Citation: ZHANG Yu-kui, ZHANG Hai-xia, ZHU Zhi-ping. Physical and chemical properties of fly ash from fluidized bed gasification of Zhundong coal[J]. Journal of Fuel Chemistry and Technology, ;2016, 44(3): 305-313. shu

Physical and chemical properties of fly ash from fluidized bed gasification of Zhundong coal

1.
Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: ZHANG Hai-xia, zhanghaixia@iet.cn
Received Date: 1 July 2015
Revised Date: 12 October 2015

Fund Project: The project was supported by the National Natural Science Foundation of China 21306193

Figures(9)

The ash fusion characteristics, physical structure, chemical compositions and gasification reactivity of Zhundong coal (ZD) fly ash from fluidized bed gasification were explored by fusion point analyzer, X-ray fluorescence spectrometer (XRF), scanning electron microscopy (SEM), and thermo-gravimetric analyzer. The results show that the concentrations of minerals in ZD fly ash, such as SiO₂, Fe₂O₃, Na₂O, CaO, change greatly during gasification process, but the ash fusion temperature of ZD fly ash is similar to that of ZD. There is a wide particle-size distribution in ZD fly ash, which shows a significant bimodal distribution, and a large difference of elemental compositions for ZD fly ash of different particle size. The reactivity of ZD fly ash increases with the increase in gasification temperature. Compared with the ZD char from pyrolysis, the ZD fly ash has more advanced carbon crystalline structure, a larger surface area and is relatively rich in meso-pores and macro-pores, which results in a higher gasification reactivity.
- Zhundong coal,
- fluidized bed gasification,
- fusion characteristics,
- gasification reactivity
1. [1]
  CHEN Chuan, ZHANG Shou-yu, LIU Da-hai, GUO Xi, DONG Ai-xia, XIONG Shao-wu, SHI Da-zhong, LÜ Jun-fu. Existense form of sodium in high sodium coals from Xinjiang and its effect on combustion process[J]. J Fuel Chem Technol, 2013,41(7):832-838.
2. [2]
  DONG Ming-gang. Influence of high-sodium coal upon slagging, contamination, and corrosion on the heating surface of boilers[J]. Therm Power Gener, 2008,37(9):35-39.
3. [3]
  YANG Zhong-can, LIU Jia-li, HE Hong-guang. Study on properties of Zhundong coal in Xinjiang region and type-selection for boilers burning this coal sort[J]. Therm Power Gener, 2010,39(8):38-40+44.
4. [4]
  YU Qiang, ZHANG Jian-qiang. Effect of burning high-sodium coal on boiler heating surface[J]. Boiler Manuf, 2012(4):4-6.
5. [5]
  ZHANG Shou-yu, CHEN Chuan, SHI Da-zhong, LÜ Jun-fu, WANG Jian, GUO Xi, DONG Ai-xia, XIONG Shao-wu. Situation of combustion utilization of high sodium coal[J]. Proc CSEE, 2013,33(5):1-12+7.
6. [6]
  LIN C L, PENG T H, WANG W J. Effect of particle size distribution on agglomeration/defluidization during fluidized bed combustion[J]. Powder Technol, 2011,207(1/3):290-295.
7. [7]
  LI Zhen-zhu, MA Xiu-wei, LI Feng-hai, XUE Zhao-min, HUANG Jie-jie, FANG Yi-tian. Review on fly ash characteristics from coal gasification[J]. Appl Chem Ind, 2014,43(10):1891-1894+1898.
8. [8]
  MONDAL P, DANG G S, GARG M O. Syngas production through gasification and cleanup for downstream applications -recent developments[J]. Fuel Process Technol, 2011,92(8):1395-1410. doi: 10.1016/j.fuproc.2011.03.021
9. [9]
  YANG Xin, HUANG Jie-jie, FANG Yi-tian, WANG Yang. Slagging characteristics of fly ash from anthracite gasification in fludized bed[J]. J Fuel Chem Technol, 2013,41(1):1-8. doi: 10.1016/S1872-5813(13)60009-2
