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(3): 270-276. shu

Raman spectroscopic study on the pyrolysis of Australian bituminous coal

1.
1. Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai 200072, China;

Received Date: 27 October 2013
Available Online: 16 December 2013
Fund Project: 国家自然科学基金重点项目(50932005) (50932005)国家自然科学基金(20973107,40973046) (20973107,40973046)上海市科委科技基金(12520709200) (12520709200)

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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