Coke microcrystalline texture and its effect on coke reactivity

ZHANG Zhuo; XIE Feng; ZHENG Yi; CHENG Huan; WANG Qi

Volume 46 Issue 4

Apr. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(4): 406-412

ZHANG Zhuo, XIE Feng, ZHENG Yi, CHENG Huan, WANG Qi. Coke microcrystalline texture and its effect on coke reactivity[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 406-412.

Citation:

ZHANG Zhuo, XIE Feng, ZHENG Yi, CHENG Huan, WANG Qi. Coke microcrystalline texture and its effect on coke reactivity[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 406-412.

ZHANG Zhuo, XIE Feng, ZHENG Yi, CHENG Huan, WANG Qi. Coke microcrystalline texture and its effect on coke reactivity[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 406-412.

Citation:

ZHANG Zhuo, XIE Feng, ZHENG Yi, CHENG Huan, WANG Qi. Coke microcrystalline texture and its effect on coke reactivity[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 406-412.

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Coke microcrystalline texture and its effect on coke reactivity

ZHANG Zhuo^{1, 2},
XIE Feng²,
ZHENG Yi²,
CHENG Huan³,
WANG Qi^{1
,
,}

1.
The Key Laboratory of Chemical Metallurgy Engineering of Liaoning Province, Liaoning University of Science and Technology, Anshan 114051, China
2.
School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
3.
College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China

Funds:

the National Natural Science Foundation of China U1361212

More Information

Corresponding author: WANG Qi, E-mail: wangqi8822@sina.com
Received Date: 2017-11-19
Rev Recd Date: 2018-01-25

Available Online: 2021-01-23

Publish Date: 2018-04-10

Abstract

Abstract

The coke microcrystalline texture was studied by a high resolution transmission electron microscopy combined with digital image analytical technique (HRTEM-DI). The length, inclination angle and curvature characterization parameters of coke microcrystalline texture may be used to express the size of coke microcrystal, the order degree of microcrystalline lamellar and the order degree of microcrystalline stacking. The developed crystallographic index which is used to characterize the size and order degree could better reflect the effect of coke crystallinity on the coke reactivity.
- coke,
- microcrystalline texture,
- HRTEM,
- digital image analysis,
- crystallographic index,
- reactivity

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References(21)

