Study on the influence of raw material composition on the structure of needle coke

LIU Jie; SHI Xue-mei; CUI Lou-wei; FAN Xiao-yong; SHI Jun-he; XU Xian; TIAN Jia-yong; TIAN Yu-cheng; ZHENG Jin-xin; LI Dong

doi:10.1016/S1872-5813(21)60026-9

Volume 49 Issue 4

Apr. 2021

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Article Navigation > Journal of Fuel Chemistry and Technology > 2021 > 49(4): 546-553

LIU Jie, SHI Xue-mei, CUI Lou-wei, FAN Xiao-yong, SHI Jun-he, XU Xian, TIAN Jia-yong, TIAN Yu-cheng, ZHENG Jin-xin, LI Dong. Study on the influence of raw material composition on the structure of needle coke[J]. Journal of Fuel Chemistry and Technology, 2021, 49(4): 546-553. doi: 10.1016/S1872-5813(21)60026-9

Citation:

LIU Jie, SHI Xue-mei, CUI Lou-wei, FAN Xiao-yong, SHI Jun-he, XU Xian, TIAN Jia-yong, TIAN Yu-cheng, ZHENG Jin-xin, LI Dong. Study on the influence of raw material composition on the structure of needle coke[J]. Journal of Fuel Chemistry and Technology, 2021, 49(4): 546-553. doi: 10.1016/S1872-5813(21)60026-9

Citation:

LIU Jie, SHI Xue-mei, CUI Lou-wei, FAN Xiao-yong, SHI Jun-he, XU Xian, TIAN Jia-yong, TIAN Yu-cheng, ZHENG Jin-xin, LI Dong. Study on the influence of raw material composition on the structure of needle coke[J]. Journal of Fuel Chemistry and Technology, 2021, 49(4): 546-553. doi: 10.1016/S1872-5813(21)60026-9

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Study on the influence of raw material composition on the structure of needle coke

doi: 10.1016/S1872-5813(21)60026-9

LIU Jie^{1, 2
,},
SHI Xue-mei³,
CUI Lou-wei⁴,
FAN Xiao-yong^{1, 2, 5},
SHI Jun-he^{1, 2},
XU Xian^{1, 2},
TIAN Jia-yong^{1, 2},
TIAN Yu-cheng^{1, 2},
ZHENG Jin-xin^{1, 2},
LI Dong^{1, 2
,
,}

1.
School of Chemical Engineering, Northwest University, Xi′an 710069, China
2.
Shaanxi Provincial Resource Chemical Application Technology Engineering Research Center, Xi′an 710069, China
3.
Xi′an Aerospace Propulsion Institute, Xi′an 710100, China
4.
Northwest Research Institute of Chemical Industry Co., Ltd., Xi′an 710061, China
5.
School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China

Received Date: 2020-11-19
Rev Recd Date: 2020-12-30

Available Online: 2021-03-08

Publish Date: 2021-04-10

Abstract

Abstract

The refined raw material was first prepared from the low-medium temperature coal tar through hydrogenation for 1.5 h under 330–390 °C and 8 MPa, with a catalyst/oil mass ratio of 1∶40, which was then used to produce needle coke through thermal polymerization and calcination. The composition of refined raw materials was analyzed by elemental analysis, Fourier-transform IR spectroscopy (FT-IR) and gas chromatography-mass spectrometry (GC-MS) and the structure of needle coke was characterized by scanning electron microscope (SEM), X-ray diffractometer (XRD) and polarizing microscope; the effect of raw material composition (related to the hydrogenation temperature) on the structure of needle coke was then investigated. The results indicate that a proper increase in the hydrofining temperature is beneficial to the removal of heteroatoms (especially sulfur). By hydrogenation at 390 °C, the aromatics in the feedstock are polarized due to the cracking and polycondensation. In addition, a higher content of tricyclic and tetracyclic aromatics in the refined raw materials may also lead to a higher graphitization degree for the needle coke product.
- coal tar hydrogenation,
- refined raw materials,
- needle coke,
- optical structure

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References(42)

