Raman spectroscopic study on the pyrolysis of Australian bituminous coal

LIU Xiao-fei; YOU Jing-lin; WANG Yuan-yuan; LU Li-ming; XIE Ying-fang; YU Li-wang; FU Qing

Volume 42 Issue 03

Mar. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(03): 270-276

LIU Xiao-fei, YOU Jing-lin, WANG Yuan-yuan, LU Li-ming, XIE Ying-fang, YU Li-wang, FU Qing. Raman spectroscopic study on the pyrolysis of Australian bituminous coal[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 270-276.

Citation:

LIU Xiao-fei, YOU Jing-lin, WANG Yuan-yuan, LU Li-ming, XIE Ying-fang, YU Li-wang, FU Qing. Raman spectroscopic study on the pyrolysis of Australian bituminous coal[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 270-276.

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Raman spectroscopic study on the pyrolysis of Australian bituminous coal

1.
Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai 200072, China;
2.
CSIRO Process Science and Engineering, Kenmore, QLD4069, Australia

Received Date: 2013-10-27
Rev Recd Date: 2013-12-16
Publish Date: 2014-03-31

Abstract

Abstract

Raman spectroscopy was applied to investigate the temperature dependent pyrolysis of Australian bituminous coal from 298 to 1 473 K in argon and nitrogen atmospheres. The results indicated that the pyrolysis of Australian bituminous coal can be divided into three stages: 298~873 K, precipitation and volatilization of small molecule compounds (original in coal or decomposed by heat treatment); 873~1 273 K, cracking and volatilization of macromolecular compounds; 1 273~1 473 K, graphitization of coke. After annealing at 1 473 K, the ordered carbon content of coke is significantly related to the atmosphere of nitrogen or argon; nitrogen is conducive to the pyrolysis of coal. Annealing or holding time exhibits little effect on coal pyrolysis and coke structure evolution; however, long holding time is helpful for the volatilization of small molecules at low temperature.
- Raman spectroscopy,
- pyrolysis,
- Australian bituminous coal,
- atmosphere,
- heat holding time

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References(32)

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