Citation: MA Ya-shi, HU Xiao-fei, LIU Xia, GUO Qing-hua, YU Guang-suo. Study on ash fusion and viscosity temperature characteristics modification of Shanxi typical high aluminum coal[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(11): 1303-1309. shu

Study on ash fusion and viscosity temperature characteristics modification of Shanxi typical high aluminum coal

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

Corresponding author: LIU Xia, gsyu@ecust.edu.cn YU Guang-suo, lxia@ecust.edu.cn
Received Date: 28 July 2017
Revised Date: 29 August 2017

Fund Project: the National Natural Science Foundation of China 21676091The project was supported by the National Natural Science Foundation of China (21676091)

Figures(8)

In this work, the influences of two industrial fluxes (i.e. limestone and clay) and their composite flux on ash fusion and viscosity temperature characteristics of Shanxi typical high-alumina coals were explored, respectively. The results indicated that flow temperature of coal ash decreased with increasing additive amount of flux. Moreover, limestone exhibited a better flux effect than clay, among which the flux effect of composite flux was more obvious than that of the single fluxes. It was also found that limestone could significantly reduce the t_cv of coal ash slag and clay could promote the slag type transformation towards glassy slag. Compared with single fluxes, composite flux exhibited synergistic effect on both the significant reduction of t_cv and the promotion of slag type transformation. For Shanxi typical high-alumina Liangdu coal, when total amount of composite flux was 4% (2% limestone+2% clay), not only the slag transformed into glassy slag, but also t_cv of the slag decreased 133 and 222 ℃ compared with single flux limestone(2%) and clay (6%), respectively. Minerals analysis results confirmed the fluxing principle of different fluxes. After the addition of composite flux, Shanxi high-alumina coals could meet the requirements of industrial entrained-flow gasifier.
- high-aluminum coal,
- composite flux,
- ash fusion characteristics,
- viscosity temperature characteristics
1. [1]
  SAFRONOV D, FÖRSTER T, SCHWITALLA D, NIKRITYUK P, GUHL S, RICHTER A, MEYER B. Numerical study on entrained-flow gasification performance using combined slag model and experimental characterization of slag properties[J]. Fuel Process Technol, 2017,161:62-75. doi: 10.1016/j.fuproc.2017.03.007
2. [2]
  YU Guang-suo, NIU Miao-ren, WANG Yi-fei, LIANG Qin-feng, YU Zun-hong. Application status and development tendency of coal entrained-bed gasification[J]. Mod Chem Ind, 2004,24(5):23-26.
3. [3]
  BAI Jin, KONG Ling-xue, LI Huai-zhu, GUO Zhen-xing, BAI Zong-qing, WEI Chi-wei, LI Wen. Adjustment in high temperature flow property of ash from Shanxi typical anthracite[J]. J Fuel Chem Technol, 2013,41(7):805-813.
4. [4]
  NINOMIYA Y, SATO A. Ash melting behavior under coal gasification conditions[J]. Energy Convers Manage, 1997,38(10):1405-1412.
5. [5]
  KONDRATIEV A, JAK E. Predicting coal ash slag flow characteristics (viscosity model for the Al₂O₃-CaO-'FeO'-SiO₂ system)[J]. Fuel, 2001,80(14):1989-2000. doi: 10.1016/S0016-2361(01)00083-7
6. [6]
  JING N J, WANG Q H, YANG Y K, CHENG L M, LUO Z Y, CEN K F. Influence of ash composition on the sintering behavior during pressurized combustion and gasification process[J]. J Zhejiang Univ-Sci A, 2012,13(3):230-238. doi: 10.1631/jzus.A1100206
7. [7]
  HURST H J, NOVAK F, PATTERSON J H. Phase diagram approach to the fluxing effect of additions of CaCO₃ on Australian coal ashes[J]. Energy Fuels, 1996,10(6):1215-1219. doi: 10.1021/ef950264k
8. [8]
  YAO Xing-yi. Relationship of coal ash fusibility to chemical composition[J]. J Fuel Chem Technol, 1965,6(2):151-161.
9. [9]
  DAI Ting-kui. Study on improving ash fusibility and fluxing mechanism of high alumina coal[D]. Huainan:Anhui Univ Sci Technol, 2016.
10. [10]
  XIAO H X, LI F H, LIU Q R, JI S H, FAN S H, FAN H L, XU M L, GUO Q Q, MA M J, MA X W. Modification of ash fusion behavior of coal with high ash fusion temperature by red mud addition[J]. Fuel, 2017,192:121-127. doi: 10.1016/j.fuel.2016.12.012
11. [11]
  LI Wen, BAI Jin. Chemistry of Ash from Coal[M]. Beijing:Science Press, 2013.
12. [12]
  HUANG Qian-jun. The product of base/acid and silica/alumina of ash in steal coal-An index to ash slagging tendency[J]. Power Eng, 2004,24(3):340-344.
13. [13]
  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.
14. [14]
  XU Jie, LIU Xia, ZHANG Qing, ZHAO Feng, GUO Qing-hua, WANG Fu-chen. Research on ash fusibility and viscosity-temperature characteristic of high-calcium Shanxin coal ash[J]. Proc CSEE, 2013, 33(20):46-51.
15. [15]
  LIU X, YU G, XU J, LIANG Q, LIU H. Viscosity fluctuation behaviors of coal ash slags with high content of calcium and low content of silicon[J]. Fuel Process Technol, 2017,158:115-122. doi: 10.1016/j.fuproc.2016.12.013
16. [16]
  LIU Xia, LIANG Qin-feng, LIU Hai-feng, YU Guang-suo, GONG Xin. Measurement condition of coal ash viscosity-temperature characteristics[J]. J East China Univ Sci Technol:Nat Sci Ed, 2015,1004.
17. [17]
  DING Jia-hai. Coal adaptability experience in SE pulverized coal gasification[J]. Large Scale Nitrogenous Fertilizer Ind, 2016,39(6):361-365.
18. [18]
  TSURUDA A, ARMA L H, TAKEBE H. Viscosity measurement and prediction of gasified and synthesized coal slag melts[J]. Fuel, 2017,200:521-528. doi: 10.1016/j.fuel.2017.03.094
19. [19]
  ILYUSHECHKIN A Y, HLA S S. Viscosity of high-iron slags from Australian coals[J]. Energy Fuels, 2013,27(7):3736-3742. doi: 10.1021/ef400593k
20. [20]
  WU G, YAZHENSKIKH E, HACK K, WOSCH E, MVLLER M. Viscosity model for oxide melts relevant to fuel slags. Part 1:Pure oxides and binary systems in the system SiO₂-Al₂O₃-CaO-MgO-Na₂O-K₂O[J]. Fuel Process Technol, 2015,137:93-103. doi: 10.1016/j.fuproc.2015.03.025
21. [21]
  DAI Bai-qian, WU Xiao-jiang, CHEN Yu-shuang, ZHANG Zhong-xiao. Experimental study and quantum chemistry calculation on coal ash fusion behavior and related mineral evolution mechanism[J]. J Chin Soc Power Eng, 2014,34(1):70-76.
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