References

[1]	张怀平, 吕春祥, 李开喜, 刘春林, 凌立成. 针状焦的结构和原料[J]. 煤炭转化,2001,24(1):22−26. ZHANG Huai-ping, LV Chun-xiang, LI Kai-xi, LIU Chun-lin, LING Li-cheng. The structure and raw materials of needle coke[J]. Coal Convers,2001,24(1):22−26.
[2]	MOCHIDA I, QING F, Y, KORAI Y, FUJIMOTO K, YAMASHITA R. Carbonization in the tube bomb leading to needle coke: III. Carbonization properties of several coal-tar pitches[J]. Carbon,1989,27:375−380. doi: 10.1016/0008-6223(89)90069-9
[3]	MONDAL S, YADAV A, KUMAR R, BANSAL V, DAS S K, CHRISTOPHER J, KAPUR G S. Molecular-level structural insight into clarified oil by nuclear magnetic resonance (NMR) spectroscopy: Estimation of hydrocarbon types and average structural parameters[J]. Energy Fuels,2017,31:7682−7692. doi: 10.1021/acs.energyfuels.7b00994
[4]	CAO Q. GUO L C, Dong Y W, XIE X L, JIN L E. Autocatalytic modification of coal tar pitch using benzoyl chloride and its effect on the structure of char[J]. Fuel Process Technol,2015,129:61−66. doi: 10.1016/j.fuproc.2014.08.017
[5]	CAO Q, XIE X L, LI J, DONG J P, JIN L E. A novel method for removing quinoline insolubles and ash in coal tar pitch using electrostatic fields[J]. Fuel,2012,96:314−318. doi: 10.1016/j.fuel.2011.12.061
[6]	CRADDOCK J D, RANTELL T D, HOWER J C, WHITOW D T, WISEMAN J, WEISENERGER M C. Anode coke from coal - A low cost approach[J]. Fuel,2017,187:229−241. doi: 10.1016/j.fuel.2016.09.045
[7]	FAN C L, CHEN H. Preparation, structure, and electrochemical performance of anodes from artificial graphite scrap for lithium ionbatteries[J]. J Mater Sci,2011,46:2140−2147. doi: 10.1007/s10853-010-5050-y
[8]	CAI Y, FAN C L. Influences of conductive additives on eletrochemical performances of artficial graphite anode with different shapes for lithium ion batteries[J]. Electrochim Acta,2011,58:481−487. doi: 10.1016/j.electacta.2011.09.080
[9]	余文凤, 周霞萍, 徐东升, 尹思聪, 张丕祥. 针状焦用煤沥青的调制研究[J]. 洁净煤技术,2011,17(5):77−81. YU Wen-feng, ZHOU Xia-ping, XU Dong-sheng, YIN Si-cong, ZHANG Pi-xiang. Study on the preparation of coal pitch for needle coke[J]. Clean Coal Technol,2011,17(5):77−81.
[10]	FENNADEZ A L, GRANDA M, BERNMEJO J, MENENDEZ R, BERNAD P. Carbon precursors from anthracene oil. Insight into the reactins of anthracene oil with sulfur[J]. Energy Fuels,1998,12(5):949−957. doi: 10.1021/ef9800258
[11]	MOCHIDA I, ANDO T, MAEDA K, FUJITSU H, TAKESHITA K. Catalytic carbonization of aromatic hydrocarbons-IX: Carbonization mechanism of heterocyclic sulfur compounds leading to the anisotropic coke[J]. Carbon,1980,18(2):131−136. doi: 10.1016/0008-6223(80)90021-4
[12]	MOCHIDA I, ANDO T, MAEDA K, FUJITSU H, TAKESHITA K. Catalytic carbonization of aromatic hydrocarbons-VII: Carbonization mechanism of heterocyclic nitrogen compounds catalyzed by aluminum chloride[J]. Carbon,1978,16(6):453−458. doi: 10.1016/0008-6223(78)90092-1
[13]	ZHU Y M, ZHAO C L, XU Y L, HU C S, ZHAO X F. Preparation and characterization of coal pitch-based needle coke (PartⅠ): The effects of aromatic index (f_a) in refined coal pitch[J]. Energy Fuels,2019,33:3456−3464. doi: 10.1021/acs.energyfuels.9b00160
