| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Lehmusto, Juho
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024A novel methodology for monitoring low-temperature corrosion caused by hygroscopic salts using linear polarization resistancecitations
- 2024Analytical and applied pyrolysis of challenging biomass feedstockscitations
- 2024Analytical and applied pyrolysis of challenging biomass feedstocks:Effect of pyrolysis conditions on product yield and compositioncitations
- 2023The effect of Cl, Br, and F on high-temperature corrosion of heat-transfer alloyscitations
- 2022Comprehensive insights into competitive oxidation/sulfidation reactions on binary ferritic alloys at high temperaturescitations
- 2022Amino Acids Reduce Mild Steel Corrosion in Used Cooking Oilscitations
- 2022Metal Rod Surfaces after Exposure to Used Cooking Oilscitations
- 2021Should the oxygen source be considered in the initiation of KCl-induced high-temperature corrosion?citations
- 2021Effect of annealing and supercritical CO 2 exposure at 750 °C on the tensile properties of stainless steel and Ni-based structural alloyscitations
- 2021Superheater deposits and corrosion in temperature gradient – Laboratory studies into effects of flue gas composition, initial deposit structure, and exposure timecitations
- 2017The effect of temperature on the formation of oxide scales regarding commercial superheater steelscitations
- 2015The Effect of Pretreatment on the Corrosion Resistance of Superheater Materialscitations
- 2015Comparison of High-Temperature Oxidation Onset Behavior of Sanicro 28 Steel with KCl, NaCl and K<sub>2</sub>CO<sub>3</sub>
- 2011Detailed Studies on the High Temperature Corrosion Reactions between Potassium Chloride and Metallic Chromiumcitations
Places of action
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article
Superheater deposits and corrosion in temperature gradient – Laboratory studies into effects of flue gas composition, initial deposit structure, and exposure time
Abstract
The heterogeneous nature of the ash chemistry of biomass fuels gives rise to challenges in predicting the deposit melting, sintering, and enrichment of corrosive ash species. An experimental method has been developed to study the evolution of ash deposit chemistry and morphology in temperature gradients simulating the conditions of real superheater deposits. The method is based on applying synthetic ash mixtures on an air-cooled corrosion probe, which is inserted into a tube furnace. The focus has been on how the melting behavior of alkali salt-rich deposits, i.e., KCl–K 2 SO 4 –NaCl–Na 2 SO 4 mixtures, affects the chemistry and morphology. Intradeposit vaporization-condensation of alkali chlorides has been of interest. The interaction of reactive gas components (H 2 O + SO 2 ), with the deposits, was also studied. The vaporization-condensation mechanism leads to enrichment of alkali chlorides in crevices and voids within deposits, leading also to build-up of chlorides on the steel surface, which causes accelerated corrosion, due to the formation of low-melting FeCl 2 mixtures. Liquid phase sintering and temperature gradient zone melting (TGZM) were the main mechanisms for the supersolidus sintering of the deposits. Iron and nickel oxides were found within the deposits and at the outer edge of deposits, due to the TGZM mechanism.