References

[1]	DUVAL B, GUET J M, RICHARD J R, ROUZAUD J N. Coke properties and their microtexture. Part Ⅲ:First results about relationship between microtexture and reactivity of some cokes[J]. Fuel Process Technol, 1988, 20:163-175. doi: 10.1016/0378-3820(88)90017-3
[2]	LU L, SAHAJWAILA V, HARRIS D. Coal char reactivity and structural evolution during combustion-Factors influencing blast furnace pulverized coal injection operation[J]. Metall Mater Trans B, 2002, 43:811-820. doi: 10.1007/s11663-001-0068-9
[3]	汪美蔷, 郭行器, 路云娟.焦炭结构与焦炭质量关系的研究[J].钢铁研究, 1995, 87(6):39-45. http://www.cqvip.com/qk/94212X/199506/1735497.html WANG Mei-qiang, GUO Xing-qi, LU Yun-juan. Study of relationship between coke structures and its quality[J]. Res Iron Steel, 1995, 87(6):39-45. http://www.cqvip.com/qk/94212X/199506/1735497.html
[4]	康西栋, 胡善亭, 潘治贵, 潘银苗, 王凌志.煤的变质程度对焦炭结构构造的影响[J].长春地质学院学报, 1997, 27(3):323-326. http://www.cqvip.com/QK/91256X/199703/2536867.html KANG Xi-dong, HU Shan-ting, PAN Zhi-gui, PAN Yin-miao, WANG Ling-zhi. Influence of coal metamorphic degree on texture and structure of coke[J]. J Changchun Univ Earth Sci, 1997, 27(3):323-326. http://www.cqvip.com/QK/91256X/199703/2536867.html
[5]	戴中蜀.煤岩显微组分与焦炭光学组织结构及焦炭质量关系的研究[J].武汉钢铁学院学报. 1993, 16(2):139-145. http://www.cnki.com.cn/Article/CJFDTOTAL-MZYK201305001.htm DAI Zhong-chu. Study on the relationship between maceral group and optical texture, coke quality[J]. J Wuhan Iron Steel Univ, 1993, 16(2):139-145. http://www.cnki.com.cn/Article/CJFDTOTAL-MZYK201305001.htm
[6]	陈爱国, 周淑仪.煤岩显微组分与焦炭显微结构组成之间关系的研究[J].煤化工, 1995, (4):38-41, 48. http://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD603.005.htm CHEN Ai-guo, ZHOU Shu-yi. Study on the relationship between maceral of coal and optical texture of its coke[J]. Coal Chemical Industry, 1995, (4):38-41, 48. http://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD603.005.htm
[7]	黄瀛华, 任德庆, 山下弘已, 富田彰.显微组分的热性质及其焦炭特征[J].燃料与化工, 1994, 25(3):121-124. http://www.cnki.com.cn/Article/CJFDTOTAL-NRHG199403004.htm HUANG Ying-hua, REN De-qing, HIROMI Yamashita, AKIRA Tomita. Thermal nature of macerals and coke characteristic[J]. Fuel Chem Proc, 1994, 25(3):121-124. http://www.cnki.com.cn/Article/CJFDTOTAL-NRHG199403004.htm
[8]	吴晓英.烟煤高温焦炭微晶结构的X衍射研究[J].西安矿业学院学报, 1999, 19(2):158-160. http://industry.wanfangdata.com.cn/yj/Detail/Periodical?id=Periodical_xakyxyxb199902015 WU Xiao-yeng. Study of XRD on the crystallite structure characteristics of high temperature coke of coals[J]. J XI'an Min Inst, 1999, 19(2):158-160. http://industry.wanfangdata.com.cn/yj/Detail/Periodical?id=Periodical_xakyxyxb199902015
[9]	SHARMA A, KYOTANI T, TOMITA A. A new quantitative approach for microstructural analysis of coal char using HRTEM images[J]. Fuel, 1999, 78:1203-1212. doi: 10.1016/S0016-2361(99)00046-0
[10]	HONG-SHIG S, ROBERT H H, NANCY Y C, YANG. A methodology for analysis of 002 lattice fringe images and its application to combustion-derived carbons[J]. Carbon, 2002, 38:29-45. https://www.sciencedirect.com/science/article/pii/S0008622399000962
[11]	PUSZ S, KRZESIŃSKA M L. Smedowski. Changes in a coke structure due to reaction with carbon dioxide[J]. Int J Coal Geol, 2010, 81:287-292. doi: 10.1016/j.coal.2009.07.013
[12]	ANDRIANI G F, WALSH N. Physical properties and textural parameters of calcarenitic rocks:Qualitative and quantitative evaluations[J]. Eng Geol, 2002, 67:5-15. doi: 10.1016/S0013-7952(02)00106-0
[13]	SMEDOWSKI Y, KRZESI ŃSKA M, KWAŚNY W, KOZANECKI M. Development of ordered structures in the high-temperature(HT) cokes from binary and ternary coal blends studied by meansof X-ray diffraction and raman spectroscopy 2011 American chemical society[J]. Energy Fuels, 2011, 25, 3142-3149. doi: 10.1021/ef200609t
[14]	房永征, 曹银平, 金鸣林, 杨俊, 钱湛芬.添加无烟煤对焦炭微晶和气孔结构的影响[J].钢铁, 2006, 41(10):16-18. http://www.cqvip.com/QK/87801X/200710/24438537.html FANG Yong-zheng, CAO Yin-ping, JIN Ming-lin, YANG Jun-he, QIAN Zhan-fen. Effect of anthracite in coal blend on micro-crystal and pore structure of coke[J]. Iron Steel, 2006, 41(10):16-18. http://www.cqvip.com/QK/87801X/200710/24438537.html
[15]	ROUZAUD J R, VOGT D, OBERLIN A. Coke properties and their microtexture Part Ⅰ:Microtextural analysis:A guide for cokemaking[J]. Fuel Process Technol, 1998, 20:143-154. https://www.sciencedirect.com/science/article/pii/037838208890015X
[16]	ROUZAUD J N, JEHLICKA J, FAUGERE A M, PIS J J, ALVAREZ R. Influence of the oxidation of coals of different rank on coke microtexture and other relevant properties[J]. Fuel, 1994, 73:810-815. doi: 10.1016/0016-2361(94)90272-0
[17]	范晓雷, 杨帆, 张薇, 周志杰, 王辅臣, 于遵宏.热解过程中煤焦微晶结构变化及其对煤焦气化反应活性的影响[J].燃料化学学报, 2006, 34(4):395-398. http://www.cqvip.com/Main/Detail.aspx?id=22639192 FAN Xiao-lei, YANG Fan, ZHANG Wei, ZHOU Zhi-jie, WANG Fu-chen, YU Zun-hong. Variation of the crysta lline structure of coal char during pyrolysis and its effect on gasification reactivity[J]. J Fuel Chem Technol, 2006, 34(4):395-398. http://www.cqvip.com/Main/Detail.aspx?id=22639192
[18]	胡德生.焦炭微晶结构特性研究[J].钢铁, 2006, 41(11):10-12. doi: 10.3321/j.issn:0449-749X.2006.11.003 HU De-sheng. Crystallite structure characteristics of coke[J]. Iron Steel, 2006, 41(11):10-12. doi: 10.3321/j.issn:0449-749X.2006.11.003
[19]	张守玉, 吕俊复, 王文选, 朱廷钰, 黎永, 岳光溪.热处理对煤焦反应性及微观结构的影响[J].燃料化学学报, 2004, 32(6):673-678. http://www.cqvip.com/Main/Detail.aspx?id=12020932 ZHANG Shou-yu, LÜ Jun-fu, WANG Wen-xuan, ZHU Ting-yu, LI Yong, YUE Guang-xi. Effect of heat treatment on the reactivity and microstructure of coal-char[J]. J Fuel Chem Technol, 2004, 32(6):673-678. http://www.cqvip.com/Main/Detail.aspx?id=12020932
[20]	YANG J H, CHENG S H. Quantitative analysis of microstructure of carbon materials by HRTEM Trans[J]. Nonferrous Met SOC China, 2006, 16:796-803. doi: 10.1016/S1003-6326(06)60303-8
[21]	DOBB M G, GUO H, JOHNSON D J. Image analysis of lattice imperfections in carbon fibers[J]. Carbon, 1995, 33:1115-1120. doi: 10.1016/0008-6223(95)00060-Q