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Vol. 25 No. 15 (2013): Vol 25 Issue 15

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Low-Temperature Oxidation of Aldehyde and Alcohol by Model Compounds on Spontaneous Combustion of Coal

https://doi.org/10.14233/ajchem.2013.15084
Yibo Tang
School of Safety Engineering, China University of Mining and Technology, Xuzhou 221008, P.R. China
Zenghua Li
School of Safety Engineering, China University of Mining and Technology, Xuzhou 221008, P.R. China
Dongjuan Ma
School of Safety Engineering, China University of Mining and Technology, Xuzhou 221008, P.R. China
Zhen Liu
School of Safety Engineering, China University of Mining and Technology, Xuzhou 221008, P.R. China

Corresponding Author(s) : Yibo Tang

tangyibo11@126.com

Asian Journal of Chemistry, Vol. 25 No. 15 (2013): Vol 25 Issue 15

Abstract

The model compounds which involve representational functional group (aldehyde and alcohol) of coal molecule were oxidized from 293 to 423 K by temperature-programmed. The FTIR and GC-MS were adopted to qualitatively measure the change of the active structure and the ingredients of oxidation product in model compounds. Acetophenone, benzyl alcohol and benzaldehyde etc., were detected in oxidation product of the hyacinthin. Meantime, propiophenone and benzaldehyde were found in the oxidation product of the 1-phenylpropanol. Furthermore, the hyacinthin and 1-phenylpropanol both produce CO2 and CO in low-temperature oxidation stage. The experimental results demonstrated that the hyacinthin achieves maximum oxidative activity at 368 K. By comparison, the oxidizing intensity of 1-phenylpropanol was slightly grew with the increase of temperature form 293 to 423 K. It indicated that the oxidation of aldehyde in coal may play a significant role in heat production during the initial stage of the spontaneous combustion of coal.

Keywords

Spontaneous combustion of coal Model compound Low-temperature oxidation FTIR GC-MS
Tang, Y., Li, Z., Ma, D., & Liu, Z. (2013). Low-Temperature Oxidation of Aldehyde and Alcohol by Model Compounds on Spontaneous Combustion of Coal. Asian Journal of Chemistry, 25(15), 8677–8680. https://doi.org/10.14233/ajchem.2013.15084
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