Citation: Yang-yang YU, Qiang WEI, Feng WANG, Shou-hui JIAO, Zhi-peng QIU, Li-li WANG, He LIU, Kun CHEN, Ai-jun GUO. Carbonization characteristics of ethylene tar narrow fractions[J]. Journal of Fuel Chemistry and Technology, ;2022, 50(3): 376-384. doi: 10.1016/S1872-5813(21)60151-2 shu

Carbonization characteristics of ethylene tar narrow fractions

State Key Laboratory of Heavy Oil, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China

Corresponding author: Ai-jun GUO, ajguo@upc.edu.cn
Received Date: 24 June 2021
Revised Date: 2 August 2021

Figures(9)

In this study, the feasibility of using ethylene tar (ET) as raw material for needle coke production was investigated. The basic properties, structural compositions, and thermal stability of ethylene tar and its narrow fractions were studied by elemental analysis, Fourier transform-infrared spectroscopy (FT-IR), ¹H nuclear magnetic resonance (¹H NMR), the coke induction period, and simulation of thermal stability of coking feed. The properties of the products were analyzed by a polarized light microscope, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The results showed that the content of asphaltenes was up to 22.04% in ET, and the thermal stability was poor due to the high content of olefin and other thermally sensitive components. Thus, the coke induction period of ET was only 34 min. After distillation, narrow fractions had no asphaltenes and a low quantity of heat-sensitive components, resulting in improved fraction thermal stability with coke induction period of more than 55 min. Due to its narrow molecular distribution and low content of heat-sensitive components of narrow fractions, the semi-cokes formed from narrow fractions possessed better anisotropic and microcrystalline structures than those formed from the ET. Compared with one-stage carbonization, the two-stage carbonization was more conducive to the coalescence, development, and orientation of mesophase, leading to the formation of a fibrous wide-area streamline structure. The needle coke prepared from the fraction of ET-C had a lower thermal expansion coefficient (CTE), as low as 2.49 ×10⁻⁶ ℃⁻¹, meeting the CTE requirement of needle coke.
- ethylene tar,
- thermal stability,
- two-stage carbonization,
- needle coke
1. [1]
  LIU Jian-kun, JIANG Li-jing, YANG Tao, FANG Xiang-chen. Ethylene tar processing and utilization progress[J]. Chem Ind Eng Prog,2012,31(1):402−405.
2. [2]
  LIU Yu-min, MOU Yong-bo, QIAO Hai-yan, SHI Wei-wei, CAO Zu-bin. Research progress on comprehensive utilization of ethylene tar[J]. Mod Chem Ind,2020,40(6):42−46.
3. [3]
  ABRAHAMSON J P, WINCEK R T, ESER S. Scheme for hydrotreatment of fluid catalytic cracking decant oil with reduced hydrogen consumption and high needle coke yield upon carbonization[J]. Energy Fuels,2016,30(10):8150−8155. doi: 10.1021/acs.energyfuels.6b01443
4. [4]
  LIN Xiong-chao, SHENG Zhe, SHAO Ke-ke, XU De-ping, WANG Yong-gang. Influence of group component distribution of coal tar pitch on mesophase structure development of needle coke[J]. J Fuel Chem Technol,2021,49(2):151−159.
5. [5]
  JIAO S H, GUO A J, WANG F, YU Y Y, BERNARD W B, LIU H, CHEN K, LIU D, WANG Z X, SUN L Y. Sequential pretreatments of an FCC slurry oil sample for preparation of feedstocks for high-value solid carbon materials[J]. Fuel,2021,285:119169. doi: 10.1016/j.fuel.2020.119169
6. [6]
  MOCHIDA I, FEI Y Q, KORAI Y. A study of the carbonization of ethylene tar pitch and needle coke formation[J]. Fuel,1990,69(6):667−671. doi: 10.1016/0016-2361(90)90026-M
7. [7]
  YANG Wan-qiang. Effect of blending pretreatment ethylene tar on delayed coking unit[J]. Petrochem Technol Appl,2020,38(6):399−402. doi: 10.3969/j.issn.1009-0045.2020.06.010
