Effect of ash on coal structure and combustibility

Xiao-jun Ning; Wang Liang; Jian-liang Zhang; Guang-wei Wang; Yan-jiang Li; Chun-he Jiang

doi:10.1007/s12613-019-1812-y

Volume 26 Issue 8

Aug. 2019

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文章导航 > 矿物冶金与材料学报（英文） > 2019 > 26(8): 973-982

Xiao-jun Ning, Wang Liang, Jian-liang Zhang, Guang-wei Wang, Yan-jiang Li, and Chun-he Jiang, Effect of ash on coal structure and combustibility, Int. J. Miner. Metall. Mater., 26(2019), No. 8, pp. 973-982. https://doi.org/10.1007/s12613-019-1812-y

Cite this article as:

Xiao-jun Ning, Wang Liang, Jian-liang Zhang, Guang-wei Wang, Yan-jiang Li, and Chun-he Jiang, Effect of ash on coal structure and combustibility, Int. J. Miner. Metall. Mater., 26(2019), No. 8, pp. 973-982. https://doi.org/10.1007/s12613-019-1812-y

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研究论文

Effect of ash on coal structure and combustibility

State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
School of Chemical Engineering, The University of Queensland, Queensland 4072, Australia

通讯作者:
Guang-wei Wang E-mail: guangwei_wang@ustb.edu.cn

中文摘要

Four bituminous coals and one anthracite were used in this study. On the basis of the similar volatile matter contents of the four bituminous coals, the effects of ash in coal on the microstructure, carbonaceous structure, and chemical composition of pulverized coal were studied. Thermogravimetric analysis was used to study the effect of the addition of anthracite on the combustibility of four different bituminous coals. The results showed that with the increase of ash content in pulverized coal, the microstructure of carbon particles in coal was not much different. However, the analysis results of Raman spectroscopy and X-ray diffraction pattern showed that as the ash content increased, the degree of graphitization of coal carbonaceous structure gradually decreased. The combustibility of the four bituminous coals were better than that of the anthracite. When bituminous coal and anthracite were mixed and burned, the combustibility of the mixed sample decreased as the ash content increased.

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Research Article

Effect of ash on coal structure and combustibility

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Abstract

Abstract

Four bituminous coals and one anthracite were used in this study. On the basis of the similar volatile matter contents of the four bituminous coals, the effects of ash in coal on the microstructure, carbonaceous structure, and chemical composition of pulverized coal were studied. Thermogravimetric analysis was used to study the effect of the addition of anthracite on the combustibility of four different bituminous coals. The results showed that with the increase of ash content in pulverized coal, the microstructure of carbon particles in coal was not much different. However, the analysis results of Raman spectroscopy and X-ray diffraction pattern showed that as the ash content increased, the degree of graphitization of coal carbonaceous structure gradually decreased. The combustibility of the four bituminous coals were better than that of the anthracite. When bituminous coal and anthracite were mixed and burned, the combustibility of the mixed sample decreased as the ash content increased.
- carbonaceous structure;
- combustion characteristics;
- graphitization;
- thermogravimetric

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Effect of ash on coal structure and combustibility

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Effect of ash on coal structure and combustibility

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