Fusibility Characteristics of Slag from Fluidized-Bed Gasification of Jincheng Anthracite

Abstract:

To investigate fusibility characteristics of slag from Jincheng Anthracite (JC) pressurized ash agglomerate fluidized bed (AFB) gasification of Jincheng Anthracite (JC), the slag samples were examined by an ash fusion temperature (AFT) analyzer, scanning electron microscope (SEM), and X-ray diffraction (XRD). The results show that the AFTs of three kinds of slag are lower than that of JC greatly, and the AFTs of three kinds of slag decrease from the slag formed that on the central tube (S_C) to distribution plate (S_D) to inner face (S_I), as a result of the increase of total base content and the differences in their mineral compositions accordingly. Not all slag during AFB gasification are composed of molten mineral matters. This can be explained that the phenomena that the slag formation during fluidized-bed gasification when the operating temperature is below the AFTs of coal.

• Periodical: Advanced Materials Research (Volumes 805-806)
• Pages: 1317-1320
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.805-806.1317
• Online since: September 2013
• Authors: Feng Hai Li*, Zhen Zhu Li, Ming Jie Ma, Jie Jie Huang, Yi Tian Fang
• Keywords: Fusibility Characteristics, Jincheng Anthracite, Three Kinds of Slag

References

[1] F. H. Li, J. J. Huang, Y. T. Fang and Y. Wang: Energy Fuels Vol. 25(2010), P. 273.

[2] C. F. You and Y. Zhou: Energy Fuels, Vol. 20(2006), P. 1855.

[3] J. C. Van Dyk, S. A. Benson, M. L. Laumb and B. Waaders: Fuel, Vol. 88(2009), P. 1057.

[4] G. V. Christina and V. V. Stanislav: Fuel Process. Technol. Vol. 86 (2005), P. 1297.

[5] W. J. Song, L. H. Tang, X. D. Zhu, Y. Q. Wu, Y. Q. Rong, Z. B. Zhu and S. Koyama: Fuel 88(2009), P. 297.

[6] H.J. Park, N. H. Jung and J. M. Lee: Korean J. Chem. Eng., 28 (2011), P. 1791.

[7] J. K. Yang, B. Xiao and A. R. Boccaccini: Fuel 88(2009), P. 1275.

[8] F. H. Li, J. J. Huang, Y. T. Fang and Y. Wang: Fuel, Vol. 70 (2011), P. 2377.