Ahmad, I. and Nabiullah,, M. and Prasad,, R.S.
(2009)
Role of Oxygen Functional Groups and Fuel Ratio in Self heating of Coal.
Journal of Mines Metals & Fuels, 57 (1&2).
pp. 23-27.
ISSN 0022-2755
Abstract
A number of methods are in practice at different places throughout the world to determine susceptibility of coal towards spontaneous heating. Among these, crossing point temperature(CPT) method is very simple and gives a good idea of the propensity of coal towards heating. Liability index calculated using CPT is also useful for studying the propensity of coal towards spontaneous heating. However, determination of CPT in lab requires extra precaution for repeatable results.
To overcome the difficulties, attempt were made to study the relationship between peripheral oxygen groups or the functional oxygen groups in coals and their correlation with proneness to auto-oxidation using liability index (LI), Also the correlation between liability index and crossing point temperature have been presented in this paper
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