SOx Reduction by Feedwater in an Industrial Boiler

Abstract:

This paper discusses the SOx reduction by feedwater in an industrial boiler. The combustion and fluid flow in the boiler is examined with emphasis on the effect of feedwater on SOx reduction. The simulation results indicate that feedwater injected into the DeSOx section has little influence on the heat absorption of the cooling pipes in the flue gas cooling section. The boiler exit temperature and the exit concentrations of SOx, NOx and CO are reduced by the feedwater. When the feedwater flowrate is increased to 1000 times the original value, the boiler exit temperature and the exit concentrations of SOx, NOx and CO are reduced to 1/2, 1/13, 1/13 and 1/20 of the original values.

• Periodical: Applied Mechanics and Materials (Volume 619)
• Pages: 135-141
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.619.135
• Online since: August 2014
• Authors: Chun Lang Yeh*
• Keywords: CO Boiler, Feedwater, Pollution, SOx Reduction

References

[1] D.S.N. Prasad, R. Sharma, S. Acharya, M. Saxena and A.K. Sharma: Rasāyan J. Chem. Vol. 3, No. 2 (2010), p.328.

[2] ANSYS FLUENT 12 Theory Guide: Chapter 13 Pollutant Formation (ANSYS, Inc., April 2009).

[3] S.V. Patankar: Numerical Heat Transfer and Fluid Flows (McGraw-Hill, New York 1980).

[4] B.E. Launder and D.B. Spalding: Lectures in Mathematical Models of Turbulence (Academic press, London England 1972).

[5] R. Siegel and J.R. Howell: Thermal Radiation Heat Transfer (Hemisphere publishing corporation, Washington DC 1992).

[6] B.F. Magnussen, in: 19th AIAA Meeting, St. Louis (1981).

[7] B.E. Launder and D.B. Spalding: Comput. Meth. Appl. Mech. Eng. Vol. 3, No. 2 (1974), p.269.

[8] C.L. Yeh: Int. J. Heat Mass Transfer Vol. 59 (April, 2013), p.172.

[9] J.C. Kramlich: The Fate and Behavior of Fuel-sulfur in Combustion Systems, PhD thesis, Washington State University, Washington, USA (1980).

[10] S.C. Hunter: T. ASME Vol. 104 (1982), p.44.