Journal ArticleDOI
Further studies of coal oxidation
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In this article, Fourier transform infrared spectroscopy (FT-i.r) was used to investigate the low-temperature oxidation of coal and the results were correlated to changes in the thermoplastic properties of the coal measured by a Gieseler plastometer.About:
This article is published in Fuel.The article was published on 1983-12-01. It has received 151 citations till now.read more
Citations
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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.
Journal ArticleDOI
Analysis of carboxyl group in coal and coal aromaticity by Fourier transform infrared (FT-IR) spectrometry
TL;DR: In this paper, the content of COOH group in coal was calculated from the FT-IR analysis with the aid of the molar absorption coefficient, which had been derived using various aromatic carboxylic acids.
Journal ArticleDOI
Study of Chemical Structure Changes of Chinese Lignite upon Drying in Superheated Steam, Microwave, and Hot Air
Arash Tahmasebi,Arash Tahmasebi,Jianglong Yu,Jianglong Yu,Yanna Han,Fengkui Yin,Sankar Bhattacharya,David Stokie +7 more
TL;DR: In this article, the Fourier transform infrared (FTIR) spectra of raw and dried lignite samples were curve-fitted to a series of bands in aliphatic hydrogen (3000-2800 cm-1) and carbonyl absorption (1850-1500 cm -1) zones.
Journal ArticleDOI
Low temperature oxidation studies of dried new zealand coals
TL;DR: In this article, the chemical and thermal responses of six dried coals on exposure to a flow of oxygen or air were studied using isothermal differential thermal analysis (DTA) and temperature-programmed in situ diffuse reflectance infrared Fourier Transform spectroscopy (DRIFTS).
References
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Journal ArticleDOI
The Scope and Limitations of Curve Fitting
TL;DR: In this paper, a review of the various factors involved in curve fitting of vibrational band systems is presented, with particular reference to vibrational bands, and other types of overlapping band systems encountered in analytical work are considered in less detail.
Journal ArticleDOI
Liquefaction of coal in hydrogen-donor and non-donor vehicles
TL;DR: In this article, coal was converted to benzene-soluble, liquid products through a reaction path which appears to involve thermal cleavage of chemical bonds in the coal (so-called depolymerization), and free radicals formed pyrolytically were stabilized in the early stages by autogenous hydrogen transfer, and in later stages by abstraction of hydrogen from the hydrogen-donating tetralin.
Book
An introduction to coal technology
TL;DR: In this paper, the origins, formation, and properties of coal are discussed. And the action of solvents on coal is discussed. But they do not discuss the role of coal in coal processing.
Journal ArticleDOI
Fourier transform infrared study of the variation in the oxidation of a coking coal
TL;DR: In this article, Fourier transform infrared spectroscopy was applied to a quantitative analysis of the low-temperature ash from ten consecutive channel samples along an exploration adit through a high-volatile coking coal seam.
Journal ArticleDOI
Low Temperature Air Oxidation of Caking Coals: Fourier Transform Infrared Studies
TL;DR: Fourier transform infrared spectroscopy has been used to characterize the oxidation of a coking coal and the results demonstrate that the most important initial products of oxidation are carbonyl and carboxylic acid groups.