10. [10]
  OBOIRIEN B O, ENGELBRECHT A D, NORTH B C, ERAMUS R M, FALCON R. Mineral-Char interaction during gasification of high-ash coals in fluidized-bed gasification[J]. Energy Fuels, 2011,25(11):5189-5199. doi: 10.1021/ef201056j
11. [11]
  KELEBOPILE L, SUN R, LIAO J. Fly ash and coal char reactivity from Thermo-gravimetric (TGA) experiments[J]. Fuel Process Technol, 2011,92(6):1178-1186. doi: 10.1016/j.fuproc.2011.01.007
12. [12]
  LI Feng-hai, LI Zhen-zhu, HUANG Jie-jie, FANG Yi-tian. Characteristics of fine chars from fluidized bed gasification of Shenmu coal[J]. J Fuel Chem Technol, 2014,42(10):1153-1159. doi: 10.1016/S1872-5813(14)60046-3
13. [13]
  GU J, WU S, WU Y, LI Y, GAO J. Differences in gasification behaviors and related properties between entrained gasifier fly ash and coal char[J]. Energy Fuels, 2008,22(6):4029-4033. doi: 10.1021/ef800527x
14. [14]
  JING X, WANG Z, YU Z, ZHANG Q, LI C, FANG Y. Experimental and kinetic investigations of CO₂ gasification of fine chars separated from a pilot-Scale fluidized-bed gasifier[J]. Energy Fuels, 2013,27(5):2422-2430. doi: 10.1021/ef4002296
15. [15]
  JIANG Hai-bo, ZHU Zhi-ping, WANG Yue, YU Kuang-shi, LIU Jia-peng, LÜ Qing-gang. Coal gasification in fluidized bed[J]. Chem Eng, 2014,42(8):60-64.
16. [16]
  FAN Dong-mei. Characteristics study on pyrolysis and gasification of low rank coals[D]. Beijing: University of Chinese Academy of Sciences (Institute of Engineering Thermophysics), 2013.
17. [17]
  LI Wei, LI Shi-yuan, REN Qiang-qiang, LÜ Qing-gang, BAO Shao-lin. Combustion characteristics of residual carbon after gasification of coal from Ningxia Shigouyi[J]. Coal Convers, 2013,36(3):19-23.
18. [18]
  LIU Jing, WANG Zhi-hua, XIANG Fei-peng, HUANG Zhen-yu, LIU Jian-zhong, ZHOU Jun-hu, CEN Ke-fa. Models of occurence and transformation of alkali metals in Zhundong coal during combustion[J]. J Fuel Chem Technol, 2014,42(3):316-322.
19. [19]
  ZHAO Xiao-hui. Study on ash deposition in boiler based on modes of occurrence and transformation of mineral matters[D]. Hangzhou: Zhejiang University, 2007.
20. [20]
  LI F, HUANG J, FANG Y, WANG Y. Formation mechanism of slag during fluid-bed gasification of lignite[J]. Energy Fuels, 2011,25:273-280. doi: 10.1021/ef101268e
21. [21]
  DAVISON R L, NATUSCH D F S, WALLACE J R, Evans C A. Trace-elements in fly ash-dependence of concentration on particle-size[J]. Environ Sci Technol, 1974,8(13):1107-1113. doi: 10.1021/es60098a003
22. [22]
  MANZOORI A R, AGARWAL P K. The fate of organically bound inorganic elements and sodium-chloride during fluidized-bed combustion of high sodium, high sulfur low rank coals[J]. Fuel, 1992,71(5):513-522. doi: 10.1016/0016-2361(92)90148-H
23. [23]
  DONG Qian, ZHANG Hai-xia, ZHU Zhi-ping. Influence of pretreatment on Na content analysis of Zhundong coal[J]. Clean Coal Technol, 2015,21(2):82-86.
24. [24]
  WANG X, XU Z, WEI B, ZHANG L, YANG T, MIKULCIC H, DUIC N. The ash deposition mechanism in boilers burning Zhundong coal with high contents of sodium and calcium: A study from ash evaporating to condensing[J]. Appl Therm Eng, 2015,80:150-159. doi: 10.1016/j.applthermaleng.2015.01.051
25. [25]
  TAKARADA T, TAMAI Y, TOMITA A. Reactivities of 34 coals under steam gasification[J]. Fuel, 1985,64(10):1438-1442. doi: 10.1016/0016-2361(85)90347-3
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