Citation: YAN Zheng-hao, HE Run-xia, WANG Dan-dan, BAN Yan-peng, SONG Yin-min, LI Na, LIU Quan-sheng. Study on the transformation characteristics of microstructure in Shengli lignite during low-temperature oxidation[J]. Journal of Fuel Chemistry and Technology, ;2019, 47(4): 411-418. shu

Study on the transformation characteristics of microstructure in Shengli lignite during low-temperature oxidation

College of Chemical Engineering, Inner Mongolia University of Technolegy, Inner Mongolia Key Laboratory of High-Value Funtional Utilization of Low Rank Carbon Resources, Huhhot 010051, China

Corresponding author: HE Run-xia, runxiahe@imut.edu.cn LIU Quan-sheng, liuqs@imut.edu.cn
Received Date: 12 November 2018
Revised Date: 31 January 2019

Fund Project: the National Natural Science Foundation of China 21676149the National Natural Science Foundation of China 21566028The project was supported by the National Natural Science Foundation of China(21566028, 21676149) and Major Basic Research Open Programs of Inner Mongolia and Program on Scientific Research Project of Inner Mongolia

Figures(7)

A Shengli lignite from Inner Mongolia was selected as the research object, with which the low-temperature oxidation experiments were carried out at different temperatures (200-300℃) in a fixed bed reactor. The structure of coal samples after oxidation treatment was characterized by FT-IR, Raman and XPS. The effects of low-temperature oxidation at different temperatures on the microstructure and mass change of lignite were investigated and the combustion performance was determined by TGA. The results show that the temperature has a significant influence on mass change rate of Shengli lignite during low-temperature oxidation. The mass change rate of lignite is very limited when temperature is below 220℃ and it changes obviously when the temperature is higher than 220℃. Especially at 220-230℃, the mass change rate of coal samples is changed from 5.80% (220℃) to 42.55% (230℃). The FT-IR/Raman/XPS characterization results show that the analogous benzoquinone structure forms after oxidized at 220℃, and these lead to the stretching vibration absorption peak of the aromatic C=C shift to lower wavenumber. In Raman spectra, the position of the D peak shifts, and the distance between the peaks of D and G increases. The content of C-O-and C=O on the surface of coal samples increases at oxidation temperature lower than 220℃. It is speculated that the jump of mass change rate of coal samples at 220-230℃ is mainly related to the oxidative decomposition of analogous benzoquinone structure.
- Shengli lignite,
- low-temperature oxidation,
- microstructure,
- transformation characteristics,
- mass change rate
1. [1]
  SONG Hong-zhu. Study on the distribution characteristics and the exploration and development prospect of coal resource of China[D]. Beijing: China University of Geosciences, 2013.
2. [2]
  WANG Mei-jun, FU Chun-hui, CHANG Li-ping, XIE Ke-chang. Effect of fractional step acid treatment process on the structure and pyrolysis characteristics of Ximeng brown coal[J]. J Fuel Chem Technol, 2012,40(8):906-911. doi: 10.3969/j.issn.0253-2409.2012.08.002
3. [3]
