Volatile material in coal: effect of inherent mineral matter

Volatile decomposition products originating from the mineral phase of coal were found to contribute up to 45% of the total amount of volatile material in coal (as determined by ISO method 562). The magnitude of this contribution was found to be directly related to the maceral composition of coal. It...

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Bibliographic Details
Published in:Fuel (Guildford) 1991-03, Vol.70 (3), p.471-473
Main Authors: Slaghuis, J.H., Ferreira, L.C., Judd, M.R.
Format: Article
Language:English
Subjects:
Applied sciences
ash
Coal and derived products
Energy
Exact sciences and technology
Fuels
pyrolysis
Structure, chemical and physical properties
volatile matter
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Summary:Volatile decomposition products originating from the mineral phase of coal were found to contribute up to 45% of the total amount of volatile material in coal (as determined by ISO method 562). The magnitude of this contribution was found to be directly related to the maceral composition of coal. It was established that these minerals are associated mainly with the inertinite macerals of coal. Inertinite macerals often form the main constituent of the ROM coals produced in South Africa. Coal types consisting mainly of the so-called reactive macerals, namely vitrinite and exinite, appear to contain few if any of these minerals, despite high overall ash values.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(91)90141-V