Effectiveness of catechin and poly(ethylene glycol) at inhibiting the spontaneous combustion of coal

The effects of various combinations of catechin and poly(ethylene glycol) (PEG) concentrations on the inhibition of coal oxidation were studied. The oxidation behaviors of coal samples both with and without the additives were examined, based on measurements of cross point temperature, oxygen consump...

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Bibliographic Details
Published in:Fuel processing technology 2014-04, Vol.120, p.123-127
Main Authors: Dou, Guolan, Wang, Deming, Zhong, Xiaoxing, Qin, Botao
Format: Article
Language:English
Subjects:
Applied sciences
Carbon monoxide
Catechins
Coal
Combustion of solid fuels
Combustion. Flame
Emission
Energy
Energy. Thermal use of fuels
Ethers
Exact sciences and technology
Glycols
Monitoring
Oxidation
Theoretical studies. Data and constants. Metering
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Summary:The effects of various combinations of catechin and poly(ethylene glycol) (PEG) concentrations on the inhibition of coal oxidation were studied. The oxidation behaviors of coal samples both with and without the additives were examined, based on measurements of cross point temperature, oxygen consumption during low temperature oxidation and carbon monoxide emission rates. The results demonstrate that an additive consisting of a combination of both catechin and PEG 200 is capable of inhibiting the oxidation process. In situ monitoring of the surfaces of coal samples during oxidation also indicated that these additives suppress coal oxidation by accelerating the formation of ether bonds. Accordingly, a suppression mechanism is proposed.
ISSN:0378-3820
1873-7188
DOI:10.1016/j.fuproc.2013.12.016