  BARIS K, KIZGUT S, DIDARI V. Low-temperature oxidation of some Turkish coals[J]. Fuel, 2012,93(1):423-432.
4. [4]
  KUCUK A, KADIOGLU Y, GULABOGLU M S. A study of spontaneous combustion characteristics of a Turkish lignite:Particle size, moisture of coal, humidity of air[J]. Combust Flame, 2003,133(3):255-261. doi: 10.1016/S0010-2180(02)00553-9
5. [5]
  SU H T, ZHOU F B, LI J S, QI H N. Effects of oxygen supply on low-temperature oxidation of coal:A case study of Jurassic coal in Yima, China[J]. Fuel, 2017,202:446-454. doi: 10.1016/j.fuel.2017.04.055
6. [6]
  ZHOU Pei-ran. Infrared spectroscopy study on the change of low temperature oxidation structure of coal[J]. Coal Convers, 2014,37(1):15-18. doi: 10.3969/j.issn.1004-4248.2014.01.004
7. [7]
  LI B, CHEN G, ZHANG H, SHENG G D. Development of non-isothermal TGA-DSC for kinetics analysis of low temperature coal oxidation prior to ignition[J]. Fuel, 2014,118(8):385-391.
8. [8]
  ZHOU C H, ZHANG Y L, WANG J F, XUE S, WU J M, CHANG L P. Study on the relationship between microscopic functional group and coal mass changes during low-temperature oxidation of coal[J]. Int J Coal Geol, 2017,171:212-222. doi: 10.1016/j.coal.2017.01.013
9. [9]
  QI X Y, CHEN L Z, ZHANG L B, BAI C W, XIN H H, RAO Z. In situ FT-IR study on real-time changes of active groups during lignite reaction under low oxygen concentration conditions[J]. J Energy Inst, 2018:1-10.
10. [10]
  WANG H, DLUGOGORSKI B Z, KENNEDY E M. Thermal decomposition of solid oxygenated complexes formed by coal oxidation at low temperatures[J]. Fuel, 2002,81(15):1913-1923. doi: 10.1016/S0016-2361(02)00122-9
11. [11]
  XUE Bing, LI Zai-feng, CHEN Xing-quan, LI Yong-xin, AGARWAL P K. Mechanism study on low temperature oxidation process of low rank coal under dry oxygen[J]. Coal Convers, 2006,29(2):12-15. doi: 10.3969/j.issn.1004-4248.2006.02.004
12. [12]
  GE Ling-mei, XUE Han-ling, XU Jing-cai, DENG Jun, ZHANG Xin-hai. Analysis of the oxidation mechanism of reactive groups in coal molecules[J]. Coal Convers, 2001,24(3):23-28. doi: 10.3969/j.issn.1004-4248.2001.03.006
13. [13]
  WANG Cai-ping, DENG Jun, WANG Wei-feng. FT-IR experimental study of active groups in low temperature oxidation of coal[J]. Electron World, 2012(18):74-75.
14. [14]
  LI Tao, ZHANG Xin-hai, WU Kang-hua, WANG Nan. Research on coal low temperature oxidation with FTIR[J]. Value Eng, 2011,30(21):32-33. doi: 10.3969/j.issn.1006-4311.2011.21.022
15. [15]
  CHU Ting-xiang, YANG Sheng-qiang, SUN Yan, SUN Jing-kai, LIU Zeng-ping. Experimental study on low temperature oxidization of coal and its infrared spectrum analysis[J]. CSSJ, 2008,18(1):171-177. doi: 10.3969/j.issn.1003-3033.2008.01.030
16. [16]
  WANG G H, ZHOU A N. Time evolution of coal structure during low temperature air oxidation[J]. Int J Min Sci Technol, 2012,22(4):517-521. doi: 10.1016/j.ijmst.2012.01.013
17. [17]
  QI X Y, WANG D M, XIN H H, QI G S. An in situ testing method for analyzing the changes of active groups in coal oxidation at low temperatures[J]. Spectr Lett, 2014,47(7):495-503. doi: 10.1080/00387010.2013.817433
18. [18]
  FUJITSUKA H, ASHIDA R, KAWASE M, MIURA K. Examination of low-temperature oxidation of low-rank coals, aiming at understanding their self-ignition tendency[J]. Energy Fuels, 2014,28(4):2402-2407. doi: 10.1021/ef402484u
