Journal
WASTE MANAGEMENT
Volume 130, Issue -, Pages 30-37Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2021.05.005
Keywords
High temperature corrosion; Sulfur recirculation; Waste to energy; Corrosion memory
Categories
Funding
- KME (Cooperation Programme Materials technology)
- Chalmers HTC (High Temperature Corrosion centre) - Swedish Energy Agency
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The choice of fuel for a CHP plant affects operational and maintenance costs; while the corrosiveness of different fuels has been extensively studied, research on corrosion memory effect is limited; this study found that adding sulfur to fuel can influence corrosion memory, where an initially corrosive environment may increase subsequent corrosion rate.
The selection of fuel for a Combined Heat and Power (CHP) plant can vary over time. By choosing less expensive fuels, operation costs are reduced, however, cheaper fuels generally increase corrosion maintenance costs. The corrosiveness of different fuels has been studied extensively while how the current corrosion attack is influenced by corrosion history, i.e. previous deposit build-up and oxide scale formation, is less studied. This phenomenon may be referred to as a corrosion memory effect (Paz et al., 2017). The present work investigates the influence of addition of sulfur to the fuel on the corrosion memory through air-cooled probes in the Waste-to Energy lines at Mabjerg Energy Center (MEC) in Denmark. The results show a corrosion memory effect, i.e. as initially corrosive environment may increase the subsequent corrosion rate and vice versa. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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