Charles W. Vincent
Keyword(s):  
Spontaneous Combustion

Spontaneous combustion of hay

1963 ◽  
Vol 13 (7) ◽  
pp. 291-302
Author(s):  
H. P. Rothbaum
Keyword(s):  
Spontaneous Combustion

EVALUATION OF TISSUE STEROID BINDING IN VITRO

1971 ◽  
Vol 68 (1_Suppl) ◽  
pp. S223-S246 ◽  
Author(s):  
C. R. Wira ◽  
H. Rochefort ◽  
E. E. Baulieu
Keyword(s):  
Protein Binding ◽  
Binding Sites ◽  
Experimental System ◽  
Specific Protein ◽  
Coupling Mechanism ◽  
Target Tissue ◽  
Protein Binding Sites ◽  
Definition Of ◽  
Hormone Specificity

ABSTRACT The definition of a RECEPTOR* in terms of a receptive site, an executive site and a coupling mechanism, is followed by a general consideration of four binding criteria, which include hormone specificity, tissue specificity, high affinity and saturation, essential for distinguishing between specific and nonspecific binding. Experimental approaches are proposed for choosing an experimental system (either organized or soluble) and detecting the presence of protein binding sites. Techniques are then presented for evaluating the specific protein binding sites (receptors) in terms of the four criteria. This is followed by a brief consideration of how receptors may be located in cells and characterized when extracted. Finally various examples of oestrogen, androgen, progestagen, glucocorticoid and mineralocorticoid binding to their respective target tissues are presented, to illustrate how researchers have identified specific corticoid and mineralocorticoid binding in their respective target tissue receptors.

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