Abstract
Measurements in the freeboard of a pilot scale fluidized bed coal combustor showed a substantial reduction in the levels of NOx with increasing elevation above the bed. This reduction could be well described by a model which takes into account the reaction between NOx and the carbonaceous particles entrained from the bed. The model was used to evaluate the impact of changing bed solid and coal feed size on both NOx reduction and carbon combustion efficiency in order to guide the selection of conditions which can maximize the reduction of NOx without incurring a significant penalty in combustion efficiency.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Gibbs, B. M., F. J. Pereira, and J. M. Beer, "Coal Combustion NO Formation in an Experimental Fluidized Bed," Inst. F. Symposium Series No. 1, Fluidized Combustion Paper D.6, ppl-13.
Sandhu, S. S., and J. M. Beer, "The 2’ x 2’ M.I.T. Fluidized Combustion Facility," M.I.T. Energy Lab. Report, March (1979).
Beer, J. M., A. F. Sarofim, L. K. Chan, and A. M. Sprouse, "NO Reduction by Char in Fluidized Combustion."The Proceedings of the 5th International Conference on Fluidized Bed Combustion, The MITRE Corporation, McLean, VA, U.S.A., Vol. II, pp 577–593 (1978).
Betr, J. M., A. F. Sarofim, L. K. Chan, A. M. Sprouse, D. M. Bachovchin, F. Soubra, and T. Z. Chaung, Nitrogen Oxides Emission from Fluidized Coal Combustion, Final Report (EPA Grant No. 804978), in preparation.
Lewis, W. K., E. R. Gilliland, and P. M. Long, Chem. Eng. Symp. Series, No. 38, Vol. 58, pp65–78 (1962).
Amitin, A. V., I. G. Martyushin, and D. A. Gurevich, Chemistry and Tech. of Fuels and Oils, 3–4, 181 (1968).
George, S. E., and J. R. Grace, AIChE Symp. Series, No. 176, Vol. 74, pp 67–74 (1978).
Bachovchin, D. M., J. M. Beér, and A. F. Sarofim, Paper No. 43-a, AIChE 72nd Annual Meeting, San Francisco (Nov. 1979).
Chen, T. P., and S. C. Saxena, in “Fluidization, ” Cambridge University Press (1978), pp 151–156.
Merrick, D., and J. Highley, AIChE Symp. Series, Vol. 70, No. 137 (1974), p336.
Beér, J. M., R. E. Baron, G. Borghi, J. L. Hodges, and A. F. Sarofim, A Model of Coal Combustion in Fluidized Bed Combustors, Proceedings of Fifth International Conference on Fluidized Combustion, Washington, D. C., Vol. II, MITRE Corp., (1978).
Darton, R. C., R. D. LaNauze, J. F. Davidson, and D. Harrison, Bubble Growth due to Coalescence in Fluidized Beds, Trans. I. Chem. E., Vol. 55, 1977, p274.
Field, M. A., et al. Combustion of Pulverized Coal, BCURA, Leatherhead, England (1967).
Howard, J. B., G. C. Williams, and D. H. Fine, Fourteenth Symp. (International) on Combustion, Pittsburgh, PA., (1973), p975.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1980 Plenum Press, New York
About this chapter
Cite this chapter
Beér, J.M., Sarofim, A.F., Sharma, P.K., Chaung, T.Z., Sandhu, S.S. (1980). Fluidized Coal Combustion: The Effect of Sorbent and Coal Feed Particle Size Upon the Combustion Efficiency and NOx Emission. In: Grace, J.R., Matsen, J.M. (eds) Fluidization. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1045-7_15
Download citation
DOI: https://doi.org/10.1007/978-1-4684-1045-7_15
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4684-1047-1
Online ISBN: 978-1-4684-1045-7
eBook Packages: Springer Book Archive