Hostname: page-component-7bb8b95d7b-w7rtg Total loading time: 0 Render date: 2024-09-23T19:15:31.979Z Has data issue: false hasContentIssue false
  • English
  • Français

Surface Characterization of the Mechanism for Decreased Boiler Slagging via Fly Ash Surface Modification

Published online by Cambridge University Press:  25 February 2011

Christopher J. Macey
Christopher J. Macey*
Affiliation:
Physical Electronics Division, Perkin-Elmer Corporation, 2 Taunton Street, Plainville, MA 02762
Get access

Abstract

Slagging difficulties encountered in large, pulverized coal-fired utility boilers can be alleviated by using recently developed chemical conditioners designed to inhibit the agglomeration of molten fly ash particles. Slagging results from the impaction and accretion on the boiler interior surfaces of molten ash particles in the flue gas resulting from the combustion of coal. Electron Spectroscopy for chemical Analysis (ESCA) and ion sputtering depth profiling were utilized to examine the mechanism whereby a fuel conditioner containing copper oxychloride effectively reduced slag deposition rates during a pilot-scale, pulverized coal combustion experiment.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 65: Symposium T – Fly Ash and Coal Conversion By-Products II , 1985 , 151
Copyright
Copyright © Materials Research Society 1986

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Kober, A.E. and Macey, C.J., U.S. Patent No. 4,498,402, February, 1985.Google Scholar
2. Kiss, L.T., Lloyd, B., and Raask, E., J. Inst. Fuel, 44, 213 (1972).Google Scholar
3. Kiss, L.T. and Lloyd, B., J. Inst. Fuel, 48, 27 (1975).Google Scholar
4. Locklin, D.W., Krause, H.H., Anson, D., and Reid, W., Electric Utility Use of Fireside Additives, CS-1318, Research Project 1035–1, Final Report to the Electric Power Research Institute, Jan. 1980.Google Scholar
5. Cabaniss, G.E. and Linton, R.W., Environ. Sci. Technol. 18, 271 (1984).Google Scholar
6. Kaufherr, N., Shenasa, M. and Lichtman, D., Environ. Sci. Technol., 19, 609 (1985).Google Scholar
7. James, W.C. and Fisher, A.G., J. Inst. Fuel, 40, 170 (1967).Google Scholar
8. Wagner, C.D. et al., Handbook of X-ray Photoelectron Spectroscopy, Perkin-Elmer Corp. Physical Electronics Div., Eden Prairie, Minnesota, 1979.Google Scholar
9. Analysis provided by Dr. Sojka, S.A., Occidental Chemical Corp., Grand Island, New York. Google Scholar
10. Macey, C.J. and Salvati, L. (to be published).Google Scholar