Microstructure evolution characteristics of Shengli lignite during combustion process

SONG Yin-min; LI Na; BAN Yan-peng; TENG Ying-yue; ZHI Ke-duan; HE Run-xia; ZHOU Hua-cong; LIU Quan-sheng

Volume 45 Issue 12

Dec. 2017

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Article Navigation > Journal of Fuel Chemistry and Technology > 2017 > 45(12): 1417-1423

SONG Yin-min, LI Na, BAN Yan-peng, TENG Ying-yue, ZHI Ke-duan, HE Run-xia, ZHOU Hua-cong, LIU Quan-sheng. Microstructure evolution characteristics of Shengli lignite during combustion process[J]. Journal of Fuel Chemistry and Technology, 2017, 45(12): 1417-1423.

Citation:

SONG Yin-min, LI Na, BAN Yan-peng, TENG Ying-yue, ZHI Ke-duan, HE Run-xia, ZHOU Hua-cong, LIU Quan-sheng. Microstructure evolution characteristics of Shengli lignite during combustion process[J]. Journal of Fuel Chemistry and Technology, 2017, 45(12): 1417-1423.

Citation:

SONG Yin-min, LI Na, BAN Yan-peng, TENG Ying-yue, ZHI Ke-duan, HE Run-xia, ZHOU Hua-cong, LIU Quan-sheng. Microstructure evolution characteristics of Shengli lignite during combustion process[J]. Journal of Fuel Chemistry and Technology, 2017, 45(12): 1417-1423.

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Microstructure evolution characteristics of Shengli lignite during combustion process

College of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources, Huhhot 010051, China

Funds:

the National Natural Science Foundation of China 21676149

the National Natural Science Foundation of China 21606134

the National Natural Science Foundation of China 21566029

the National Natural Science Foundation of China 21566028

the National Natural Science Foundation of China 21266017

the National Natural Science Foundation of China 21766023

Natural Science Foundation of Inner Mongolia 2014MS0220

Natural Science Foundation of Inner Mongolia 2015BS0206

Natural Science Foundation of Inner Mongolia 2016BS0204

Natural Science Foundation of Inner Mongolia 2017MS0201

More Information

Corresponding author: LIU Quan-sheng, Tel: 13664740405, E-mail: liuqs@imut.edu.cn
Received Date: 2017-06-06
Rev Recd Date: 2017-09-14

Available Online: 2021-01-23

Publish Date: 2017-12-10

Abstract

Abstract

The combustion of Shengli lignite demineralized with hydrochloric acid was carried and residues from different reaction conditions were obtained. The microstructural properties of the lignite and residues were examined by FT-IR, XRD, XPS and Raman, respectively. The results indicate that aliphatic functional groups were consumed during combustion, while oxygen-containing groups and aromatic structure were consumed and generated alternatively. The proportion of C-C/C-H structure decreased after increasing, while the content of carbon-oxygen structure was increased following decrease. The aromaticity of residues increased and I_D/I_G increased before decrease, while I_S/I_G decreased before increase. This indicated that graphitization transformation degree of lignite obviously increased during combustion, especially in the late stage of reaction.
- Shengli lignite,
- coal spontaneous combustion,
- unreacted residues,
- structure characteristics

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References(30)

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