Citation: WU Lei, ZHOU Zhi-jie, WANG Xing-jun, YU Guang-suo, WANG Fu-chen. Structure changes and gasification reactivity of CWS char from Shenfu coal rapid pyrolysis[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(4): 422-429. shu

Structure changes and gasification reactivity of CWS char from Shenfu coal rapid pyrolysis

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Key Laboratory of Coal Gasification, Ministry of Education, East China University of Science & Technology, Shanghai 200237, China

Corresponding author: ZHOU Zhi-jie,
Received Date: 16 August 2012
Available Online: 14 October 2012

The rapid pyrolysis of the CWS and raw coal from Shenfu coalfield was carried out in a high-frequency furnace. The pyrolysis temperature ranged from 600 ℃ to 1 200 ℃ with an interval of 100 ℃. The effects of temperature on the yields of char and char-C were investigated. The structure of chars obtained were characterized by using XRD, N₂ gas adsorption method and SEM; and the CO₂ gasification reactivity of chars was examined using TGA (thermogravimetric analyzer). The results show that with the increasing of pyrolysis temperature, the yields of char and char-C for both CWS and raw coal decrease. When the pyrolysis temperature is lower than 900 ℃, the yields of char and char-C for CWS are nearly the same as that for raw coal, and when the pyrolysis temperature is higher than 900 ℃,the yields of char and char-C for CWS become much lower than those for raw coal. The degree of graphitization and the regularity of microcrystal structure of CWS chars are slightly higher than that of raw coal chars, and the specific surface area of CWS chars is also much higher than that of raw coal chars. The gasification reactivity of CWS chars is greater than that of raw coal chars.
- CWS,
- rapid pyrolysis,
- specific surface area,
- gasification reactivity
1. [1]
  [1] NELSON P F, SMITH I W, TYLER R J, MACKIES J C. Pyrolysis of coal at high temperature[J]. Energy Fuels, 1988, 2(4): 391-400.
2. [2]
  [2] SOLOMON P R, SERIO M A, CARANGELO R M, MARKHAM J R. Very rapid coal pyrolysis[J]. Fuel, 1986, 65(2): 182-194.
3. [3]
  [3] 李庆钊, 赵长遂, 陈晓平, 武卫芳, 李英杰. O₂/CO₂气氛煤焦的燃烧及其空隙结构变化[J]. 化工学报,2008, 59(11): 2891-2897. (LI Qing-zhao, ZHAO Chang-sui, CHEN Xiao-ping, WU Wei-fang, LI Ying-jie. Combustion of pulverized coal in O₂/CO₂ mixtures and its pore structure development[J]. Journal of Chemical Industry and Engineering(China),2008, 59(11): 2891-2897.)
4. [4]
  [4] 王杰, 颜涌捷, 薛为岚, 陈林, 王劲. 神府烟煤和黄天棉褐煤的快速热解[J]. 华东化工学院学报,1993, 19(4): 432-436. (WANG Jie, YAN Yong-jie, XUE Wei-lan, CHEN Lin, WANG Jin. Rapid pyrolysis of Shenfu bituminous coal and Huangtianmian lignite[J]. Journal of East China Institute of Chemical Technology, 1993, 19(4): 432-436.)
5. [5]
  [5] 金晶, 张忠孝, 张建民. 再燃条件下超细煤粉热解碳氢组分的析出特性[J]. 化工学报, 2007, 58(1): 217-221. (JIN Jing, ZHANG Zhong-xiao, ZHANG Jian-min. Release behavior of hydrocarbon components of superfine pulverized coal pyrolyzed under reburning conditions[J]. Journal of Chemical Industry and Engineering(China), 2007, 58(1): 217-221.)
