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[1] Wang Chunbo, Liu Hongcai, Chen Liang,. Model of limestone calcination/sulfationunder oxy-fuel fluidized bed combustion [J]. Journal of Southeast University (English Edition), 2015, 31 (2): 238-243. [doi:10.3969/j.issn.1003-7985.2015.02.014]
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Model of limestone calcination/sulfationunder oxy-fuel fluidized bed combustion()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
31
Issue:
2015 2
Page:
238-243
Research Field:
Energy and Power Engineering
Publishing date:
2015-06-20

Info

Title:
Model of limestone calcination/sulfationunder oxy-fuel fluidized bed combustion
Author(s):
Wang Chunbo;  Liu Hongcai;  Chen Liang
School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
Keywords:
oxy-fuel;  limestone;  simultaneous calcination/sulfation;  grain-micrograin model
PACS:
TK16
DOI:
10.3969/j.issn.1003-7985.2015.02.014
Abstract:
The characteristics of the simultaneous calcination/sulfation of limestone under oxy-fuel fluidized bed combustion were studied and compared with those of the sulfation of precalcined CaO. During the calcination stage, SO2 can react with product CaO and slow down the CaCO3 decomposition rate by the covering effect of the CaSO4 product. The sulfation rate of simultaneous calcination/sulfation is slower than that of precalcined CaO, but with a long enough sulfation time, the calcium conversion of simultaneous calcination/sulfation is higher than that of the precalcined CaO. A grain-micrograin model is established to describe the simultaneous calcination, sintering and sulfation of limestone. The grain-micrograin model can reflect the true reaction process of the calcination and sulfation of limestone in oxy-fuel fluidized bed combustion.

References:

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Memo

Memo:
Biography: Wang Chunbo(1973—), male, doctor, professor, hdwchb@126.com.
Foundation items: The National Natural Science Foundation of China(No.51276064), the Natural Science Foundation of Hebei Province(No.E2013502292).
Citation: Wang Chunbo, Liu Hongcai, Chen Liang. Model of limestone calcination/sulfation under oxy-fuel fluidized bed combustion[J].Journal of Southeast University(English Edition), 2015, 31(2):238-243.[doi:10.3969/j.issn.1003-7985.2015.02.014]
Last Update: 2015-06-20