Micro-structure and micro-strength of coke from co-carbonization of lean coal and thermal extract from low rank coal

ZHU Ya-ming; TANG Shuai; ZHAO Xue-fei; ZHAO Chun-lei; YUAN Ji; HU Chao-shuai; YAN Li-dong

Volume 46 Issue 9

Sep. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(9): 1036-1043

ZHU Ya-ming, TANG Shuai, ZHAO Xue-fei, ZHAO Chun-lei, YUAN Ji, HU Chao-shuai, YAN Li-dong. Micro-structure and micro-strength of coke from co-carbonization of lean coal and thermal extract from low rank coal[J]. Journal of Fuel Chemistry and Technology, 2018, 46(9): 1036-1043.

Citation:

ZHU Ya-ming, TANG Shuai, ZHAO Xue-fei, ZHAO Chun-lei, YUAN Ji, HU Chao-shuai, YAN Li-dong. Micro-structure and micro-strength of coke from co-carbonization of lean coal and thermal extract from low rank coal[J]. Journal of Fuel Chemistry and Technology, 2018, 46(9): 1036-1043.

Citation:

ZHU Ya-ming, TANG Shuai, ZHAO Xue-fei, ZHAO Chun-lei, YUAN Ji, HU Chao-shuai, YAN Li-dong. Micro-structure and micro-strength of coke from co-carbonization of lean coal and thermal extract from low rank coal[J]. Journal of Fuel Chemistry and Technology, 2018, 46(9): 1036-1043.

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Micro-structure and micro-strength of coke from co-carbonization of lean coal and thermal extract from low rank coal

ZHU Ya-ming^{1, 2},
TANG Shuai³,
ZHAO Xue-fei^{1, 2
,
,},
ZHAO Chun-lei^{1, 2},
YUAN Ji^{1, 2},
HU Chao-shuai^{1, 2},
YAN Li-dong¹

1.
Engineering Research Center of Advanced Coal Coking and Efficient Use of Coal Resources, University of Science and Technology Liaoning, Institute of Chemical Engineering, Anshan 114051, China
2.
Key Laboratory of Chemical Metallurgy Liaoning Province, University of Science and Technology Liaoning, Anshan 114051, China
3.
Sinosteel Anshan Research Institute of Thermo-Energy Co., Ltd, Anshan 114044, China

Funds:

the National Nature Science Foundation of China U1361212

the Youth Fund of the Education Department of Liaoning Province 2017LNQN04

the Youth Fund of University of Science and Technology Liaoning 2017QN06

More Information

Corresponding author: ZHAO Xue-fei, E-mail: zhao_xuefei@sohu.com
Received Date: 2018-05-22
Rev Recd Date: 2018-07-20

Available Online: 2021-01-23

Publish Date: 2018-09-10

Abstract

Abstract

Crucible cokes were obtained by co-carbonization of Zhongwei lean coal as main coking coal and thermal extract from Datong long-flame coal as additive. The degree of regularization on anisotropic structure (DRAS) of coke was obtained by quantitative calculation of optical tissue from polarized microscopy. The crystallite size (L_c), aromatic condensation (L_a) and degree of graphitization (g) have been quantitative calculated by combination of XRD and curve-fitted method. Furthermore, Raman spectrum and curve-fitted method have been used to obtain content of ideal graphite microcrystalline of coke. The quantitative analysis of optical micro-component on obtained cokes shows that addition of thermal extract from Datong long-flame coal has a significant influence on optical micro-component of coke. There is good consistency on DRAS and microcrystalline parameters, which is calculated by the method of polarized microscopy and XRD and Raman spectrum, respectively. Moreover, the micro-strength index of coke is highly correlated with its microstructure.
- coke,
- micro-structure,
- degree of regularization on anisotropic structure (DRAS),
- microcrystalline parameter

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References(32)