6. [6]
  [6] 周军, 张海, 吕俊复, 岳光溪. 高温下热解温度对煤焦孔隙结构的影响[J]. 燃料化学学报, 2007, 35(2): 155-159. (ZHOU Jun, ZHANG Hai, LU Jun-fu, YUE Guang-xi. Effect of pyrolysis temperature on porous structure of anthracite chars produced at high temperature[J]. Journal of Fuel Chemistry and Technology, 2007, 35(2): 155-159.)
7. [7]
  [7] WANG H, JIANG X, LIU H, WU S. Fast pyrolysis comparison of coal-water slurry with its parent coal in Curie-Point pyrolyser[J]. Energy Convers Manage, 2009, 50(8): 1976-1980.
8. [8]
  [8] 孟德润, 赵翔, 周俊虎, 岑可法. 水煤浆热解过程中HCN和NH₃释放特性的分析[J]. 热能动力工程, 2006, 21(4): 394-396. (MENG De-run, ZHAO Xiang, ZHOU Jun-hu, CEN Ke-fa. Formation of HCN and NH₃ during the pyrolysis of coal-water slurry[J]. Journal of Engineering for Thermal Energy and Power, 2006, 21(4): 394-396.)
9. [9]
  [9] 王辉, 姜秀明, 袁德权, 万鹏. 水煤浆挥发分热解的FG-DVC模型[J]. 化工学报, 2006, 57(10): 2428-2432. (WANG Hui, JIANG Xiu-min, YUAN De-quan, WAN Peng. Pyrolysis of coal water slurry volatile matter by using FG-DVC model[J]. Journal of Chemical Industry and Engineering(China), 2006, 57(10): 2428-2432.)
10. [10]
  [10] 齐永锋, 章明川, 张健, 田风国. 超细煤粉快速热解动力学特性试验研究[J]. 化学工程, 2009, (3): 62-65, 74. (QI Yong-feng, ZHANG Ming-chuan, ZHANG Jian, TIAN Feng-guo. Experimental investigation on fast pyrolysis kinetic characteristics of micro-pulverized coal[J]. Chemical Engineering(China), 2009(3): 62-65, 74.)
11. [11]
  [11] CHEN L, ZENG C, GUO X, MAO Y, ZHANG Y , ZHANG X, LI W, LONG Y, ZHU H, EITENEER B, ZAMANSKY V. Gas evolution kinetics of two coal samples during rapid pyrolysis[J]. Fuel Process Technol, 2010, 91(8): 848-852
12. [12]
  [12] 谢克昌. 煤的结构与反应性[M]. 北京:科学出版社, 2002: 94-99. (XIE Ke-chang. Coal structure and its reactivity[M]. Beijing: Science Press, 2002: 94-99.)
13. [13]
  [13] LIMING L, SAHAJWALLA V, HARRIS D. Characteristics of chars prepared from various pulverized coals at different temperatures using drop-tube furnace[J]. Energy Fuels, 2000, 14(4): 869-876.
14. [14]
  [14] 常海州, 蔡雪梅, 李改仙, 白官, 吕秀清. 不同还原程度煤显微组分堆垛结构表征[J]. 山西大学学报(自然科学版), 2008, 31(2): 223-227. (CHANG Hai-zhoug, CAI Xue-mei, LI Gai-xian, BAI Guan, LV Xiu-qing. Characterization for the stacking structure of coal macerals with different type reductivity[J]. Journal of Shanxi University(Nat.Sci.Ed), 2008, 31(2): 223-227.)
15. [15]
  [15] BRAGG W L. The diffraction of short electromagnetic waves by a crystal[J]. Proceedings of the Cambridge Philosophical Society, 1913, 17: 43-57.
16. [16]
  [16] PATTERSON A. The Scherrer formula for X-ray partical size determination[J]. Phys Rev, 1939, 56: 978-982.
17. [17]
  [17] 杨帆, 周志杰, 王辅臣, 刘海峰, 龚欣, 于遵宏. 氢气存在下的煤焦水蒸气气化:Ⅰ反应特性研究[J]. 燃料化学学报, 2009, 37(1): 36-41. (YANG Fan, ZHOU Zhi-jie, WANG Fu-chen, LIU Hai-feng, GONG Xin, YU Zhong-hong. Coal char gasification with steam and H₂:ⅠThe gasification reaction characteristics[J]. Journal of Fuel Chemistry and Technology, 2009, 37(1): 36-41.)
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