Citation: WANG Yang, LI Hui, WANG Dong-xu, DONG Chang-qing, LU Qiang, LI Wen-yan. Relationship between coal ash fusibility and ash composition in terms of mineral changes[J]. Journal of Fuel Chemistry and Technology, ;2016, 44(9): 1034-1042. shu

Relationship between coal ash fusibility and ash composition in terms of mineral changes

WANG Yang ¹ ,
LI Hui ¹ ,
WANG Dong-xu ² ,
DONG Chang-qing ^1,*,, ,
LU Qiang ¹ ,
LI Wen-yan ²

1.
National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China
2.
School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China

Corresponding author: DONG Chang-qing, cqdong1@163.com
Received Date: 15 April 2016
Revised Date: 5 June 2016

Fund Project: the Fundamental Research Funds for the Central Universities 2015ZZD02the Major State Basic Research Development Program of China 2015CB251501National Nature Science Foundation of China 51276062the Major State Basic Research Development Program of China 973 program

Figures(11)

Coal ash and synthetic ash samples were used to detect effect of different ash components on ash fusion temperatures (AFTs). Thermodynamic database FactSage 7.0 was applied to simulate the melting process of ashes with different compositions, in order to provide theoretical basis for effect of ash components on ash fusibility. The reducing effect of Na₂O on AFTs is due to the replacement of anorthite by albite and nepheline. The increasing content of MgO can initially lower and then raise the AFTs. When MgO exceeds certain content, forsterite is generated and raise the AFTs. The raising effect of sulfur on AFTs is due to the replacement of diopside by forsterite and calcium sulfate. The increasing content of CaO can also initially lower and then raise the AFTs. When CaO exceeds certain level, Si migrates from minerals with low melting points to those with higher melting points, thus raising the AFTs. Na₂O is prior to CaO when being bound with silica-oxygen units to form minerals. The priority order of the oxides when being bound with CaO and silica-oxygen units is: Al₂O₃ > MgO > Fe₂O₃.
- ash fusibility,
- mineral conversion,
- thermodynamic simulation
1. [1]
  CROMPTON P, WU Y R. Energy consumption in China: Past trends and future directions[J]. Energy Econ, 2005,27(1):195-208. doi: 10.1016/j.eneco.2004.10.006
2. [2]
  CHEN W Y, XU R N. Clean coal technology development in China[J]. Energy Policy, 2010,38(5):2123-2130. doi: 10.1016/j.enpol.2009.06.003
3. [3]
  AINETOM , ACOSTAA , RINCONJ M, ROMERO M. Thermal expansion of slag and fly ash from coal gasification in IGCC power plant[J]. Fuel, 2006,85(16):2352-2358. doi: 10.1016/j.fuel.2006.05.015
4. [4]
  ZHANG Li-meng, DONG Xin-guang, LIU Ke, TAN Hou-zhang, WANG Xue-bin, WEI Bo. Effect of kaolin on ash slagging and mineral conversion of Zhundong coal[J]. J Fuel Chem Technol, 2015,43(10):1176-1181.
5. [5]
  ZHANG Jie, FENG Yu-zhao, ZHANG Zhi-hui. Boiler slagging reason analysis and prevention measures[J]. Boiler Technol, 2008,39(5):57-59.
6. [6]
  SONG Wen-jia. Fusibility, flow characteristics and rheological properties of coal ash in the ultra-high temperature gasifier[D]. Shanghai: East China University Science and Technology, 2011.
7. [7]
  MA Yan, HUANG Zhen-yu, TANG Hui-ru, WANG Zhi-hua, ZHOU Jun-hu, CEN Ke-fa. Mineral conversion of Zhundong coal during ashing process and the effect of mineral additives on its ahs fusion characteristics[J]. J Fuel Chem Technol, 2014,42(1):20-25.
8. [8]
  SONG W J, TANG L H, ZHU X D, WU Y Q, RONG Y Q, ZHU Z B, KOYAMA S. Fusibility and flow properties of coal ash and slag[J]. Fuel, 2009,88(2):297-304. doi: 10.1016/j.fuel.2008.09.015
9. [9]
  SONG W J, TANG L H, ZHU X D, WU Y Q, ZHU Z B, KOYAMA S. Prediction of Chinese coal ash fusion temperatures in Ar and H₂ atmospheres[J]. Energy Fuels, 2009,23(4):1990-1997. doi: 10.1021/ef800974d
10. [10]
  LIU B, HE Q H, JIANG Z H, XU R F, HU B X. Relationship between coal ash composition and ash fusion temperatures[J]. Fuel, 2013,105:293-300. doi: 10.1016/j.fuel.2012.06.046
11. [11]
  SEGGIANI M. Empirical correlations of the ash fusion temperatures and temperature of critical viscosity for coal and biomass ashes[J]. Fuel, 1999,78(9):1121-1125. doi: 10.1016/S0016-2361(99)00031-9
12. [12]
  WANG Yun-gang, ZHAO Qin-xin, MA Hai-dong, JIANG Wei-wei. Experimental study on ash fusion characteristics of Zhundong coal[J]. J Chin Soc Power Eng, 2013,33(11):841-846.
13. [13]
  YANG Guang, ZHANG Yan-wei, KOU Xi-wen, ZHOU Zhi-jun, WANG Zhi-hua, ZHOU Jun-hu, CEN Ke-fa. Mineral conversion and thermodynamic simulation of ash deposition during Zhundong coal combustion in boiler of thermal power plant[J]. J Fuel Chem Technol, 2015,43(10):1182-1187.
14. [14]
  MA Yong-jing. Study the effect of addictives on the fusibility of coal ash and its mechanism from a mineralogical point of view[D]. Taiyuan: Taiyuan University of Technology, 2012.
15. [15]
  LU Tao, ZHANG Lei, ZHANG Ye, FENG Yun, LI Han-xu. Effect of mineral composition on coal ash fusion temperature[J]. J Fuel Chem Technol, 2010,38(1):23-28.
16. [16]
  LI F, QIU J R, ZHENG C G, HU Y. The fusion characteristics and mineral species of blended coal ash[J]. J Eng Thermophys, 1998,19:112-116.
17. [17]
  WANG Y, XIANG Y, WANG D X, DONG C Q, YANG Y P, XIAO X B, LU Q, ZHAO Y. Effect of sodium oxides in ash composition on ash fusibility[J]. Energy Fuels, 2016,30(2):1437-1444.
18. [18]
  CHEN Xiao-dong, KONG Ling-xue, BAI Jin, BAI Zong-qing, LI Wen. Effect of Na₂O on mineral transformation of coal ash under high temperature gasification condition[J]. J Fuel Chem Technol, 2016,44(3):263-272. doi: 10.1016/S1872-5813(16)30015-9
19. [19]
  GAO Feng, MA Yong-jing. Study on the effect of Mg²⁺ and Na⁺ on the fusibility of coal ash with high ash fusion point[J]. J Fuel Chem Technol, 2012,40(10):1161-1166.
20. [20]
  SONG W J, TANG L H, ZHU X D, WU Y Q, ZHU Z B, KOYAMA S. Effect of coal ash composition on ash fusion temperatures[J]. Energy Fuels, 2009,24(1):182-189.
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