| 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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Toivonen, Juha
Tampere University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2022Maskless fabrication of plasmonic metasurfaces in polymer film using a spatial light modulatorcitations
- 2021Maskless fabrication of plasmonic metasurfaces in polymer film using a spatial light modulatorcitations
- 2021In-situ monitoring of transient gas phase K-Cl-S chemistry in a pilot-scale combustorcitations
- 2021Light-patterned fluorescent gold nanoclusters in polycarbonate filmscitations
- 2020Sequential Collinear Photofragmentation and Atomic Absorption Spectroscopy for Online Laser Monitoring of Triatomic Metal Speciescitations
- 2020Sub-microwatt direct laser writing of fluorescent gold nanoclusters in polymer filmscitations
- 2020Analysis of ilmenite slag using laser-induced breakdown spectroscopycitations
- 2016Holographic patterning of fluorescent microstructures comprising silver nanoclusterscitations
- 2016Micropatterning of silver nanoclusters embedded in polyvinyl alcohol filmscitations
- 2016Sub-micron scale patterning of fluorescent silver nanoclusters using low-power lasercitations
- 2015Direct Laser Writing of Fluorescent Silver Nanoclusters in Polyvinyl Alcohol Films
- 2015Rate constant and thermochemistry for K + O2 + N2 = KO2 + N2citations
- 2015Rate constant and thermochemistry for K + O 2 + N 2 = KO 2 + N 2citations
- 2014Direct laser writing of photostable fluorescent silver nanoclusters in polymer filmscitations
- 2003Growth and properties of GaAsN structures
Places of action
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article
In-situ monitoring of transient gas phase K-Cl-S chemistry in a pilot-scale combustor
Abstract
<p>Biomass and waste derived fuels contain large amounts of sodium, potassium, and chlorine that form NaCl and KCl, that is, compounds that cause operational problems, such as slagging, fouling, and high-temperature corrosion. Therefore, alkali chlorides are the main reasons that explain why steam parameters are less advanced and efficient in biomass and waste-based power generation when compared to coal. These problems can be mitigated by introducing sulphur into the system to form alkali sulphates that are not as problematic on steel surfaces as alkali chlorides. However, the alkali sulphation process in realistic combustion environments needs further exploration. Thus, new diagnostic methods for in-situ monitoring of alkali sulphation kinetics in combustion systems are required. In this work, the simultaneous monitoring of KCl and KOH concentrations in a pilot-scale combustor using Collinear Photofragmentation and Atomic Absorption Spectroscopy (CPFAAS) during stationary and transient operation of the combustor, is introduced. The CPFAAS information is complemented by monitoring SO<sub>2</sub> and HCl concentrations using Fourier-transform infrared spectroscopy (FTIR). The temporal performance of the system is demonstrated by measuring the temporal combustor response curves for KCl sulphation for different Cl/K ratios during rapid changes in gaseous SO<sub>2</sub> concentrations. The temporal concentration curves obtained imply that the Cl/K ratio has a significant impact on the temporal alkali sulphation behaviour. The measurement system described enables further exploration of K-Cl-S chemistry in realistic large-scale power plant environments.</p>