Journal ArticleDOI
Coal weathering and laboratory (artificial) coal oxidation
TLDR
In this article, the effect of coal weathering and laboratory (artificial) oxidation on the microscopic appearance of coal, its microstructure as well as coal optical properties is discussed.About:
This article is published in International Journal of Coal Geology.The article was published on 2017-02-15. It has received 43 citations till now. The article focuses on the topics: Coal combustion products & Coal.read more
Citations
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Changes in the chemical structure of low rank coal after low temperature oxidation or demineralisation by acid treatment: Analysis by FTIR and UV fluorescence
TL;DR: In this paper, structural changes in low-rank coal after natural oxidation or acid (HCl/HF) demineralization have been studied, mainly with a decrease in aliphatic structures and an increase in the oxygenated species.
Journal ArticleDOI
Assessment of spontaneous combustion status of coal based on relationships between oxygen consumption and gaseous product emissions
TL;DR: In this paper, the relationship between oxygen consumption and gaseous product emissions during coal self-heating was studied, and an evaluation index was proposed to assess the state of coal spontaneous combustion.
Journal ArticleDOI
Critical particle size analysis of gas emission under high-temperature oxidation of weathered coal
TL;DR: In this article, the effects of particle size on gases emitted from weathered coal under high-temperature oxygen deficiency were investigated, and the results revealed the different experimental phenomena of the coal sample of each particle size.
Journal ArticleDOI
Effect of Nitric Acid Modification on Characteristics and Adsorption Properties of Lignite
TL;DR: In this article, the pore structure and surface properties of modified lignite were evaluated by static nitrogen adsorption, X-ray diffraction, Scanning electron microscopy, Fourier transform infrared spectroscopy, zeta potential, and Xray photoelectron spectroscopic analysis.
Journal ArticleDOI
Models of coke quality prediction and the relationships to input variables: A review
TL;DR: In this paper, a review of existing models for the prediction of various measures of coke quality, with a particular emphasis on coke strength after reaction (CSR) and the related coke reactivity index (CRI), is presented.
References
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Book
Stach's Textbook of coal petrology
TL;DR: The origin of coal, its petrographic constitution, changes in the macerals during coalification, techniques of coal petrology and their application to problems of palaeobotany, geology, oil and gas prospecting, coal assessment, coal evaluation, and fuel technology are discussed in this article.
Journal ArticleDOI
Concerning the Application of FT-IR to the Study of Coal: A Critical Assessment of Band Assignments and the Application of Spectral Analysis Programs
Paul C. Painter,Randy W. Snyder,Michael Starsinic,Michael M. Coleman,Deborah W. Kuehn,Alan Davis +5 more
TL;DR: In this article, the problems associated with the application of FT-IR to the characterization of coal structure are critically discussed and the controversies concerning band assignments are considered and it is concluded that the strong 1600 cm−1 band can be assigned to an aromatic ring stretching mode that in most coals is intensity enhanced by the presence of phenolic groups.
Book
Coal: Typology - Physics - Chemistry - Constitution
TL;DR: Coal chemistry: The action of solvents on coal and the action of oxidizing agents on coal Action of air and molecular oxygen on coal as mentioned in this paper, and the "grand processes" of coal utilization.
Book
Coal--typology, chemistry, physics, constitution
TL;DR: In this article, a typology of coal from the points of view of economy, technology, geology, petrology, chemistry, and physics is presented, with a statistical constitution analysis and information obtained on the change during carbonization.
Journal ArticleDOI
Methane and carbon dioxide adsorption–diffusion experiments on coal: upscaling and modeling
TL;DR: In this article, a bidisperse modeling approach was proposed for the sorption kinetics of CO2 and CH4 in coal and enhanced coalbed methane (ECBM) production in dry and moisture-equilibrated states.