Journal ArticleDOI
Study on the relationship between microscopic functional group and coal mass changes during low-temperature oxidation of coal
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TLDR
In this article, the relationship between the changes in coal mass and in microscopic functional groups was explored based on two typical reactions of hydrogen elimination and oxygen addition involved in the oxidation process, and the computational formula to find the amount of reactive hydrogen atoms in the coal matrix involved in low temperature oxidation was derived.About:
This article is published in International Journal of Coal Geology.The article was published on 2017-02-15. It has received 115 citations till now. The article focuses on the topics: Coal & Energy value of coal.read more
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Study on oxidation and gas release of active sites after low-temperature pyrolysis of coal
TL;DR: In this paper, the authors conducted isothermal oxidation experiments on raw and pyrolyzed coal samples to investigate the influence of the content of oxygen-containing functional groups, pyroxene temperature, oxidation temperature, particle size, and pyrosene-oxidation times on the oxidation characteristics of coal samples.
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Risk forecasting for spontaneous combustion of coals at different ranks due to free radicals and functional groups reaction
TL;DR: In this paper, the reaction mechanism of spontaneous coal combustion and the indicators for forecasting this risk, reaction characteristics of free radicals and functional groups during low-temperature oxidation of coal with different ranks were analyzed by electron spin resonance and Fourier transform infrared (FTIR) spectroscopy.
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Kinetics and mechanisms of coal oxidation mass gain phenomenon by TG–FTIR and in situ IR analysis
TL;DR: In this article, a focus on the mass gain phenomenon of coal oxidation observed by thermogravimetric analysis, TG-FTIR and in situ IR experiments for a typical Jurassic coal in West China were carried out to identify the kinetics and mechanisms of coal oxidization, and it was concluded that the key functional groups for this typical coal oxidation mass gain were carboxyl and carbonyl.
Journal ArticleDOI
Study on the generation of active sites during low-temperature pyrolysis of coal and its influence on coal spontaneous combustion
TL;DR: In this article, the formation laws of active sites were studied through gas emission rules during isothermal pyrolysis of coal samples, and the influence of pyroleyzed coal at low temperatures on spontaneous combustion in following mining process was stimulated by the subsequent room-temperature oxidation and lowtemperature re-oxidation of the coal.
Journal ArticleDOI
Experimental investigation on using ionic liquid to control spontaneous combustion of lignite
TL;DR: In this article, a series of novel ionic liquids (ILs) were used as chemical inhibitors for coal spontaneous combustion (CSC) by using Fourier transform infrared spectroscopy and synchronous thermal analyser.
References
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Journal ArticleDOI
FTIR study of the evolution of coal structure during the coalification process
TL;DR: A series of coals varying in rank from peat to semi-anthracite was studied by Fourier Transform infrared spectroscopy (FTIR) and curve-fitting analysis in order to gain additional information on coal structure and the main structural changes that take place during the coalification process.
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Coal oxidation at low temperatures: oxygen consumption, oxidation products, reaction mechanism and kinetic modelling
TL;DR: In this article, the authors focus on the chemical reactions occurring during low-temperature oxidation of coal and develop a kinetic model to predict the self-heating and gas emission in coal seams.
Coal oxidation at low temperatures: oxygen consumption, oxidation products, reaction mechanism and kinetic modelling, Pages 487-513
José Luz Silveira,C. E. Tuna,Haihui Wang,Bogdan Z. Dlugogorski,Eric M. Kennedy,Soteris A. Kalogirou,T. Kodama +6 more
TL;DR: In this paper, the authors focus on the chemical reactions occurring during low-temperature oxidation of coal and develop a kinetic model to predict the self-heating and gas emission in coal seams.
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Coal fires in China over the last decade: A comprehensive review
TL;DR: In this paper, a review of coal fire research in China is presented, including fire detection, modeling, assessment of environmental and human health impacts as well as fire-fighting engineering.
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Characterization of chemical functional groups in macerals across different coal ranks via micro-FTIR spectroscopy
TL;DR: In this paper, Fourier transform infrared spectra of a suite of coals of varying rank from peat to anthracite were obtained via reflectance micro-FTIR and traditional KBr pellet techniques.