Journal ArticleDOI
Model for coal oxidation kinetics. 1. Reaction under chemical control
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In this article, a triple-path coupled burn-off adsorption site was proposed to describe the oxidation of coal in a fixed-bed reactor under mild conditions, i.e. conditions which are useful in pretreatment for gasification.About:
This article is published in Fuel.The article was published on 1982-01-01. It has received 74 citations till now. The article focuses on the topics: Coal & Oxygen.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
Self-heating of coal and related materials: Models, application and test methods
John Carras,Brian C. Young +1 more
TL;DR: In this article, the authors discuss the current understanding of coal and coal mine waste dumps along with the status of a number of numerical models developed to predict coal self-heating behavior.
Journal ArticleDOI
Reaction pathway of coal oxidation at low temperatures: a model of cyclic chain reactions and kinetic characteristics
TL;DR: In this article, a series of cyclic chain reactions is presented to describe the oxidation mechanism during coal spontaneous combustion using quantum chemistry calculations, and three interactive modes of active orbitals and detailed reaction sequences of coal oxidation are proposed.
Journal ArticleDOI
Analysis of the mechanism of the low-temperature oxidation of coal
TL;DR: The mechanism of coal oxidation at low temperatures, i.e., below 100°C, was examined using measurements of the gases emitted from a bed of coal in an isothermal flow reactor as discussed by the authors.
References
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Journal ArticleDOI
The structure and chemistry of solid surfaces
Henry Leidheiser,Kamil Klier +1 more
TL;DR: In this paper, Trenary et al. combined information from atomically resolved images of surfaces obtained with scanning tunneling microscopy (STM) with spectroscopic information obtained with the technique of reflection absorption infrared spectroscopy (RAIRS).
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The oxidation of bituminous coal—I Development of a mathematical model
TL;DR: In this article, a general rate expression based on a dual-path reaction model was developed for the oxidation of coal under mild conditions such as are useful in pretreatment for gasification, and the effects on the oxidation rate of mass transfer, particle surface, oxygen partial pressure, and temperature were considered and incorporated into the derived rate expression.
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The oxidation of bituminous COAL—II experimental kinetics and interpretation
TL;DR: In this paper, an experimental kinetic study was made on the oxidation of bituminous coal and the results were used to test the mathematical model presented in Part I. Satisfactory agreement was observed between the data and the derived rate expressions, which included a proposed mechanism change above 230°C.
Journal ArticleDOI
The adsorption of oxygen on brown coal char
TL;DR: In this article, the adsorption of oxygen on degassed brown coal char has been investigated gravimetrically in the temperature range 25°-200°C and at pressures up to 1 atm.