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RESEARCH PAPERS

Corrosion and Deposits from Combustion of Solid Waste—Part VI: Processed Refuse as a Supplementary Fuel in a Stoker-Fired Boiler

[+] Author and Article Information
H. H. Krause, D. A. Vaughan, P. W. Cover, W. K. Boyd

Columbus Laboratories, Battelle Memorial Institute, Columbus, OH

R. A. Olexsey

Industrial Environmental Research Laboratory, U.S. Environmental Protection Agency, Cincinnati, OH

J. Eng. Power 101(4), 592-597 (Oct 01, 1979) (6 pages) doi:10.1115/1.3446624 History: Received July 31, 1978; Online July 14, 2010

Abstract

The utilization of shredded and magnetically separated municipal refuse to supplement high-sulfur coal as fuel in a stoker-fired boiler was investigated, using the facilities of the Columbus, Ohio, Municipal Electric Plant. Corrosion probe exposures were used to show the effectiveness of cofiring with high-sulfur coal to reduce chloride corrosion of boiler tube metals by refuse. Reduced emissions of SO2 from the high-sulfur coal also resulted from dilution of the coal with refuse and by action of alkaline components of the refuse. It was demonstrated that 700 hr corrosion rates with refuse and high-sulfur coal were 5–10 times less than those with bulk refuse burning, and approximated those from coal alone. In some runs sulfur dioxide emissions were reduced by about ten percent more than the refuse dilution factor. The cofiring with refuse had no significant effect on grate ash composition, but the ash fusion temperature was lowered about 100°F.

Copyright © 1979 by ASME
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