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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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Glarborg, Peter
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2023Investigating the Interaction between Ilmenite and Zinc for Chemical Loopingcitations
- 2023Investigating the Interaction between Ilmenite and Zinc for Chemical Loopingcitations
- 2022Thermal Conversion of Sodium Phytate Using the Oxygen Carrier Ilmenite Interaction with Na-Phosphate and Its Effect on Reactivitycitations
- 2020Experimental Investigation and Mathematical Modeling of the Reaction between SO2(g) and CaCO3(s)-containing Micelles in Lube Oil for Large Two-Stroke Marine Diesel Enginescitations
- 2019Mixed Flow Reactor Experiments and Modeling of Sulfuric Acid Neutralization in Lube Oil for Large Two-Stroke Diesel Enginescitations
- 2019Mixed Flow Reactor Experiments and Modeling of Sulfuric Acid Neutralization in Lube Oil for Large Two-Stroke Diesel Enginescitations
- 2019Kinetic Parameters for Biomass under Self-Ignition Conditions: Low-Temperature Oxidation and Pyrolysiscitations
- 2018Characterization of free radicals by electron spin resonance spectroscopy in biochars from pyrolysis at high heating rates and at high temperaturescitations
- 2018Reaction kinetics for biomass self-ignition at 150–230°C
- 2017Reaction of Sulfuric Acid in Lube Oil: Implications for Large Two-Stroke Diesel Enginescitations
- 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
- 2016Characterization of free radicals by electron spin resonance spectroscopy in biochars from pyrolysis at high heating rates and at high temperaturescitations
- 2016Characterization of free radicals by electron spin resonance spectroscopy in biochars from pyrolysis at high heating rates and at high temperaturescitations
- 2016Deposit Shedding in Biomass-fired Boilers: Shear Adhesion Strength Measurements
- 2016Deposit Shedding in Biomass-fired Boilers: Shear Adhesion Strength Measurements
- 2015Rate constant and thermochemistry for K + O2 + N2 = KO2 + N2citations
- 2015Rate constant and thermochemistry for K + O 2 + N 2 = KO 2 + N 2citations
- 2014Effect of pyrolysis conditions and composition on the char structure and char yield of biomass chars
- 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
- 2012Devolatilization and Combustion of Tire Rubber and Pine Wood in a Pilot Scale Rotary Kilncitations
- 2012Combustion Aerosols from Full-Scale Suspension-Firing of Wood Pellets
- 2010Oxy-fuel combustion of solid fuelscitations
Places of action
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article
Investigating the Interaction between Ilmenite and Zinc for Chemical Looping
Abstract
<p>The iron and titanium oxide ilmenite is a benchmark oxygen carrier for chemical looping combustion (CLC) and oxygen carrier-aided combustion (OCAC). Both of them are combustion technologies for biomass and waste fuels with lower emissions and low costs for carbon capture. Here, the interaction between the ash component zinc and oxygen carrier ilmenite is studied in a two-staged vertical tube reactor. Three types of ilmenites─Norwegian rock ilmenite, synthesized ilmenite, and ilmenite extracted after 200 h of OCAC in a full-scale fluidized bed unit─were exposed to gas-phase Zn and ZnCl<sub>2</sub>. Following the exposure, samples were analyzed concerning morphology, chemical distribution, composition, and crystalline phases. The observations were complemented with thermodynamic equilibrium calculations. It is observed that the iron-rich layer formed on the external surface of rock ilmenite after activation promotes the reaction with both gaseous zinc compounds, with zinc ferrite formed in the external Fe-rich layer. In contrast, ilmenite with no segregation of Fe and Ti showed to interact less with zinc species. Metallic Zn penetrated the particles, while the interaction depth was shallow with ZnCl<sub>2</sub> for all investigated ilmenite oxygen carriers. The gaseous conditions, particle ash layer composition, and iron availability are shown to play an important role in the interaction between zinc compounds and ilmenite particles. Based on these results, interaction mechanisms for Zn and ZnCl<sub>2</sub> are proposed. This interaction could have environmental implications for the toxicity of ash streams from waste combustion in addition to possibilities for Zn recycling.</p>