Self-heating rate of torbanite from Bowen Basin, Queensland

Beamish, B. Basil and Beamish, Debra E. (2010). Self-heating rate of torbanite from Bowen Basin, Queensland. In: J. W. Beeston, Back in (the) Black: Proceedings of the Bowen Basin Symposium 2010. Bowen Basin Symposium 2010, Mackay, Qld., Australia, (1-6). 6-8 October 2010.

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Author Beamish, B. Basil
Beamish, Debra E.
Title of paper Self-heating rate of torbanite from Bowen Basin, Queensland
Conference name Bowen Basin Symposium 2010
Conference location Mackay, Qld., Australia
Conference dates 6-8 October 2010
Proceedings title Back in (the) Black: Proceedings of the Bowen Basin Symposium 2010
Place of Publication Mackay, Qld, Australia
Publisher The Geological Society Australia incorparated coal geology group
Publication Year 2010
Sub-type Fully published paper
ISBN 9780646543475
Editor J. W. Beeston
Start page 1
End page 6
Total pages 6
Language eng
Formatted Abstract/Summary
Adiabatic oven tests provide a simple and accurate
measure of the intrinsic spontaneous combustion
propensity of coal. Results from these tests on coal samples
from the Bowen Basin and Callide Basin show that coal
rank, mineral matter and coal type have significant effects
on self-heating rate. As rank increases from
sub-bituminous A to medium volatile bituminous, the R70
self-heating rate index value decreases by a factor of 50.
Increasing amounts of mineral matter in coal often lower
the self-heating rate due to a simple heat sink effect,
although there are instances where the mineral matter has
a more complex physico-chemical effect due to pore
structure interference. Torbanite (boghead coal) has a
much lower R70 self-heating rate index value
(approximately one fifth) than its humic coal rank
equivalent. In addition, torbanite does not readily produce
coal fines, which also contributes to lowering the
propensity for spontaneous combustion.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Fri, 18 Mar 2011, 09:50:05 EST by Deanna Mahony on behalf of School of Mechanical and Mining Engineering