References

[1]	SHUI H F, ZHENG M D, WANG Z C, LI X M. Effect of coal soluble constituents on caking properties of coal[J]. Fuel, 2007, 186(10/11):1396-1401.
[2]	SHUI H F, ZHAO W J, SHAN C J, SHUI T, PAN C X, WANG Z C, LEI Z P, REN S B, KANG S G. Caking and coking properties of the thermal dissolution soluble fraction of a fat coal[J]. Fuel Process Technol, 2014, 118(2):64-68. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=JJ0231834001
[3]	SHUI H F, ZHENG M D, WANG Z C, LI X M. Effect of coal soluble constituents on caking property of coal[J]. Fuel, 2007, 86(10):1396-1401. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=JJ024274289
[4]	KOSZOREK A, KRZESIŃSKA M, PUSZ S, PUSZ B, KWIECIŃSKA B. Relationship between the technical parameters of cokes produced from blends of three Polish coals of different coking ability[J]. Int J Coal Geol, 2009, 77(2):363-371. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=JJ0210368865
[5]	SHUI H F, WU Y, WANG Z C, LEI Z P, LIN C H, REN S B, PAN C X, KANG S G. Hydrothermal treatment of a sub-bituminous coal and its use in coking blends[J]. Energy Fuels, 2013, 27(1):138-144. doi: 10.1021/ef301539x
[6]	NORINAGA K, HAYASHI J I, KATO R, CHIBA T. Reduction in thermo plasticity of Illinois No. 6 coal by heat treatment in refluxing chlorobenzene[J]. Energy Fuels, 2000, 14(2):511-512. doi: 10.1021/ef990137e
[7]	SHARMA A, TAKANOHASHI T, MORISHITA K, TAKARADA T, SAITO I. Low temperature catalytic steam gasification of hyper-coal to produce H2 and synthesis gas[J]. Fuel, 2008, 87(4):491-497.
[8]	TAKANOHASHI T, SHISHIDO T, SAITO I. Effects of hyper coal addition on coke strength and thermoplasticity of coal blends[J]. Energy Fuels, 2008, 22(3):1779-1783. doi: 10.1021/ef7007375
[9]	CHANG C M, WHANG T J, HUANG D S, WANG D, TSAI S T. Thermoplasticity and strength improvement of coking coal by addition of coal extracts[J]. Fuel, 2014, 117(1):364-371. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=JJ0232105668
[10]	YOSHIDA T, LI T, TAKANOHASHI T, MATSUMURA A, SATO S, SAITO I. Effect of extraction condition on "hypercoal" production (2):effect of polar solvents under hot filtration[J]. Fuel Process Technol, 2004, 86(1):61-72. doi: 10.1016/j.fuproc.2003.12.003
[11]	OKUYAMA N, KOMATSU N, SHIGEHISA T, KANEKO T, TSURUYA S. Hyper-coal process to produce the ash-free coal[J]. Fuel Process Technol, 2004, 85(8):947-967.
[12]	KASHIMURA N, TAKANOHASHI T, MASAKI K, SHISHIDO T, SATO S, MATSUMURA A, SAITO I. Relationship between thermal extraction yield and oxygen-containing functional groups[J]. Energy Fuels, 2006, 20(5):2088-2092. doi: 10.1021/ef060194p
[13]	NISHIBATA Y. Effect of hyper coal addition to coal on coke quality[J]. Proceedings icsti, 2006, 640-643. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=CC025203051
[14]	BRASHAW W, MAMONE V. Structural characterization of graphitic cokes and product thereof[M]. Qxford:Qxford University Press, 1976.
[15]	MARSH H, CORNFORD C. Mesophase:The precursor to graphitizable carbon[M]. Qxford:Qxford University Press, 1976.
[16]	钱树安, 宋孝真, 范仁礼, 李春锋.针状焦的微结构特征-关于针焦品质评价的新观点[J].燃料化学学报, 1981, 9(2):105-122. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK000002478954 QIAN Shu-an, SONG Xiao-zhen, FAN Ren-li, LI Chun-feng. The microstructural characteristics of needle cokes-new concept on evaluation of needle coke properties[J]. J Fuel Chem Technol, 1981, 9(2):105-122. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK000002478954
[17]	吴晓英.烟煤高温焦炭微晶结构X衍射研究[J].西安矿业学院学报, 1999, 19(2):158-160. doi: 10.3969/j.issn.1672-9315.1999.02.015 WU Xiao-ying. Study of XRD on the crystallite structure characteristics of high temperature coke of coals[J]. J Xi'an Ming Inst, 1999, 19(2):158-160. doi: 10.3969/j.issn.1672-9315.1999.02.015