8. [8]
  MA Wen-bin. Comparison of coking properties of heavy petroleum raw materials[J]. Pet Process Petrochem,2014,45(9):30−35. doi: 10.3969/j.issn.1005-2399.2014.09.015
9. [9]
  QIAN Shu-an, LI Chun-feng, ZHOU Guo-ying. The relationship between the composition and molecular structure of carbonizing feedstocks and mesophase texture formed in pyrolysis[J]. J Fuel Chem Technol,1984,12(4):348−360.
10. [10]
  DING Zong-yu. Extending the feedstock for needle coke production[J]. Pet Process Petrochem,1988,19(9):30−35.
11. [11]
  YOKONO T, OBARA T, SANADA Y, MARSH H. Carbonization of hydrogenated ethylene tar pitch; study of the pitch molecular compactness factor and coke optical texture[J]. Fuel,1986,65(2):300−301. doi: 10.1016/0016-2361(86)90028-1
12. [12]
  XIAO Zhi-jun, ZU De-guang. Study on production of needle coke form ethylene tar[J]. Acta Pet Sin (Pet Process Sect),1995,11(2):63−71.
13. [13]
  LI Rui, DING Zong-yu, ZU De-guang. Comprehensive utilization technology for tar form ethylene unit[J]. Pet Refin Eng,1998,28(4):16−21.
14. [14]
  ESER S, JENKINS R G, DERBYSHIRE F J, MALLADI M. Carbonization of coker feedstocks and their fractions[J]. Carbon,1986,24(1):77−82. doi: 10.1016/0008-6223(86)90213-7
15. [15]
  ESER S, DERBYSHIRE F J, KARSNER G G. Development of coke texture by thermal pretreatment of petroleum residua[J]. Fuel,1989,68(9):1146−1151. doi: 10.1016/0016-2361(89)90186-5
16. [16]
  MOCHIDA I, OYAMA T, KORAI Y. Formation scheme of needle coke from FCC decant oil[J]. Carbon,1988,26(1):49−55. doi: 10.1016/0008-6223(88)90008-5
17. [17]
  JIAO S H, GUO A J, WANG F, CHEN K, LIU H, UMMUL-KHAIRI I, WANG Z X, SUN L Y. Effects of olefins on mesophase pitch prepared from fluidized catalytic cracking decant oil[J]. Fuel,2020,262:116671. doi: 10.1016/j.fuel.2019.116671
18. [18]
  JIAO Shou-hui, LIN Xiang-qin, GUO Ai-jun, CHEN Kun, WANG Zong-xian, TONG Jia-jun, GENG Yu-xuan, LI Ruo-meng, LIU Qing-hao. Effect of characteristics of inferior residues on thermal coke induction periods[J]. J Fuel Chem Technol,2017,45(2):165−171. doi: 10.3969/j.issn.0253-2409.2017.02.005
19. [19]
  LIANG Wen-jie, QUE Guo-he, LIU Chen-guang. Petroleum Chemistry[M]. 2nd ed. Dongying: China University of Petroleum Press, 2008: 172.
20. [20]
  GUO A J, WANG F, JIAO S H, IBRAHIM U, LIU H, CHEN K, WANGZ X. Mesophase pitch production from FCC slurry oil: Optimizing compositions and properties of the carbonization feedstock by slurry-bed hydrotreating coupled with distillation[J]. Fuel,2020,262:116639. doi: 10.1016/j.fuel.2019.116639
21. [21]
  LI M, LIU D, LOU B, HOU X, CHEN P. Relationship between structural modification of aromatic-rich fraction from heavy oil and the development of mesophase microstructure in thermal polymerization process[J]. Energy Fuels,2016,30(10):8177−8184. doi: 10.1021/acs.energyfuels.6b01496
22. [22]
  CHENG Xiang-lin, ZHA Qing-fang, ZHONG Jing-tao, HOU Bao-hua, GUO Yan-sheng. Influence of alkyl group on the formation of needle coke[J]. J Fuel Chem Technol,2009,37(2):166−169. doi: 10.3969/j.issn.0253-2409.2009.02.008
23. [23]
  CHENG Jun-xia, ZHU Ya-ming, GAO Li-juan, ZHAO Xue-fei. Evolution of coke microcrystalline structure during calcination process of coal-based needle coke[J]. J Fuel Chem Technol,2020,48(9):1071−1078. doi: 10.3969/j.issn.0253-2409.2020.09.006
24. [24]
  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]. J Fuel Chem Technol,2021,49(4):546−553. doi: 10.1016/S1872-5813(21)60026-9
25. [25]
  YANG Cui-ding. Analysis Methods for Petrochemical Industry: RIPP Test Methods[M]. Beijing: Science Press, 2009: 63.
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