Citation: CHANG Qing-hua, LI Hong-jun, CUI Tong-min, FAN Wen-ke, YU Guang-suo, WANG Fu-chen. Effect of moisture content on gas release and pore structure development of wetted Shenfu coal during rapid pyrolysis[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(4): 427-435. shu

Effect of moisture content on gas release and pore structure development of wetted Shenfu coal during rapid pyrolysis

CHANG Qing-hua ^1,2 ,
LI Hong-jun ^1,2 ,
CUI Tong-min ^1,2 ,
FAN Wen-ke ^1,2 ,
YU Guang-suo ^1,2 ,
WANG Fu-chen ^1,2,*,,

1.
Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science & Technology, Shanghai 200237, China
2.
Collaborative Innovation Center of Chemical Technology for Coal Based Energy, Shanghai 200237, China

Corresponding author: WANG Fu-chen, wfch@ecust.edu.cn
Received Date: 28 December 2016
Revised Date: 27 February 2017

Figures(12)

The rapid pyrolysis experiments of Shenfu coal with various moisture content prepared by adding water were conducted in a high-frequency furnace to study the influence of moisture content on the thermal behavior. The gas composition and the structure properties of char were analyzed. The result shows that the gas yield and the maximal release rate decrease when the moisture content of coal increases. After pyrolysis, both BET surface and pore volume increase with increasing moisture. Compared to the char from dry coal pyrolysis, the char from pyrolysis of coal with high moisture content has more developed pore structure with more micropores. Furthermore, the moisture can inhabit the occurrence of pore obstruction and collapse during rapid pyrolysis, and also contribute to the enhancement of the surface roughness and the pore structure complexity.
- wet coal,
- rapid pyrolysis,
- gas release,
- pore structure
1. [1]
  WANG Fu-chen, YU Guang-suo, GONG Xin, LIU Hai-feng, WANG Yi-fei, LIANG Qin-feng. Research and development of large-scale coal gasification technology[J]. Chem Ind Eng Prog, 2009,28(2):173-180.
2. [2]
  RAMIN, LESLIE, ISAACS. Drying kinetics of lignite, subbituminous coals, and high-volatile bituminous coals[J]. Energy Fuels, 1990,4(5):448-452. doi: 10.1021/ef00023a007
3. [3]
  LI X C, SONG H, WANG Q, MEESRI C, WALL T, YU J L. Experimental study on drying and moisture re-adsorption kinetics of an Indonesian low rank coal[J]. J Environ Sci, 2009,21(s1):127-130.
4. [4]
  WANG H H. Kinetic analysis of dehydration of a bituminous coal using the TGA technique[J]. Energy Fuels, 2007,21(6):3070-3075. doi: 10.1021/ef070170y
5. [5]
  PATISSON F, ETIENNE L, HANROT F, ABLITZER D, HOUZELOT J L. Coal pyrolysis in a rotary kiln:Part I. Model of the pyrolysis of a single grain[J]. Metall Mater Trans B, 2000,31(2):381-390. doi: 10.1007/s11663-000-0056-5
6. [6]
  DING L, ZHOU Z J, DAI Z H, YU G S. Effects of coal drying on the pyrolysis and in-situ gasification characteristics of lignite coals[J]. Appl Energy, 2015,155:660-670. doi: 10.1016/j.apenergy.2015.06.062
7. [7]
  ZHOU Z J, DING L, WU L, LIN S J, CUI T M, YU G S. Comparison of structure and gasification reactivity of rapid pyrolysis chars of coal water slurries and parent coals[J]. Energy Technol, 2014,2(3):284-291. doi: 10.1002/ente.v2.3
8. [8]
  HAYASHI J, NORINAGA K, YAMASHITA T, TADATOSHI C. Effect of sorbed water on conversion of coal by rapid pyrolysis[J]. Energy Fuels, 1999,13(3):611-616. doi: 10.1021/ef980186b
9. [9]
  YIP K, WU H W, ZHANG D K. Effect of inherent moisture in collie coal during pyrolysis due to in-situ steam gasification[J]. Energy Fuels, 2007,21(5):2883-2891. doi: 10.1021/ef7002443
10. [10]
  CAI Z, CLAYTON S, WU H W, HAYASHI J, LI C Z. Effects of dewatering on the pyrolysis and gasification reactivity of Victorian brown coal[J]. Energy Fuels, 2007,21(2):399-404. doi: 10.1021/ef060404y
11. [11]
  WU Lei, ZHOU Zhi-jie, WANG Xin-jun, YU Guang-suo, WANG Fu-chen. Structure changes and gasification reactivity of CWS char from Shenfu coal rapid pyrolysis[J]. J Fuel Chem Technol, 2013,41(4):422-429.
12. [12]
  CUI Tong-min, LI Chao, ZHOU Zhi-jie, CHANG Qing-hua, GAO Rui, YU Guang-suo, WANG Fu-chen. Rapid pyrolysis characteristic of Shenfu bituminous coal[J]. J Fuel Chem Technol, 2015,43(11):1287-1294.
13. [13]
  BUTUZOVA L, MARIA R, KRZTON A, MINKOVA V. The effect of water on the yield and structure of the products of brown coal pyrolysis and hydrogenation[J]. Fuel, 1998,77(6):639-643. doi: 10.1016/S0016-2361(97)00212-3
14. [14]
  HU Er-feng, ZHANG chun, WU Rong-cheng, FU Xiao-heng, XU Guang-wen. Pyrolysis of coal with different moisture contents in fixed-bed reactor with internals[J]. CIESC J, 2015,66(7):2656-2663.
15. [15]
  PRATIONOA W, ZHANG J, CUI J F, WANG Y T, ZHANG L. Influence of inherent moisture on the ignition and combustion of wet Victorian brown coal in air-firing and oxy-fuel modes:Part 1:The volatile ignition and flame propagation[J]. Fuel Process Technol, 2015,138:670-679. doi: 10.1016/j.fuproc.2015.07.008
16. [16]
  LIU Hui, WU Shao-hua, SUN Rui, XU Rui, QIU Peng-hua, LI Ke-fu, QIN Yu-kun. Specific area and pore structure of lignite char under the condition of fast pyrolysis[J]. Proc CSEE, 2005,25(12):86-90.
17. [17]
  XIE Ke-chang. Coal Structure and Its Reactivity[M]. Beijing:Science Press, 2002.
18. [18]
  YAO Y, LIU D, TANG D, TANG S, HUANG W. Fractal characterization of adsorption-pores of coals from North China:An investigation on CH₄ adsorption capacity of coals[J]. Int J Coal Geol, 2008,73(1):27-42. doi: 10.1016/j.coal.2007.07.003
19. [19]
  PYUN S I, RHEE C K. An investigation of fractal characteristics of mesoporous carbon electrodes with various pore structures[J]. Electrochim Acta, 2004,49(24):4171-4780. doi: 10.1016/j.electacta.2004.04.012
20. [20]
  PFEIFER P, AVNIR D. Chemistry nonintegral dimensions between two and three[J]. Chem Phys, 1983,79(7):3369-3558.
21. [21]
  XU Shen-qi. Gasification kinetics study of coal char and unburned carbon in slag[D]. Shanghia:East China University of Science and Technology, 2010.
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