[18]	ANDRIANI G F, WALSH N. Physical properties and textural parameters of calcarenitic rocks:Qualitative and quantitative evaluations[J]. Eng Geol, 2002, 67(1):5-15. http://cn.bing.com/academic/profile?id=d684a86e52ec785f33534af1d2a03b2b&encoded=0&v=paper_preview&mkt=zh-cn
[19]	SMEDOWSKI Y, KRZESIN S M, KWAS N 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(7):3142-3149. doi: 10.1021/ef200609t
[20]	房永征, 曹银平, 金鸣林, 杨俊和, 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://d.old.wanfangdata.com.cn/Periodical/gt200610003 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, 41(10):16-18. http://d.old.wanfangdata.com.cn/Periodical/gt200610003
[21]	张琢, 谢峰, 郑义, 程欢, 汪琦.焦炭的微晶结构及其对反应性的影响[J].燃料化学学报, 2018, 46(4):406-412. ZHANG Zhuo, XIE Feng, CHENG Huan, WANG Qi. Coke microcrystalline texture and its effect on coke reactivity[J]. J Fuel Chem Technol, 2018, 46(4):16-18.
[22]	朱亚明, 唐帅, 赵雪飞, 赖仕全, 高丽娟.长焰煤热解萃取物对单种煤成焦性的影响[J].燃料与化工, 2016, 47(1):1-3. doi: 10.3969/j.issn.1001-3709.2016.01.001 ZHU Ya-ming, TANG Shuai, ZHAO Xue-fei, LAI Shi-quan, GAO Li-juan. Influence of pyrolytic extracts of long flame coal to the coking properties of individual coal[J]. Fuel Chem Process, 2016, 47(1):1-3. doi: 10.3969/j.issn.1001-3709.2016.01.001
[23]	NOMURA S, KATO K, NAKAGAWA T, KOMAKI I. The effect of plastic addition on coal caking properties during carbonization[J]. Fuel, 2003, 82:1775-1782. doi: 10.1016/S0016-2361(03)00120-0
[24]	SHUI H F, HE F, WU Y, PAN C X, WANG Z C, LEI Z P, REN S B, KANG S G. Study on the use of the thermal dissolution soluble fraction from shenfu sub-bituminous coal in coke-making coal blends[J]. Energy Fuels, 2015, 29(13):1558-1563.
[25]	姚昭章, 郑明东.炼焦学[M].北京:冶金工业出版社, 2015. YAO Zhao-zhang, ZHENG Ming-dong. Coking Technology[M]. 3rd ed. Beijing:Metallurgical Industry Press, 2015.
[26]	MANOJ B, KUNJOMANA A G. Study of stacking structure of amorphous carbon by X-ray diffraction technique[J]. Int J Electrochem Sci, 2012, 7(4):3127-3134.
[27]	MORGA R, JOLONEK I, KRUSZEWSKA K, SZULIK W. Relationships between quality of coals, resulting cokes, and micro-raman spectral characteristics of these cokes[J]. Int J Coal Geol, 2015, 144(1):130. http://cn.bing.com/academic/profile?id=e29c6426b14e8dfc2364c6ca08715b62&encoded=0&v=paper_preview&mkt=zh-cn
[28]	SADEZKY A, MUCKENHUBER H, GROTHE H, NIESSNER R, PÖSCHL U. Raman microspectroscopy of soot and related carbonaceous materials:Spectral analysis and structural information[J]. Carbon, 2005, 43(8):1731-1742. doi: 10.1016/j.carbon.2005.02.018
[29]	MORGA R. Micro-raman spectroscopy of carbonized semifusinite and fusinite[J]. Int J Coal Geol, 2011, 87(3):253-267. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=JJ0224948617
[30]	BEYSSAC O, GOFFÉ B, PETITET J P, IGNEUX E, MOREAU M, ROUZAUD J N. On the characterization of disordered and heterogeneous carbonaceous materials by raman spectroscopy[J]. Spectrochim Acta A, 2003, 59(10):2267-2276. doi: 10.1016/S1386-1425(03)00070-2
[31]	ZHU Y M, ZHAO X F, GAO L J, CHENG J X, LV J, LAI S Q. Quantitative study of the microcrystal structure on coal based on needle coke with curve-fitted of XRD and Raman spectrum[J]. Spectrosc Spect Anal, 2017, 37(6):1919-1924. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gpxygpfx201706049
[32]	ZHU Y M, ZHAO X F, GAO L J, LV J, CHENG J X, LAI S Q. Study on the pyrolysis characteristic and the microstructure of the pyrolysis products of β resins from different coal tar pitch[J]. J Chem Soc Pakistan, 2018, 40(2):343-353.