Structure characteristics of unreacted residues in combustion of Shengli lignite and effect of adding Fe components

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

Volume 44 Issue 12

Dec. 2016

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Article Navigation > Journal of Fuel Chemistry and Technology > 2016 > 44(12): 1447-1456

SONG Yin-min, FENG Wei, WANG Yun-fei, LI Na, BAN Yan-peng, TENG Ying-yue, ZHI Ke-duan, HE Run-xia, ZHOU Hua-cong, LIU Quan-sheng. Structure characteristics of unreacted residues in combustion of Shengli lignite and effect of adding Fe components[J]. Journal of Fuel Chemistry and Technology, 2016, 44(12): 1447-1456.

Citation:

SONG Yin-min, FENG Wei, WANG Yun-fei, LI Na, BAN Yan-peng, TENG Ying-yue, ZHI Ke-duan, HE Run-xia, ZHOU Hua-cong, LIU Quan-sheng. Structure characteristics of unreacted residues in combustion of Shengli lignite and effect of adding Fe components[J]. Journal of Fuel Chemistry and Technology, 2016, 44(12): 1447-1456.

Citation:

SONG Yin-min, FENG Wei, WANG Yun-fei, LI Na, BAN Yan-peng, TENG Ying-yue, ZHI Ke-duan, HE Run-xia, ZHOU Hua-cong, LIU Quan-sheng. Structure characteristics of unreacted residues in combustion of Shengli lignite and effect of adding Fe components[J]. Journal of Fuel Chemistry and Technology, 2016, 44(12): 1447-1456.

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Structure characteristics of unreacted residues in combustion of Shengli lignite and effect of adding Fe components

1.
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
2.
Department of Chemical Engineering, Ordos Institute of Technology, Ordos 017000, China

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Corresponding author: Tel: 13664740405,liuqs@imut.edu.cn
Received Date: 2016-07-13
Rev Recd Date: 2016-09-21

Available Online: 2021-01-23

Publish Date: 2016-12-10

Abstract

Abstract

The effect of Fe on structure of unreacted residues from combustion of demineralized Shengli lignite at ignition temperature was studied. TGA was adopted to investigate the ignition temperature of demineralized and Fe adding lignite, which were combusted at ignition temperature in quartz tube reactor to attain solid unreacted residues. The structure properties of lignite and the unreacted residues were investigated by FT-IR, XPS, XRD, and Raman spectra to study influence of Fe on the combustion reaction. The results indicate that adding of Fe lowers the ignition temperature of demineralized Shengli lignite, especially when the adding amount was 3.50%. The FT-IR of solid unreacted residues demonstrates that the adding of Fe has no obvious effect on functional groups of unreacted residues, suggesting that the functional groups are not the main factors to affect he combustion performance. The Fe adding accelerates the decrease of carbon-oxygen structure of SL⁺ during combustion and causes the reduced aromaticity and graphitization degree of unreacted residues, and favors the increase in alkyl side chain and crystal structure defects, indicating that the Fe adding promotes the changes in carbon-oxygen structure during combustion and restrains graphitized transformation of unreacted residues.
- Shengli lignite,
- combustion,
- ferric chloride,
- unreacted residues,
- structure characteristics

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References(47)

References

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