Modelling particulate erosion–corrosion in aqueous slurries: some views on the construction of erosion–corrosion maps for a range of pure metals

Stack, Margaret; Jana, B.D.

doi:10.1016/j.wear.2003.09.004

Cited by 60 publications

(36 citation statements)

References 18 publications

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“…More information on biomass pre-treatment through washing (both biomass washing and char washing) and its benefits for co-firing systems was provided by Maciejewska et al (2006). Biomass-related deposit formation and corrosion are linked (EUBION, 2003); erosion and corrosion also interact (Stack and Jana, 2004). Therefore it is difficult to address these issues separately.…”

Section: Ash Slagging Fouling and Corrosion Problemsmentioning

confidence: 99%

Overview and some issues related to co‐firing biomass and coal

et al. 2008

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Low heating values, variable chemical compositions, peculiar physical properties, high investment cost and insecurity of biomass feedstocks supply limit the applications of biomass for energy and other processes. Co-firing biomass and coal has potential for the development of biomass-to-energy capacity with significant economic, environmental, and social benefits. However, co-firing is not straightforward, and some questions need to be addressed due to the differences in chemical compositions and physical properties of biomass and coal. This paper highlights key issues related to co-firing, including reactor types, feeding, hydrodynamics, ash sintering, fouling, and corrosion, based on previous studies, as well as calculations and analysis. Direct co-firing is the most common option for biomass and coal co-firing currently, mostly due to relatively low investment needed to turn existing coal power plants into co-firing plants. For direct co-firing, the physical characteristics and chemical compositions of the fuel entering the combustors or gasifiers are critical to an optimum operation. Any biomass mixed with coal needs to have acceptable physical properties. More research is needed on co-firing biomass and coal, including work on: preparation, handling, storage, and feeding of biomass feedstocks (e.g. drying, torrefaction, pelletization); co-firing mechanisms; hydrodynamic analysis of co-firing combustors and gasifiers; boiler/gasifier capacity, slagging, fouling, corrosion, efficiency, reliability, fuel flexibility; lower emissions and gas cleaning; catalyst poisoning; investment and operating costs.Les applications de la biomasse pour les procédésénergétiques et d'autres procédés sont limités par les faibles pouvoirs calorifiques, des compositions chimiques variables, des propriétés physiques particulières, des coûts d'investissementélevés et l'insécurité quantà l'approvisionnement en biomasse comme matière première. La co-alimentation biomasse-charbon est potentiellement intéressante pour la transformation de la biomasse enénergie, avec des avantageséconomiques, environnementaux et sociaux significatifs. Toutefois, la co-alimentation n'est pas simple et certaines questions se posent du fait des différences dans les compositions chimiques et les propriétés physiques de la biomasse et du charbon. On souligne dans cet article les principaux aspects entrant dans la co-alimentation, notamment le type de réacteurs, l'alimentation, l'hydrodynamique, le frittage des cendres, l'encrassement et la corrosion, d'après desétudes antérieures ainsi que des calculs et analyses. La co-alimentation directe est l'option la plus commune pour la co-alimentation biomasse-charbon, principalement en raison de l'investissement relativement faible requis pour transformer les centralesélectriques alimentées au charbon actuelles en centrales hybrides. Pour la co-alimentation directe, les caractéristiques physiques et les compositions chimiques du fioul entrant dans les chambres de combustion et les gazéifieurs sont critiques pour un fo...

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Section: Ash Slagging Fouling and Corrosion Problemsmentioning

confidence: 99%

Overview and some issues related to co‐firing biomass and coal

et al. 2008

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“…Reports have also been made where the synergy results seemed to be dependent more on techniques and test conditions adopted during the tests as well as the impact of corrosive solution, the material property, and also the type of materials itself. For most alloys and metal samples the most significant impact was found at a mild corrosive environment [25], [26], [34], [40]- [44].…”

Section: Introductionmentioning

confidence: 99%

Different methods of measuring synergy between cavitation erosion and corrosion for nickel aluminium bronze in 3.5% NaCl solution

Basumatary

Wood

2020

Tribology International

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“…This synergy effect was found to be due to several factors such as impact of corrosive solution, the material property and also the type of materials itself. The most significant impact was found at a mild corrosive environment [4,[20][21][22].…”

Section: Introductionmentioning

confidence: 99%

The Synergistic Effects of Cavitation Erosion–Corrosion in Ship Propeller Materials

2015

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Synergy tests were performed for two most common propeller materials, duplex stainless steel (DSS) and nickel aluminium bronze (NAB), by means of an indirect ultrasonic vibratory system. Tests were conducted for pure cavitation erosion in distilled water, pure corrosion using in situ electrochemistry under 3.5 % NaCl solution and a combination of cavitation erosion-corrosion to understand the overall synergism existing between the two. The results were analysed using gravimetric as well as volumetric analysis. Alicona and Talysurf were employed for the surface topography, and scanning electron microscope was used to see the microstructural morphologies of the samples under different conditions. As a result, the electrochemical tests held at open circuit potential showed that, although DSS exhibited higher resistance to corrosion under seawater alone, NAB exhibited much higher resistance to corrosion when subjected to cavitation. From the experiments conducted, it was concluded that synergy had measurable impact on the cavitation erosion-corrosion of both NAB and DSS. NAB was found to be more susceptible to erosion under both the conditions as compared to DSS with prominent selective cavitation erosion of alpha phase in the microstructure. The overall synergism of NAB was found to be higher than that of DSS.

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Modelling particulate erosion–corrosion in aqueous slurries: some views on the construction of erosion–corrosion maps for a range of pure metals

Cited by 60 publications

References 18 publications

Overview and some issues related to co‐firing biomass and coal

Overview and some issues related to co‐firing biomass and coal

Different methods of measuring synergy between cavitation erosion and corrosion for nickel aluminium bronze in 3.5% NaCl solution

The Synergistic Effects of Cavitation Erosion–Corrosion in Ship Propeller Materials

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