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Journal article

Assessment of corrosion in the flue gas cleaning system using on-line monitoring

In Vgb Powertech 2015, Volume 10, pp. 77-83
From

Department of Mechanical Engineering, Technical University of Denmark1

Materials and Surface Engineering, Department of Mechanical Engineering, Technical University of Denmark2

MetriCorr ApS3

Amager unit 1 is a 350 MW multifuel suspension-fired plant commissioned in 2009 to fire biomass (straw and wood pellets). Increasing corrosion problems in the flue gas cleaning system were observed in the gas-gas preheater (GAFO), the booster fan and flue gas ducts. Chlorine containing corrosion products/deposits were detected.

An on-line corrosion measurement system was established to determine corrosion mechanisms. It was revealed that many shutdowns/start-ups of the plant influence corrosion and result in decreased lifetime of components and increased maintenance. The change of fuel from woodchip + straw pellets to only woodchip pellets reduced corrosion significantly.

Language: English
Year: 2015
Pages: 77-83
ISSN: 14353199
Types: Journal article
ORCIDs: Montgomery, Melanie

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