19. [19]
  DONG Qing-nian, CHEN Xue-yi, JIN Guo-qiang, GU Yong-da. In-situ study of low temperature oxidation of lignite by infrared emission spectroscopy[J]. J Fuel Chem Technol, 1997,25(4):333-338.
20. [20]
  SONG Yin-min, LI Na, BAN Yan-peng, TENG Ying-yue, ZHI Ke-duan, HE Run-xia, ZHOU Hua-cong, LIU Quan-sheng. Microstructure evolution characteristics of Shengli lignite during combustion process[J]. J Fuel Chem Technol, 2017,45(12):1417-1423. doi: 10.3969/j.issn.0253-2409.2017.12.002
21. [21]
  LI Y, WANG Z H, HUANG Z Y, LIU J Z, ZHOU J H, CEN K F. Effect of pyrolysis temperature on lignite char properties and slurrying ability[J]. Fuel Process Technol, 2015,134:52-58. doi: 10.1016/j.fuproc.2015.01.007
22. [22]
  SHI Jin-ming, XIANG Jun, HU Song, SUN Lu-shi, SU Sheng, XU Chao-fen, XU Kai. Change of coal structure during washing process[J]. CIESC J, 2010,61:3220-3227.
23. [23]
  YURUM Y, ALTUNTAS N. Air oxidation of Beypazari lignite at 50℃, 100℃ and 150℃[J]. Fuel, 1998,77(15):1809-1814. doi: 10.1016/S0016-2361(98)00067-2
24. [24]
  WU Q S, LI S P. Effect of surfactant/silica and hydrothermal time on the specific surface area of mesoporous materials from coal-measure kaolin[J]. J Wuhan Univ Technol, 2011,26(3):514-518. doi: 10.1007/s11595-011-0259-4
25. [25]
  FERRARI A C, ROBERTSON J. Interpretation of Raman spectra of disordered and amorphous carbon[J]. Phys Rev B, 2000,61(20):14095-14107. doi: 10.1103/PhysRevB.61.14095
26. [26]
  FERREIRA E H M, MOUTINHO M V O, STAVALE F, LUCCHESE M M, CAPAZ R B, ACHETE C A, JORIO A. Evolution of the Raman spectra from single-, few-, and many-layer graphene with increasing disorder[J]. Phys Rev B, 2010,82(12):4079-4085.
27. [27]
  CHEN Wang, JIAO Na, XU Liang-hua, CAO Wei-yu. Transition of sp² hybridization structure during graphitization of carbon fiber[J]. Aerosp Mater Technol, 2013,43(5):46-48. doi: 10.3969/j.issn.1007-2330.2013.05.010
28. [28]
  LI X J, HAYASHI J, LI C Z. Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal. Part Ⅷ. Catalysis and changes in char structure during gasification in steam[J]. Fuel, 2006,85(10):1518-1525.
29. [29]
  DATSYUK V, GUERRET-PIECOURT C, DAGREOU S, BILLON L, DUPIN J C, FLAHAUT E, PEIGNEY A, LAURENT C. Double walled carbon nanotube/polymer composites via in situ nitroxide mediated polymerisation of amphiphilic block copolymers[J]. Carbon, 2005,43(4):873-876. doi: 10.1016/j.carbon.2004.10.052
30. [30]
  ZHANG N, XIE J, VARADAN V. Functionalization of carbon nanotubes by potassium permanganate assisted with phase transfer catalyst[J]. Smart Mater Struct, 2002,11(6):962-965. doi: 10.1088/0964-1726/11/6/318
31. [31]
  AGO H, KUGLER T, CACIALLI F, SALANECK W R, SHAFFER M S P, WINDLE A H, FRIEND R H. Work functions and surface functional groups of multiwall carbon nanotubes[J]. J Phys Chem B, 1999,103(38):8116-8121. doi: 10.1021/jp991659y
32. [32]
  CHANG Hai-zhou, WANG Chuan-ge, ZENG Fan-gui, LI Jun, LI Wen-ying, XIE Ke-chang. XPS comparative analysis of coal macerals with different reducibility[J]. J Fuel Chem Technol, 2006,34(4):389-394. doi: 10.3969/j.issn.0253-2409.2006.04.002
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