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[1] Zhao Changsui, Wang Wenxuan, Wang Fengjun, Chen Chuanmin, et al. SO2 emission characteristics from co-firingof petroleum coke and coal in circulating fluidized bed [J]. Journal of Southeast University (English Edition), 2005, 21 (1): 48-52. [doi:10.3969/j.issn.1003-7985.2005.01.011]
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SO2 emission characteristics from co-firingof petroleum coke and coal in circulating fluidized bed()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
21
Issue:
2005 1
Page:
48-52
Research Field:
Environmental Science and Engineering
Publishing date:
2005-03-30

Info

Title:
SO2 emission characteristics from co-firingof petroleum coke and coal in circulating fluidized bed
Author(s):
Zhao Changsui Wang Wenxuan Wang Fengjun Chen Chuanmin Han Song
Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, Nanjing 210096, China
Keywords:
circulating fluidized bed petroleum coke coal co-firing desulfurization
PACS:
X511
DOI:
10.3969/j.issn.1003-7985.2005.01.011
Abstract:
Combustion and sulfur retention experiments of mixed fuel of petroleum coke and coal were conducted on a pilot-scale circulating fluidized bed(CFB)combustor with the thermal input of 0.6 MW.The effects of several parameters, such as the primary air percentage, excess air coefficient, bed temperature, Ca/S molar ratio and mass ratio of petroleum coke to coal on SO2 emission were verified.Experimental results show that when the ratio of petroleum coke to coal in the mixed fuel increases, the SO2 emission increases.The maximum SO2 emission appears when pure coke burns.The SO2 concentration in flue gas reduces with the increase in the primary air percentage, excess air coefficient and Ca/S molar ratio for all kinds of fuel mixtures.The range between 830 ℃ and 850 ℃ is the optimal temperature for sulfur retention during co-firing of petroleum coke and coal with the mass ratio R of 1 and 3 in CFB.

References:

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[3] Anthony E J, Jia L.Agglomeration and strength development of deposits in CFB boilers firing high-sulfur fuels [J].Fuel, 2000, 79(15):1933-1942.
[4] Wang W A.Research on combustion of petroleum coke blending with coal in circulating fluidized bed [D].Nanjing:Department of Power Engineering of Southeast University, 2002.(in Chinese)
[5] Brereton C M H, Lim C J, Grace J R, et al.Pitch and coke combustion in a circulating fluidized bed [J].Fuel, 1995, 74(10):1415-1423.
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Memo

Memo:
Biography: Zhao Changsui(1945—), male, professor, cszhao@seu.edu.cn.
Last Update: 2005-03-20