Influence of Fractal Pores on the Oxidation Behavior of Brown Coal

We show that both chemical and physical changes induced in Victorian brown coal through thermal processing in the presence of a range of gases has a profound effect on its oxidation behavior. In particular, the appearance of a low-temperature DTA peak which is believed to be related to the propensit...

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Bibliographic Details
Published in:Energy & fuels 1999-09, Vol.13 (5), p.965-968
Main Authors: McMahon, P. J, Snook, I. K, Moss, S. D, Johnston, P. R
Format: Article
Language:English
Subjects:
Applied sciences
Brown coal
Energy
Exact sciences and technology
Fuels
Processing
Wood. Peat. Brown coal
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Summary:We show that both chemical and physical changes induced in Victorian brown coal through thermal processing in the presence of a range of gases has a profound effect on its oxidation behavior. In particular, the appearance of a low-temperature DTA peak which is believed to be related to the propensity of the coal to spontaneously combust is strongly correlated with the extent of the pore surface as determined by the fractal surface measure obtained from small-angle X-ray scattering measurements.
ISSN:0887-0624
1520-5029
DOI:10.1021/ef980215i