[14]	XING G Z, WANG F M, ZHANG X H, JIN L E, XIE X L, CAO Q. Effect of petroleum pitch on the structure and electrical properties of coal tar pitch coke[J]. Mater Sci Technol,2017,25:44−49.
[15]	KERSHAW J R, SMART P J. Extraction of coal-tar pitch and the effect on carbonization[J]. Carbon,1994,32(1):85−92. doi: 10.1016/0008-6223(94)90012-4
[16]	FAN X, FEI Y Q, CHEN L, LI W. Distribution and structural analysis of polycyclic aromatic hydrocarbons abundant in coal tar pitch[J]. Energy Fuels,2017,31(5):4694−4704. doi: 10.1021/acs.energyfuels.6b03113
[17]	LI X, LI Q. Rheological properties and carbonization of coal-tar pitch[J]. Fuel,1996,75(1):3−7. doi: 10.1016/0016-2361(95)00190-5
[18]	XUE Y B, GE Z F, LI F C, SU S, LI B Z. Modified asphalt properties by blending petroleum asphalt and coal tar pitch[J]. Fuel,2017,207:64−70. doi: 10.1016/j.fuel.2017.06.064
[19]	MIYAKE M, IDA T, YOSHIDA H, WAKISAKA S, NOMURA M, HAMAGUCHI M, NISHIZAWA T. Effects of reductively introduced alkyl groups and hydrogen to mesophase pitch on carbonization properties[J]. Carbon,1993,31(5):705−714. doi: 10.1016/0008-6223(93)90007-W
[20]	KORAI Y, MOCHIDA I. Preparation and properties of carbonaceous mesophase-i soluble mesophase produced from A240 and coal tar pitch[J]. Carbon,1985,23(1):97−103. doi: 10.1016/0008-6223(85)90203-9
[21]	赵雪飞, 高丽娟, 赖仕全, 张雅茹. 我国煤系针状焦的研究及生产状况[J]. 燃料与化工,2010,41(4):1−4+7. doi: 10.3969/j.issn.1001-3709.2010.04.001 ZHAO Xue-fei, GAO Li-juan, LAI Shi-quan, ZHANG Ya-ru. Research and production status of needle coke from coal measures in my country[J]. Fuel Chem Ind,2010,41(4):1−4+7. doi: 10.3969/j.issn.1001-3709.2010.04.001
[22]	孙艳锐, 熊杰明, 易玉峰, 孙国娟. 混合溶剂法脱除煤沥青的喹啉不溶物[J]. 炭素技术,2010,29(3):11−14. doi: 10.3969/j.issn.1001-3741.2010.03.003 SUN Yan-rui, XIONG Jie-ming, YI Yu-feng, SUN Guo-juan. Removal of quinoline insolubles from coal pitch by mixed solvent method[J]. Carbon Technol,2010,29(3):11−14. doi: 10.3969/j.issn.1001-3741.2010.03.003
[23]	解小玲. 对煤基沥青中间相形成因素及针状焦结构影响的研究[D]. 太原: 太原理工大学, 2014. XIE Xiao-ling. Research on the influence of coal-based pitch mesophase formation factors and needle coke structure[D]. Taiyuan: Taiyuan University of Technology, 2014.
[24]	ZHU Y M, ZHAO X F, GAO L J, LI J, CHENG J X, LI L, SHI Q. Quantitative study of the microcrystal structure on coal based on needle coke with curve-fitted of XRD and Raman spectrum[J]. Spectrosc Spectral Anal,2017,37:1919−1924.
[25]	ZHU Y M, ZHAO X F, GAO L J, LI J, CHENG J X, LI L, SHI 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 Pak,2018,40:343−353.
[26]	WANG W Y, Yang Y Q, LUO H A, LIU W Y. Effect of additive (Co, La) for Ni-Mo-B amorphous catalyst and its hydrodeoxygenation properties[J]. Catal Commun,2010,11(9):803−807. doi: 10.1016/j.catcom.2010.02.019
[27]	ZHU Y M, ZHAO X F, CHENG J X, LIU W, LV J, WANG Y. Pyrolysis characteristics and properties of thermal conversion products on toluene soluble component from medium pitch[J]. Mater Rev,2017,31:109−114.
