Abstract
The co-combustion characteristics for Korean anthracites and bituminous coals were determined in a lab-scale CFB reactor and the commercial scale Tonghae CFB Power Plant. In the lab-scale CFB combustion tests, the effluent rate of the emission gases, which can indicate the reactivity of the combustion, did not change appreciably when each coal burned. As the bituminous coal was added, however, the effluent rate of the emissions increased. The amount of the unburned carbon in ash decreased with increasing the ratio of the bituminous coal during the co-combustion. When the co-combustion was tested in the Tonghae CFB power plant, the temperatures at the upper part of the combustor and the cyclones, which were somewhat higher than designed and expected, could be reduced as the bituminous coal ratio increased. Consequently, more stable operation of the CFB boiler was achieved. The efficiency of the CFB boiler also increased due to increasing the reactivity of the combustion.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
H. Kobro and C. Brereton, CFB technology, Pergamon Press, New York, 263 (1986).
S. H. Lee, J. M. Lee, J. S. Kim, J. H. Choi and S. D. Kim, Hwahak Konghak, 38, 516 (2000).
J. M. Lee, J. S. Kim and J. J. Kim, Energy-The Int. J., 28, 111 (2003).
J. M. Lee, J. S. Kim and J. J. Kim, in 16th ASME FBC conference, W. Donald and P. E. Gelling Eds., USA, 889 (2001).
L. Lafanechere, P. Basu and L. Jestin, Journal of Institute of Energy, 68, 184 (1995).
S. W. Cho, K. J. Oh, H. T. Jang, B. S. Tae and B. S. Doh, Journal of Korean Society of Environmental Engineers, 18(3), 267 (1996).
B. Leckner and A. Lyngfelt, Int. J. Energy Res., 26, 1191 (2002).
B. Leckner, L. E. mand and J. Werther, Fuel, 83, 447 (2004).
J. M. Lee, J. S. Kim and J. J. Kim, Fuel, 82, 1349 (2003).
S. H. Lee, S. M. Jeong, J. M. Lee, Y. J. Kim, J. H. Bang and S. D. Kim, Hwahak Konghak, 38, 706 (2000).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kim, D.W., Lee, J.M., Kim, J.S. et al. Co-combustion of Korean anthracite with bituminous coal in two circulating fluidized bed combustors. Korean J. Chem. Eng. 24, 461–465 (2007). https://doi.org/10.1007/s11814-007-0080-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-007-0080-0