| 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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Wu, Hao
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2023Investigating the Interaction between Ilmenite and Zinc for Chemical Loopingcitations
- 2023Full-scale investigations of initial deposits formation in a cement plant co-fired with coal and SRFcitations
- 2022Powder Reuse in Laser-Based Powder Bed Fusion of Ti6Al4V—Changes in Mechanical Properties during a Powder Top-Up Regimecitations
- 2022On the application of Vickers micro hardness testing to isotactic polypropylenecitations
- 2022Thermal Conversion of Sodium Phytate Using the Oxygen Carrier Ilmenite Interaction with Na-Phosphate and Its Effect on Reactivitycitations
- 2021Analysis of spatter removal by sieving during a powder-bed fusion manufacturing campaign in grade 23 titanium alloycitations
- 2021Electrospinning for developing flame retardant polymer materials: current status and future perspectivescitations
- 2021Thread-stripping test procedures leading to factors of safety data for friction-drilled holes in thin-section aluminium alloycitations
- 2020Reuse of grade 23 Ti6Al4V powder during the laser-based powder bed fusion processcitations
- 2017Deposit Shedding in Biomass-Fired Boilers: Shear Adhesion Strength Measurementscitations
- 2017Deposit Shedding in Biomass-Fired Boilers: Shear Adhesion Strength Measurementscitations
- 2016Adhesion Strength of Biomass Ash Deposits
- 2016Adhesion Strength of Biomass Ash Deposits
- 2016Deposit Shedding in Biomass-fired Boilers: Shear Adhesion Strength Measurements
- 2016Deposit Shedding in Biomass-fired Boilers: Shear Adhesion Strength Measurements
- 2013Deposit formation in a full-scale pulverized wood-fired power plant with and without coal fly ash addition
- 2013Modeling of sulfation of potassium chloride by ferric sulfate addition during grate-firing of biomass
- 2012Deposit Probe Measurements in Danish Grate and Pulverized Fuel Biomass Power Boilers
- 2012Deposit Probe Measurements in Danish Grate and Pulverized Fuel Biomass Power Boilers
- 2012Combustion Aerosols from Full-Scale Suspension-Firing of Wood Pellets
- 2010On the prediction of the residual fatigue life of cracked structures repaired by the stop-hole methodcitations
Places of action
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document
Modeling of sulfation of potassium chloride by ferric sulfate addition during grate-firing of biomass
Abstract
Potassium chloride, KCl, formed from critical ash-forming elements released during combustion may lead to severe ash deposition and corrosion problems in biomass-fired boilers. Ferric sulfate, Fe2(SO4)3 is an effective additive, which produces sulfur oxides (SO2 and SO3) to convert KCl to the less harmful K2SO4. In the present study the decomposition of ferric sulfate is studied in a fast-heating rate thermogravimetric analyzer (TGA), and a kinetic model is proposed to describe the decomposition process. The yields of SO2 and SO3 from ferric sulfate decomposition are investigated in a laboratory-scale tube reactor. It is revealed that approximately 40% of the sulfur is released as SO3, the remaining fraction being released as SO2. The proposed decomposition model of ferric sulfate is combined with a detailed gas phase kinetic model of KCl sulfation, and a simplified model of K2SO4 condensation in order to simulate the sulfation of KCl by ferric sulfate addition during grate-firing of biomass. The simulation results show good agreements with the experimental data obtained in a<br/>pilot-scale biomass grate-firing reactor, where different amounts of ferric sulfate was injected on the grate or into the freeboard. In addition, the simulations of elemental sulfur addition on the grate fit well with the experimental data. The results suggest that the SO3 released from ferric sulfate decomposition is the main contributor to KCl sulfation, and that the effectiveness of the ferric sulfate addition is sensitive to actual temperature in the system. When the ferric sulfate is injected on the grate, the majority of the released SO3 is rapidly converted to SO2 due to the high temperatures, resulting in a low effectiveness similar to that of elementary sulfur addition on the grate. On the other hand, when the ferric sulfate is injected into the freeboard where the temperatures<br/>are below 1050oC, the majority of the released SO3 contributes to the formation of K2SO4, leading to a high effectiveness in KCl destruction. Overall, the model developed in this work facilitates an optimal use of ferric sulfate in biomass combustion.