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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
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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

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References

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