芳香类重质油基针状焦的制备及表征

doi:10.11896/cldb.21070270

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (5057KB)
Export: BibTeX | EndNote (RIS)

Abstract Needle coke was a kind of widely used artificial carbon material, which was usually used as the raw material for the production of ultra-high power graphite electrode and lithium-ion anode graphite materials. The quality of needle coke was generally affected by the basic physical properties of raw materials, and the quality of needle coke have great affects on properties of its' derived graphite materials. In order to further investigate the feasibility of preparing high quality needle coke from aromatic heavy oil, the kilogram grade experiment was carried out in a delayed coking plant with Mixed oil (MO) and distillate of ethylene oil (EPO) as raw materials, respectively. The molecular structure and pyrolysis characteristics of the heavy oils were characterized by FTIR and TGA analysis, respectively. The parameters include optical microstructure, surface morphology, crystal structure, form of microcrystalline existence and conductivity the properties have been used to judge the property of derived needle coke. The results have shown that, the aromatic index (I_ar) of MO and EPO were 0.592 7 and 0.569 4, the branched index (CH₃/CH₂) were 0.351 6 and 0.228 3, respectively. The content of fibrous structure in the derived needle coke (MO-Coke and EPO-Coke) obtained from the delayed coking of MO and EPO were 47.68% and 57.40%, respectively. The surfaces of these two needle cokes were presented as smooth and graphite-like lamellar structures. What's more, the lateral sizes of MO-Coke and EPO-Coke were 2.73 nm and 3.50 nm, the ideal graphitic lattice content reached 10.58% and 16.43%, the resistivity of MO-Coke and EPO-Coke were only 489 μΩ·m and 471 μΩ·m, respectively. In other words, both of the aromatic heavy oils (MO and EPO) were the promising raw materials to produce high quality needle coke.

Key words： aromatic heavy oil needle coke microstructure conductivity

Published: 10 June 2023 Online: 2023-06-19

CLC number:

TQ522.65

Fund:National Natural Science Foundation of China (22208138), Liaoning Provincial Department of Education Project (2020LNQN03), Natural Science Foundation of Liaoning Province (1600568530068, 20180551218), Excellent Talent Training Project of University of Science and Technology Liaoning (2018RC07), Graduate Education Reform of University of Science and Technology Liaoning (LKDYC202120).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHU Huihui
	XU Yunliang
	HU Chaoshuai
	CHU Hongyu
	ZHU Yaming
	CHENG Junxia
	ZHAO Xuefei

Cite this article:

ZHU Huihui,XU Yunliang,HU Chaoshuai, et al. Preparation and Characterization of Aromatic Heavy Oils-based Needle Coke[J]. Materials Reports, 2023, 37(11): 21070270-5.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.21070270 OR http://www.mater-rep.com/EN/Y2023/V37/I11/21070270

1 Ma Z H, Wei X Y, Liu G H, et al.Fuel, 2021,292, 119954.
2 Yang H J, Luo R Y, Han S Y, et al. Wear, 2010, 268(11), 1337.
3 Xing X H, Zhang X H, Zhang K, et al. Fullerenes Nanotubes and Carbon Nanostructures, 2019, 27(2), 97.
4 Wang J Z, Wang L Q, Chen M M, et al. New Carbon Materials, 2015, 30(2), 141.
5 Xu X Q, Cheng J X, Zhu Y M, et al. CIESC Journal, 2020, 71(6), 382 (in Chinese).
徐晓倩, 程俊霞, 朱亚明, 等. 化工学报, 2020, 71(6), 382.
6 Renat R G, Viacheslav A R, Vladimir G P, et al. ACS Omega, 2021, 30(6), 19995.
7 Zhang Z C,Du H, Guo S H, et al. Fuel, 2021, 301(9),120984.
8 Liu J, Shi X M, Fan X Y, et al. J Fuel Chem Technol, 2021, 49(4), 546 (in Chinese).
刘杰, 史雪梅, 崔楼伟, 等. 燃料化学学报, 2021, 49(4), 546.
9 Jiao S H, Guo A J, Wang F, et al. Fuel, 2021,285, 119169.
10 Lin X C, Sheng Z, Shao K K, et al.J Fuel Chem Technol, 2021, 49(2), 151 (in Chinese).
林雄超, 盛喆, 邵苛苛, 等. 燃料化学学报, 2021, 49(2), 151.
11 Qin F F, Jiang W, Ni G, et al.Acs Sustainable Chemistry & Engineering, 2019, 7(4), 4523.
12 Zhu Y M, Zhao C L, Xu Y L, et al.Energy & Fuels, 2019, 33(4), 3456.
13 Zhu Y M, Hu C S, Xu Y L, et al. Energy & Fuels, 2020, 34(2), 2126.
14 Zhu Y M, Liu H M, Xu Y L, et al. Energy & Fuels, 2020, 34(7), 8676.
15 Zhang Z C, Lou B, Zhao N, et al. Fuel, 2021,302, 121139.
16 Zhang Z C, Du H, Guo S H, et al. Fuel, 2021,301, 120984.
17 Li L, Lin X C, Zhang Y K, et al.Journal of Analytical and Applied Pyrolysis, 2020,150, 104889.
18 Pedro C P, José V C, óscar R L, et al.Carbon, 2016,98, 484.
19 Xing G Z, Wang F M, Zhang X H, et al. Materials Science and Technology, 2017, 25(4), 44 (in Chinese).
邢国政, 王富孟, 张晓华, 等. 材料科学与工艺, 2017,25(4), 44.
20 Wang Y, Dong Y W, Zhong C G, et al.New Carbon Mater, 2017, 32(5), 467 (in Chinese).
王颖, 董亚威, 钟存贵, 等. 新型炭材料, 2017, 32(5), 467.
21 Meng F R, Yu J L, Tahmasebi A, et al.Energy & Fuels, 2014,28, 275.
22 Han D Y, Cao Z B, Li Y F. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2014, 36(9), 993.
23 Arenillas A, Pevida C, Rubiera F, et al.Journal of Analytical & Applied Pyrolysis, 2004, 71(2), 747.
24 Sonibare O O, Haeger T, Foley S F.Energy, 2010, 35(12), 5347.
25 Zhu Y M, Zhao X F, Yuan J, et al.Carbon Letters, 2019, 29(1), 37.
26 Zhu Y M, Zhao X F, Cheng J X, et al. Materials Reports, 2017, 31(12), 109 (in Chinese).
朱亚明, 赵雪飞, 程俊霞, 等. 材料导报, 2017, 31(12), 109.
27 Rantitsch G, Bhattacharyya A, Schenk J, et al.International Journal of Coal Geology, 2014,130, 1.