[28]	PETROVA B, TSYNTSARSKIi B, BUDINOVA T, PETER N, ANIA C O, PARRA J B, MLADENOV M, TZVETKOV P. Synthesis of nanoporous carbons from mixtures of coal tar pitch and furfural and their application as electrode materials[J]. Fuel Process Technol,2010,91(11):1710−1716. doi: 10.1016/j.fuproc.2010.07.008
[29]	WANG G, ESER S. Molecular composition of the high-boiling components of needle coke feedstocks and mesophase development[J]. Energy Fuels,2007,21(6):3563−3572.
[30]	张龙力, 王春岚, 赵元生, 杨国华, 杨朝合. 塔河常压渣油沥青质含硫官能团形态与其性质的关系研究[J]. 燃料化学学报,2012,40(9):1081−1085. doi: 10.3969/j.issn.0253-2409.2012.09.009 ZHANG Long-li, WANG Chun-lan, ZHAO Yuan-sheng, YANG Guo-hua, YANG Chao-he. Study on the relationship between the morphology of sulfur-containing functional groups and their properties in Tahe atmospheric residue asphaltenes[J]. J Fuel Chem Technol,2012,40(9):1081−1085. doi: 10.3969/j.issn.0253-2409.2012.09.009
[31]	RANAN M S, VICENTE S, ANCHEYTA J, DIAZ J A I. A review of recent advances on process technologies for upgrading of Heavy oils and residua[J]. Fuel,2007,86(9):1216−1231. doi: 10.1016/j.fuel.2006.08.004
[32]	ZHU Y, HUANG J, DAN Y, WANG, L, LI, D. Analysis and characterization of medium/low temperature coal tar asphaltene[J]. Acta Pet Sin,2016,32(2):334−342.
[33]	ECHEANDIA S, ARIAS P L, BARRRIO V L, PAWELEC B, FIERRO J L G. Synergy effect in the hdo of phenol over Ni-W catalysts supported on active carbon: Effect of tungsten precursors[J]. Appl Catal B: Environ,2010,101(1/2):1−12. doi: 10.1016/j.apcatb.2010.08.018
[34]	LAINE R M. Comments on the mechanisms of heterogeneous cataysis of the hydrodenitrogenation reaction[J]. Catal Rev Sci Eng,1983,25(3):459−474. doi: 10.1080/01614948308078053
[35]	NELSON N, LEVY, R B. The organic chemistry of hydrodenitrogenation[J]. J Catal,1979,58(3):485−488. doi: 10.1016/0021-9517(79)90286-0
[36]	ŞENOL O I, RYYMIN E M, VILJAVA T R, KRAUSE A O I. Effect of hydrogen sulphide on the hydrodeoxygenation of aromatic and aliphatic oxygenates on sulphided catalysts[J]. J Mol Catal A: Chem,2007,277(1):107−112.
[37]	SHI Q, PAN N, LONG H, CUI D H, GUO X F, LONG Y H, CHUNG K H, ZHAO S Q, XU C M, HSU C S. Characterization of middle-temperature gasification coal tar. Part 3: Molecular composition of acidic compounds[J]. Energy Fuels,2013,27:108−117. doi: 10.1021/ef301431y
[38]	JONES D G, ROTTENDORF H, WILSON M A, COLLION P J. Hydrogenation of liddell coal. yields and mean chemical structures of the products[J]. Fuel,1980,59(1):19−26. doi: 10.1016/0016-2361(80)90005-8
[39]	任志惠. 焦化重蜡油热处理制备针状焦[D]. 北京: 中国石油大学, 2007. REN Zhi-hui. Heat treatment of coking heavy wax oil to prepare needle coke[D]. Beijing: China University of Petroleum, 2007.
[40]	王亮. 原料组成对针状焦形成的影响[D]. 北京: 中国石油大学, 2009. WANG Liang. The effect of raw material composition on the formation of needle coke[D]. Beijing: China University of Petroleum, 2009.
[41]	QIAN S A. On the nature of the molecular structure of the soluble intermediate phase and its formation[J]. New Res Carbon Mater,1994,(2):1−3.
[42]	QIAN, S A. Basic principles of needle coke morphology and structure process[J]. China Pet Process Petrochem Technol,1998,(1):14−25.