Citation: GUO Hui-qing, FU Qi, WANG Xin-long, LIU Fen-rong, HU Rui-sheng, ZHANG Hao. Effect of CO₂ atmosphere on sulfur release during coal pyrolysis[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(5): 523-528. shu

Effect of CO₂ atmosphere on sulfur release during coal pyrolysis

GUO Hui-qing ^1,2 ,
FU Qi ¹ ,
WANG Xin-long ¹ ,
LIU Fen-rong ^1,*,, ,
HU Rui-sheng ¹ ,
ZHANG Hao ¹

1.
College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
2.
College of Pharmacy, Inner Mongolia Medical University, Hohhot 010110, China

Corresponding author: LIU Fen-rong, fenrongl@163.com
Received Date: 11 November 2016
Revised Date: 22 March 2017

Fund Project: the National Natural Science Foundation of China 21466025

Figures(5)

Yima (YM) coal and Pingshuo (PS) coal as well as their deashed coals and depyrited coals were used to investigate the effects of CO₂ and Ar on the sulfur release behavior during coal pyrolysis by pyrolysis connected with mass spectrometer (Py-MS) and pyrolysis connected with gas chromatogram (Py-GC). It is found that CO₂ atmosphere can promote the release of H₂S, COS and SO₂, especially the remarkable releasing of COS. In addition, CO₂ atmosphere can decrease the maximum release peak temperature of H₂S, COS and SO₂ for raw coals, while there is no obvious effect for their deashed coals. At the same time, CO₂ is beneficial to the decomposition of organic sulfur at higher temperature. That the COS formation is related to CO at higher temperatures and has nothing to do with CO at lower temperatures is validated.
- CO₂ atmosphere,
- coal pyrolysis,
- sulfur release,
- Py-MS,
- Py-GC
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沈阳化工大学材料科学与工程学院沈阳 110142

Effect of CO2 atmosphere on sulfur release during coal pyrolysis

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Effect of CO₂ atmosphere on sulfur release during coal pyrolysis