Home

Citation: YE Zi-qing, ZHOU Zhi-jie, CUI Tong-min, YU Guang-suo. Volatile release and morphologic change of Xinjiang Houxia coal in a drop tube furnace[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(10): 1172-1177. shu

Volatile release and morphologic change of Xinjiang Houxia coal in a drop tube furnace

1.
Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, Shanghai Engineering Research Center of Coal Gasification, East China University of Science & Technology, Shanghai 200237, China

Corresponding author: ZHOU Zhi-jie,
Received Date: 3 May 2014
Available Online: 21 June 2014
Fund Project: 国家自然科学基金(21376081)。 (21376081)

To investigate the morphology change of raw coal during fast pyrolysis and its effect on the coal char gasification reactivity, the specific surface area (SSA), average pore size, particle size distribution and morphology of Xinjiang Houxia coal and the fast pyrolysis coal char from the drop tube furnace were analyzed, and the chars were gasified with TGA (thermogravimetric analyzer). The results show that with the increase of pyrolysis temperature, the change of specific surface area (SSA) and average pore size has different trends. Besides fragmentation, swelling and agglomeration also occur in the fast pyrolysis process. The gasification of fragments is different, and the gasification stability of char under 1 200 ℃ is best.
- drop tube furnace,
- pyrolysis,
- gasification,
- swelling,
- agglomeration
1. [1]
  [1] HUO W, ZHOU Z J, WANG F C, YU G S. Mechanism analysis and experimental verification of pore diffusion on coke and coal char gasification with CO₂[J]. Chem Eng J, 2014, 244: 227-233.
2. [2]
  [2] LI P, YU Q B, QIN Q, LEI W. Kinetics of CO₂/coal gasification in molten blast furnace slag[J]. Ind Eng Chem Res, 2012, 51(49): 15872-15883.
3. [3]
  [3] CHOI Y C, LI X Y, PARK T J, KIM J H, LEE J G. Numerical study on the coal gasification characteristics in a entrained flow coal gasifier[J]. Fuel, 2001, 80(15): 2193-2201.
4. [4]
  [4] DU S W, CHEN W H, LUCAS J A. Pulverized coal burnout in blast furnace simulated by a drop tube furnace[J]. Energy, 2010, 35(2): 576-581.
5. [5]
  [5] ICHIKAWA K, KAJITANI S, OKI Y, INUMARU J. Study on char deposition characteristics on the heat exchanger tubein a coal gasifier-relationship between char formation and deposition characteristics[J]. Fuel, 2004, 83(7/8): 1009-1017.
6. [6]
  [6] LESTER E, CLOKE M. The characterisation of coals and their respective chars formed at 1300℃ in a drop tube furnace[J]. Fuel, 1999, 78(14): 1645-1658.
7. [7]
  [7] ZHANG Y, KAJITANI S, ASHIZAWA M, OKI Y. Tar destruction and coke formation during rapid pyrolysis and gasification of biomass in a drop-tube furnace[J]. Fuel, 2010, 89(2): 302-309.
8. [8]
  [8] MATSUOKA K, MA Z X, AKIHO H, ZHANG Z G, TOMITA A. High-pressure coal pyrolysis in a drop tube furnace[J]. Energy Fuels, 2003, 17(4): 984-990.
9. [9]
  [9] 陈路, 周志杰, 刘鑫, 袁帅, 王辅臣. 煤快速热解焦的微观结构对其气化活性的影响[J]. 燃料化学学报, 2012, 40(6): 649-654. (CHEN Lu, ZHOU Zhi-jie, LIU Xin, YUAN Shuai, WANG Fu-chen. Effect of microstructure of rapid pyrolysis char on its gasification reactivity[J]. Journal of Fuel Chemistry and Technology, 2012, 40(6): 649-654.)
10. [10]
  [10] 李兴龙, 许慎启, 周志杰, 于广锁. 热解条件对淮南煤焦孔隙结构的影响[J]. 煤炭转化, 2009, 32(4): 9-12. (LI Xing-long, XU Shen-qi, ZHOU Zhi-jie, YU Guang-suo. Effect of pyrolysis condition on the pore structure of Huainan coal char[J]. Coal Conversion, 2009, 32(4): 9-12.)
11. [11]
  [11] XU S Q, ZHOU Z J, YU G S, WANG F C. Effects of pyrolysis on the pore structure of four Chinese coals[J]. Energy Fuel, 2010, 24(2): 1114-1123.
12. [12]
  [12] ZHANG H T, CEN K F, YAN J H, NI M J. The fragmentation of coal particles during the coal combustion in a fluidized bed[J]. Fuel, 2002, 81(14): 1835-1840.
13. [13]
  [13] SENNECA O, URCIUOLO M, CHIRONE R, CUMBO D. An experimental study of fragmentation of coals during fast pyrolysis at high temperature and pressure[J]. Fuel, 2011, 90(9): 2931-2938.
14. [14]
  [14] SENNECA O, URCIUOLO M, CHIRONE R. A semidetailed model of primary fragmentation of coal[J]. Fuel, 2013, 104: 253-261.
15. [15]
  [15] DACOMBE P J, HAMPARTSOUMIAN E, POURKASHANIAN M. Fragmentation of large particles in a drop-tube furnace[J]. Fuel, 1994, 73(8): 1365-1367.
16. [16]
  [16] BADZIOCH S, HAWKSLEY P G W. Kinetics of thermal decomposition of pulverized coal particles[J]. Ind Eng Chem Process Des Dev, 1970, 9(4): 521-530.
1. [1]
  Limei CHEN , Mengfei ZHAO , Lin CHEN , Ding LI , Wei LI , Weiye HAN , Hongbin WANG . Preparation and performance of paraffin/alkali modified diatomite/expanded graphite composite phase change thermal storage material. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 533-543. doi: 10.11862/CJIC.20230312
2. [2]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067
3. [3]
  Yang Lv , Yingping Jia , Yanhua Li , Hexiang Zhong , Xinping Wang . Integrating the Ideological Elements with the “Chemical Reaction Heat” Teaching. University Chemistry, 2024, 39(11): 44-51. doi: 10.12461/PKU.DXHX202402059
4. [4]
  Yahui HAN , Jinjin ZHAO , Ning REN , Jianjun ZHANG . Synthesis, crystal structure, thermal decomposition mechanism, and fluorescence properties of benzoic acid and 4-hydroxy-2, 2′: 6′, 2″-terpyridine lanthanide complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 969-982. doi: 10.11862/CJIC.20240395

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(354)
HTML views(17)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return