Corrosion of Superheaters and Reheaters of Pulverized-Coal-Fired Boilers, II
- 1 October 1961
- journal article
- Published by ASME International in Journal of Engineering for Power
- Vol. 83 (4) , 468-474
- https://doi.org/10.1115/1.3673237
Abstract
This paper deals with studies of high-temperature fireside corrosion of reheater and superheater tubes in pulverized-coal-fired boilers. Factors affecting the temperature range and rate of corrosion by molten complex alkali sulfates are described. The influence of sulfides, produced by reaction of complex sulfates with tube metal, on corrosion rate is discussed. The similarity of coal-ash to oil-ash corrosion mechanism is brought out. Methods for distinguishing liquid phase from gas-phase corrosion on ferritic alloys are presented.Keywords
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