Results 211 to 220 of about 26,113 (267)
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Spontaneous Combustion in Coals - A Panacea
Journal of the Geological Society of India, 2004Abstract Lower Gondwana coal samples from the Ib-valley, the Talcher coalfield and the Raniganj coalfield were compared with the Tertiary coals of Upper Assam, Nagaland and Arunachal Pradesh by their chemical data in relation to crossing point temperature, petrography and rank.
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The Development of Microporous in Coal by Spontaneous Combustion
Advanced Materials Research, 2014Basing on coal and the oxygen evolving complex theory, the method of study on the spontaneous combustion by analysis the microporous in coal has been established in this article. By the electron microscope, the process of microporous volume changeing with the temperature gradually increased is observed.
Jian You Di +4 more
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International Journal of Coal Preparation and Utilization
To efficiently isolate oxygen and block free radical reactions， sodium alginate (SA), sodium polyacrylate (PAAS), attapulgite (ATP), and melatonin (MLT) were selected to develop an oxygen-insulating physicochemical synergistic inhibitor.
Qianru Du +6 more
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To efficiently isolate oxygen and block free radical reactions， sodium alginate (SA), sodium polyacrylate (PAAS), attapulgite (ATP), and melatonin (MLT) were selected to develop an oxygen-insulating physicochemical synergistic inhibitor.
Qianru Du +6 more
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Spontaneous combustion in beds of coal particles
Symposium (International) on Combustion, 1989This paper describes a simple experimental technique to determine the ignition temperature of various cylinder-shaped beds (diameter 17–160 mm, height 10–80 mm) of a South African coal and it reports the application of thermal ignition models in interpreting and extrapolating the small scale results.
TOGNOTTI, LEONARDO +2 more
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Spontaneous combustion of coal: a Mössbauer approach
Fuel, 1992Abstract A 57 Fe Mossbauer spectroscopic study was carried out at 300 K to study the self-combustion of coal. Hyperfine parameters such as isomer shift, quadrupole splitting and the total internal magnetic field of 57 Fe nuclei were used to identify various iron-bearing species during different stages of the process.
K.L. Shrivastava +2 more
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Environmental science and pollution research international, 2023
Chuandong Liu +3 more
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Chuandong Liu +3 more
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Effect of coalification on spontaneous combustion of coals
International Journal of Coal Geology, 1990Abstract A preliminary survey of the frequency of occurrence of fire due to spontaneous combustion in the different seams of the Raniganj Coalfield showed the possibility of a relationship between coalification and spontaneous combustion of coals. In this context, a systematic study was undertaken. For the purpose of this investigation, samples were
D. Chandra, Y.V.S. Prasad
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Fuel, 2019
The gel-stabilized foam was prepared successfully by forming gel structure in the bubble film using thickening agent (TA) and crosslinking agent (CLA). The viscosity characteristic, foamability, stability, and microstructure of gel-stabilized foam were ...
Quanlin Shi, B. Qin
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The gel-stabilized foam was prepared successfully by forming gel structure in the bubble film using thickening agent (TA) and crosslinking agent (CLA). The viscosity characteristic, foamability, stability, and microstructure of gel-stabilized foam were ...
Quanlin Shi, B. Qin
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Theories on Spontaneous Combustion of Coal
1993Kömürün kendiliğinden yanması, tüm kömür üreticisi ülkelerin karşılaştığı en önemli sorunlardan biridir. Bu konunun nedenini saptama çalışmaları daha önceki yüzyılda başlamıştır. Bu sorunun nedeni hakkında çeşitli kuramlar ileri sürülmüş olup bu kuramlar şu şekilde sıralanabilir: - pirit kuramı, - bakteri kuramı, - oksidasyon kuramı ve - nem kuramı. Bu
Eroğlu, Nehar, Gouws, Michael John
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